ACRID FUME DETECTED DURING INITIAL TAKE OFF DISSSIPATED ON LANDING. REF TSI 79-01/6870 FOR T/S WORK PERFORMED. SUSPECT NR 1 ENGINE BLEED DUCTING STILL CONTAMINATED FROM PREVIOUS ENGINE. PERFORMED AIR CONDITIONING SYSTEM OIL SMOKE/FUMES CONTAMINATION REMOVAL FOR NR 1 ENGINE AND LT PACK IAW AMM. AFTER COMPLETION, NO FUMES NOTED FROM ENGINES OR PACK SYSTEMS. ACFT OK FOR SERVICE. ENGINE: GE, CF680C2B6F.

NR 2 ENGINE POSSIBLE HUNG START. NO LIGHT OFF. N2 AT APROX 20%. SMOKE OBSERVED BY GROUND CREW. NO SMOKE IN CABIN. GROUND CREW INFORMED PILOTS THAT SMOKE DISIPATED. NO OTHER ABNORMAL INDICATIONS OR ENG FIRE LIGHT OBSERVED IN COCKPIT. ENG START LEVER NR 2 NEVER MOVED FROM CUT-OFF POSITION. R & R NR 2 ENGINE STARTER PER M/M 80-11-01. PERFORMED NR 2 ENGINE START PER M/M 71-00-00. OPS CHECKS NORMAL.

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB ELECTRICAL SMOKE ODOR NOTICE IN FLIGHTDECK AND CABIN. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. ACCOMPLISHED W/C 08L00021001. FOUND NUMBER 2 OVEN OMITTING ELECTRICAL ODOR. REMOVE AND REPLACED OVEN, OPERATIONAL CHECK GOOD. NO ODOR REMAINING. PER CMM 25-37-26.

ATB/FUMES - RETURNED TO MSP DUE TO FUMES IN THE FLIGHT DECK AND CABIN. PERFORMED HIGH POWER ENGINE RUNS WITH NO ODORS FOUND. P-TRACK DATA INDICATED APU AS LIKELY SOURCE OF ODOR. APU INSPECTION IN WORK. FOUND #2 ENGINE AIR/OIL COOLER CRACKED. SAME REPLACED. (LP# 8056530)

FUME EVENT INFLIGHT AT CRUISE FL 360 SOURCE PACK 2--DESCRIPTION OF FUMES / ODOR(S)-DIRTY SOCKS, APPARENT CABIN SOURCE-CABIN AIR SUPPLY VENTS,VISIBLE SMOKE / HAZE-NO,MEDICAL ATTENTION REQUIRED NONE

SMKE/FUME- ON TAXI OUT CREW REPORTED FLIGHT DECK FILLED WITH NOTICEABLE HAZE AND SMOKE. FOUND APU OIL LEAK AT GEN SEAL AND OIL QTY XMTR. REPLACED GEN AND XMTR SEAL. INSPECTED APU BLEED DUCT AND PACK HEAT EXCHANGERS FOR CONTAMINATION, NONE FOUND. CHECKED CABIN LIGHT BALLASTS, COFFEE MAKERS, AND IFE SYSTEM WITH NO FINDINGS. REPLACED CABIN RECIRC FILTERS. PERFORMED HIGH POWER ENGINE RUNS AND DUCT BURNOUT WITH NO SMOKE.

FLT 161 BOS-SJU. INFLIGHT SMELLED FUMES (DIRTY SOCK) AT 3000FT IN DECENT ROWS 7 & AFT CABIN. COMPLIED W/ ODOR REMOVAL PROCEDURE FROM FCOM1 UPON DEPLANING, MID CABIN FA SMELLS BURNING NEAR 3R DOOR.; COMPLIED WITH INFORMATION NOTICE 2017-T015, STEP 1. ISOLATED FAULT TO TYPE 10. DIRTY CABIN SURFACE ODOR , CABIN CLEANED PER TSM 05-50-00-810-085-B/TSM 05-50-00-810-085-D. AIRCRAFT IS OK FOR SERVICE. PERFORMED A GVI OF ELECTRICAL CABLES IN 3R DOOR AND NEAR BY AREAS, NO DEFECT FOUNDS

ATB- PERFORMED AN AIR TURN BACK DUE TO ODOR IN THE CABIN AFTER TAKEOFF. TROUBLESHOT PER MSI WORKCARDS. FOUND EVIDENCE OF DE-ICE FLUID IN BOTH ENGINE INLETS. PERFORMED ECS DUCT DECONTAMINATION AND REPLACED RECIRC FILTERS. PERFORMED ENG RUNS NO ODORS PRESENT. (LP# 7699358)

AIRCRAFT WAS GROUNDED, FLIGHT ATTENDANTS REPORTED AN ODOR SMELLING LIKE BURNING WIRE COMING FROM THE AFT LEFT GALLEY. BELIEVED TO BE ORIGINATING FROM THE PLASTIC COVER ON THE NO SMOKING AND SEAT BELT SIGN ABOVE BIN 525. DURING TROUBLE SHOOTING JC 08L00021001, DETERMINED LIGHT BULBS IN THE SEAT BELT AND NO SMOKING SIGN ABOVE BIN 525 WERE BURNED OUT. REPLACED THE BULBS IN THE SIGN IAW AMM 33-25-00. OPS CHECKED GOOD.

STONG ODOR OF JET FUEL STARTED TO ENTER THE CABIN. IT WAS STRONGEST BY THE EXIT ROW, SEATS SIX AND SEVEN AS YOU WALKED TO BACK OF THE ACFT TO THE LAV. AFTER LANDING & OPENED THE CARGO BAY A VERY STRONG ODOR OF JET FUEL WAS COMING OUT. ACCESSED FWD CARGO WALL TO ENGINE FUEL SUPPLY TUBES. PRESSURIZED FUEL FEED SUPPLY TUBES & FOUND RT MID LEVEL COUPLING LEAKING. DISASSEMBLED CONNECTION & FOUND ENGINE FUEL FEED TUBING FLAIR CRACKED. REPLACED THE DAMAGED RT ENG FUEL FEED TUBE ASSY

THE PASSENGER CABIN FILL WITH SMOKE ABOUT 1 MIN AFTER LANDING DURING TAXI IN. THE SMOKE FUME OR ODOR QUESTIONAIRE WAS COMPLETED. C/W ODI AMSD WORK CARD 0550-2002 DETMENINED SOURCE OF SMOKE TO BE ENVIRMENTAL AND TYPE 9 EVENT. RAN APU AND BOTH ENGINES WITH PACK ISOLATED, SMOKE NOTED. A/C OK FOR SERVICE. (LP: 7792260)

FLIGHT CREW REPORTED BURNING SMELL IN COCKPIT DURING FLIGHT FOR APPROX 1 MINUTE. INSPECTED COMPRESSOR R2 AND FOUND NO ACRID SMELLS. DURING TROUBLESHOOTING OF CAC MESSAGE. RAN RIGHT CAC ON BOTH COMPRESSORS 1 AND 2 FOR OVER AN HOUR WITH NO SMELLS NOTED. FOUND CMSC R2 CAC TO BE INOPERATIVE. SEE REFERRED LOG PAGE FOR MAINTENANCE PERFORMED IN COMPONENT REPLACEMENT. CONFIRMED WITH TOMC THAT THIS SATISFIES CORRECTIVE ACTION. NO FURTHER DISCREPANCIES NOTED.

PRIOR TO PUSHBACK, WITH ALL DOORS CLOSED EXCEPT CREW ENTRANCE DOOR, RECEIVED AN ECAM ALERT FOR MAIN DECK CARGO SMOKE DETECTED MID & EXPERIENCED SMOKE IN COCKPIT FROM GASPERS. SMOKE ON SET RAPID & HIGHLY CONCENTRATED. SMOKE CLEARLY VISIBLE IN COCKPIT, APU BLEED AIR SELECTED OFF. FLIGHT CREW & LOAD CREW EXITED ACFT. APU HAD BEEN RUNNING FOR FIVE TO TEN MINS PRIOR TO SMOKE EVENT. AMM 21-51-00-03, OIL WETTING FOUND IN APU, APU WAS APROVED FOR R & R IAW W/C 4910000-00-00. OPS & LE

POSSIBLE BIRDSTRIKE ON TAKEOFF SMELL OF SMOKE IN CABIN AND COCKPIT ALL ENGINE INDICATIONS NORMAL. COMPLIED WITH ODOR AND SMOKE CHECK IN CABIN AND COCKPIT PER HMM 05-51-56

FLT 2751, TPA- SJU. INFLIGHT CREW REPORTS FUMES EVENT ON INBOUND FLIGHT. ( APU SYSTEM ). INSPECTION OF THE APU UPON ODOR IN THE CABIN/FUMES IN THE CABIN/OIL SMOKE AT THE APU. OPEN

UPON LANDING AND FLIGHT REVERSER DEPOLYMENT, FLIGHT ATTENDANTS REPORTED CABIN FILLED WITH WHITE SMOKE. ALL CREW NOTED A STRONG ODOR RESEMBLING EXCESSIVE HEAT, CONSISTENT WITH A POSSIBLE OVERHEATING CONDITION. NO EMERGENCY DECLARED, AND NO ONBOARD MEDICAL ATTENTION NEEDED FOR CREW OR PAX. EVALUATED DISCREPANCY REFERENCING FIM. DISCREPANCY COULD NOT BE DUPLICATED AT THIS TIME. NO FURTHER DEFECTS NOTED.

AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A STRONG WET SOCK ODOR FROM 10K FEET TO THE GATE. **SUPPLEMENTAL REPORT FOR AALA202601127259 SUBMITTED 1/12/2026 BY TUL: MAINTENANCE FOUND RESIDUAL OIL IN THE APU INLET AND V-BAND AREA, CLEANED APU AND ACCOMPLISHED A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM PER TASK CARD 26L00021014. WITH NO LEAKS OR ODORS NOTED. ** (CLOSED)

LAV A VERY FOUL ODOR SINCE TAKEOFF LAVATORY A CLEANED AS REQUIRED. NO FOUL ODOR AT THIS TIME. OK FOR SERVICE.

AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT IN FORWARD GALLEY REPORTED OVEN ON AIRCRAFT RIGHT STARTED SMOKING OR STEAMING AS SOON AS SHE TURNED IT ON EVEN BEFORE IT HEATED UP. REMOVED AND REPLACED FORWARD RIGHT GALLEY OVEN IAW AMM 25-32-00. OPS CHECKED GOOD.

PACK 1 FAIL IN CRUISE, HAPPENED SHORTLY AFTER SMOKE IN FLIGHT DECK. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. SMOKE IN CABIN AND FLIGHT DECK WHILE HOLDING AT 6000 FT. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. PERFORMED BLEED SYS 1 IN IDLE CONDITION OPERATIONAL TEST. REMOVED AND REPLACED ACM 1.

UPON APPLICATION OF TAKEOFF POWER, A STRONG SMELL OF WET/DIRTY SOCKS, ASSOCIATED WITH FUMES AND BURNING OF TURBO OIL WAS PRESENT. THE SMELL FADED WITH ALTITUDE AND WAS PRESENT AGAIN AFTER DESCENDING THROUGH 14,000 FEET PERFORMED GVI OF ENG NR 1 & 2, AND APU AND ALL CHECKED GOOD WITH NO SIGNS OF ANY LEAKAGE. NO HISTORY OF EXCESSIVE OIL CONSUMPTION ON ENGINES AND APU. PERFORMED AC SYSTEM OIL SMOKE/FUME CONTAMINATION REMOVAL, PURGE DUCT BURN OUT AND NO SMOKE / ODOR NOTED.

FLT 8107, MCO-SJU. FA REPORTS PERSISTANT DIRTY SOCK ODOR BETWEEN ROWS 9-19 DIRTY DESCENT. COMPLIED WITH INFO NOTICE 2017-T015M STEP 1 ISOLATED FAULT TO TYPE 10. PERFORMED DVI OF APU AND ENGINES FOR LEAKS AND OIL QTY, RAN PACKS ONE AT A TIME AND NO ODOR NOTED ALSO DEBRIEF ONE OF FA & SAID IT SMELL LIKE DIRTY CLOTH .TSM 05-50-00-810-085-B/TSM 05-50-00-810-085--D A/C OK FOR SERVICE.

FLIGHT ATTENDANT REPORTE BURNING RUBBER ODOR AFT GALLEY. PERFORMED SMOKE/ ODOR IN FLIGHT DECK/ CABIN CONDITIONAL INSPECTION TASK O5-51-26-800-801-C NO FOUL ODOR NOTICE AIRCRAFT BACK TO SERVICE.

(AIRCRAFT NOT GROUNDED) DIRTY SOCK SMELL FILLED CABIN DURING IDLE DESCENT. ODOR REPORTED BY ALL FLIGHT ATTENDANTS AND SOME PASSENGERS. COMPLIED WITH T/C 21-000-002. THIS ACTION CLEARS MDDR 224997. REF LP 2163487 FOR COMPLETION REQUIREMENTS OF T/C 21-000-002. ODOR NO LONGER PRESENT IN CABIN WITH APU OPERATING. PER T/C 21-000-002, T/C 21-000-003 REQUIRES COMPLETION IN 10 CALLENDAR DAYS. REF. L/P 2163478 FOR ODOR EVENT IN FLT.

SMELLED ODOR ON TAKE OFF AND LANDING -FOUND EVIDENCE OF HYDRAULIC FLUID LEAKING FROM YELLOW SYSTEM HP MANIFOLD BAY INTO APU AIR INLET. REPLACED PACKINGS ON YELLOW SYSTEM HP MANIFOLD IAW AMM 29-13-14. OPS/LEAK CHECK GOOD. PERFORMED DECONTAMINATION OF ECS SYSTEM IAW AMM 21-00-00-615-802-A. NO SMELLS NOTED. A/C BELLY WASH ON MWI ON MDDR 125491.DESCRIPTION OF FUMES / ODOR(S)-HYDRAULIC, APPARENT CABIN SOURCE-CABIN AIR SUPPLY VENTS, VISIBLE SMOKE / HAZE-VISIBLE SMOKE / HAZE, MEDICA

AFTER APU START WE SMELLED OIL AND SAW SLIGHT SMOKE IN CABIN. AFTER MOTORING ENGINE BEFORE START, SMOKE REAPPEARED A LITTLE MORE DENSE WITH SMELL AGAIN. MCC ELECTED TO PERFORM FINAL RUN WITH SITE REP PERFORMED 3 MIN APU RUN AND 3 MIN EACH IDEL ENGINE RUNS WITH SITE REP PRESENT. SITE REP CONFIRMED AT THE END OF RUN THERE WERE NO DEFECTS OR ODORS TO REPORT. CHECKS SATISFACTORY IN REF TO NJA CESSNA 700 ENGINE RUN AND TAXI CHECKLIST.

CHA OPS REPORTS A BURN/ELECTRICAL SMELL IN FLIGHT DECK OF 552. BATT STILL ON / COMPLIED WITH FIM 21-21-00-810-806-A01. COULD NOT REPLICATE BURN SMELL. OPS CHECK GOOD AT THIS TIME

POSSIBLE FUME EVENT DURING FLT. ENCOUNTER LIGHT TO MODERATE TURBULENCE FOLLOWED BY A STRONG SYNTHETIC ODOR. EMERGENCY DECLARED & O2 MASKS DAWNED. SEEMED TO ONLY BE SMELLED IN FLT DECK. OIL IN PACK SORT OF ODOR. (FLIGHT 5612), INSPECTED ACFT FOR EVIDENCE OF FLUID LEAKAGE. INSPECTED ENG OIL CAPS & APU OIL CAP FOR SECURITY & OIL SPILLAGE. NO DEFECTS NOTED. TROUBLESHOT POSSIBLE FUME EVENT IN COCKPIT IAW FIM 21-20-00. UPON INSP OF APU BAY, FOUND EVIDENCE OF LIGHT OIL SPILLAGE. CLE

AFTER STARTING APU & DISCONNECTING GROUND POWER, CREW & PAX SAW & SMELLED SMOKE. WAS WHITE & HAD A BURNING ELECT ODOR. APU SHUTDOWN AUTOMATICALLY & CREW POWERED DOWN ADDITIONAL SYS. PERFORMED APU MAGNETIC CHIP DETECTOR INSP, FOUND METAL ON COMPRESSION BEARING & DRAIN CHIP DETECTOR. REMOVED APU IAW AMM 49-11-01-004-001. INSTALLED APU UP TO & INCLUDING STEP F(43) IAW AMM 49-11-01-404-246. C/W RII REQUIREMENTS FOR INSTALLATION OF APU UP TO & INCLUDING STEP F(43) IAW AMM 49-11-01

COCKPIT FUMES SMELLED STRONGLY OF DIRTY SOCK TYPE ODOR. BOTH ENGINES SHOWING OIL QTY 24/24 BOTH ENGINES WERE RUN WITH CREW IN FLIGHT DECK, NO EVIDENCE OF BAD OR CHEMICAL ODOR DURING PACKS OPERATION WITH RECIRC FANS ON AND OFF, FLIGHT DECK, E/E AND A/C BAYS WERE INSPECTED NO EVIDENCE OF BURNING OR DAMAGE EQUIPMENT NOTED, WITH APU RUNNING AND PACKS ON WITH RECIRC FANS ON AND OFF NO EVIDENCE OF BAD ODOR NOTED FOLLOWING AMM 05-51-58-800-801-C3. ALL ENGINE PARAMETERS OK SMOKE/ODOR

SMOKE CLASS 2 MSG. CREW STATES NO SMOKE OR ODOR PRESENT IN CABIN. PERFORMED CFDS TEST OF SMOKE SYSTEM IN REF TO AMM 26-10-00-740-801-A, CHECK OKAY. NO FAULT ON LOWER ECAM.

INBOUND CREW REPORTING OILY/WET SOCK SMELL ON DESCENT TO SAN, APU NOT RUNNING AT TIME OF EVENT. RAN APU FOR SEVERAL MINUTES AT SEVERAL TEMP LEVELS. NO SMELL NOTED IN COCKPIT. FOUND OIL DEBRIS IN ENGINE NR2 NOSE SPINNER CONE. REMOVED SPINNER CONE COVER IAW AMM 72-11-01-000-801-A. SECTION A. (2) REPLACED FAN SHAFT COVER PACKING IAW AMM REF 72-15-00. AWAITING IDLE POWER TEST. #2 ENG FAN SHAFT COVER PACKING. COMPLETED LEVEL A DECONTAMINATION OF THE ECS REF AMM TASK 21-00-00-615-8

STRONG HYD SMELL ON TAKEOFF. PACK 1 OFF ISOLATED SMELL. APPARENT CABIN SOURCE CABIN AIR SUPPLY VENTS, VISIBLE SMOKE / HAZE NO, MEDICAL ATTENTION REQUIRED NONE

SHORT FINAL SMELLED SMOK E. AFTER LANDING ECAMS AIR PACK 1 OVERHEAT AND SMOKE DET FAULT. CREW DEBRIEF AND SMOKE. PER CP SMELL WAS DETECTED IN FLIGHT DECK WHICH THEY TOUGHT WAS SOMETHING BURNING IN AN OVEN. LT PACK SHUT DOWN AND FAULT APPEATED. NO SMELL DETECTED BY FAS IN FORWARD CABIN. SLIGHT SMELL DETECTED BY AFT FA FOR A FEW SECONDS WHICH MAY BE UNRELATED. PACK ONE INOP AND HAS HISTORY. MEL 2152Y ITEM REJECTED. NEEDS TSM FOR CABIN ODOR PERFORMED. ITEM LOCKED TO CONFIRM FIND

SMOKE - CREW REPORTED BLACK SMOKE IN THE COCKPIT AND CABIN DURING LANDING ROLL OUT AND DECLARED AN EMERGENCY. AARF COULD NOT SEE ANY SMOKE. EVENT WAS POSSIBLY CAUSED BY RUNWAY TREATMENT CONTAMINATION. NO TROUBLE FOUND. PERFORMED NO-GO ECS DECONTAMINATION. (LP 8035104)

AFTER PARKING AT GATE 11 IN BDL FA REPORTS HAZY. SMOKE VISIBLE IN REAR OF CABIN. SMELL WAS REPORTED AS PLASTICY & CHEMICALLY. THIS OCCURED AFTER PARKING AT GATE 11. APU WAS STARTED MORE THAN 5 MINS BEFORE APU BLEED WAS USED. 5 MINUTES LATER NO INDICATIONS NOTED. INSPECTED APU COMPARTMENT OF A/C. FOUND DE-ICING FLUID IN INLET OF APU AND AROUND APU BAY. WILL REQ WASH. PERF. DUCT BURNOUT WITH ENG 1 & 2 IAW AMM 36-10. FWD TO MEL 49-10-01A PER MCC ADVISE. ACFT OK FOR SVC. M PROC C

FUMES/FIRE - CREW REPORTED A BURNING SMELL IN CABIN DURING BOARDING. CORRECTIVE ACTION: FOUND PASSENGER BAG ON FIRE IN FWD CARGO. SAME REMOVED. R/R RECIRCULATION FILTERS. (L/P# 7699338)

FLT # 988 LAX- BOS. " FLIGHT ATTENDANTS REPORT DIRTY SOCK SMELL DURING INITIAL CLIMB. ODOR WAS MOST PREVALENT BETWEEN ROWS 6-11. FLT CREW COMPLETED CABIN ODOR RECOGNITION AND ISOLATION CHECKLIST. PROCEDURE WAS INCONCLUSIVE AND NEITHER PACK ISOLATED THE ODOR. APPROXIMATELY ON HOUR AFTER TAKE OFF, FUMES ODOR REPORTEDLY DISSIPATED. NO FURTHERFUMES OR ODORS REPORTED AND FLIGHT CONTINUED TO DESTINATION WITHOUT FURTHER INCIDENT.; COMPLIED WITH INFORMATION NOTICE 2017-T015. STEEP 1,

FLT # 938 SJD-JFK. MAGIC MARKER SMELL IN FLIGHT DECK AND FWD GALLEY , APU BLLED BOTH PACKS ON. ( APU SYSTEM ), AIRCRAFT N2039J OPERATING FLIGHT 938 SJD - JFK REPORTED A CABIN ODOR EVENT. THE FLIGHT CREW REPORTED PACK 1 FUME EVENT ON TAKEOFF, LEVEL 2 DIRTY SOCK SMELL. THE ODOR DISSIPATED AFTER SELECTING PACK 1 OFF. THE AIRCRAFT HAS BEEN TAKEN OUT OF SERVICE AT JFK FOR TROUBLESHOOTING. THIS AIRCRAFT HAD ONE PREVIOUS REPORT RELATED TO THIS EVENT WITHIN THE LAST 30 DAYS.

LAVATORY D3, SMOKE ALARM WITH NO SIGNS OF SMOKE. ALARM TURNED OFF ON IT`S OWN. NO SMOKE OR ODOR WAS TRACED BY F/A. LOOKED FOR ANYTHING SUSPICIOUS INCLUDING UNDER SINK AND WAS UNABLE TO LOCATE ANYTHING SUSPICIOUS. NO HISTORY FOUND. REF TSM 26-14 TASK 801, SINCE ALARM WAS VERY BRIEF, AND STOPPED THE FAULT IS CLEARED. NOTE PASSENGER WAS INSIDE WHEN ALARM SOUNDED.

AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT THE FORWARD LAVATORY SMOKE DETECTION CHIME ALERTED SMOKE WHILE PASSENGER WAS ALLEGEDLY VAPING. THE MID AND AFT RIGHT SMOKE DETECTION CHIME WENT OFF SIMULTANEOUSLY WITH FORWARD LAVATORY BUT NO PASSENGERS WERE USING THEM. THE FLIGHT DECK NEVER GOT ANY SMOKE ALERTS. MAINTENANCE ACCOMPLISHED A POWERUP TEST RESET OF THE LAVAORY SMOKE DETECTION SYSTEM PER AMM 26-17-00-710-001-A .

AFTER ENGINE START, TRIM AIR WAS VERY HOT IN CKPT AND AFT DUCTS. 188+F IN CKPT, 184+F AFT. CYCLED TRIM AIR SWITCH AND FUNCTIONED NORMALLY. AT CRUISE, FA REPORTED SMELLING ELECTRICAL SMELL AT L1 DOOR. POSSIBLE SMELL AROUND 2L DOOR. ODOR MAY BE ASSOCIATED WITH THE TRIM AIR. REPLACED TRIM AIR PRESS. REG. VALVE (V48) PER A220 AMP 21-61. (LP 8061456)

RETURNED TO ATL DUE TO FUEL ODOR IN CABIN AND FLIGHT DECK. PERFORMED BOROSCOPE OF LT AND RT ENGINES, INSPECTED APU DUCTS FOR OIL, COMPLETED ENGINE RUNS AND SMOKE/FUME INSPECTIONS AND REPLACED CABIN RECIRCULATION FILTERS. NO DISCREPANCIES NOTED AND NO ODORS PRESENT, OPS CHECK GOOD.

AIRCRAFT WAS GROUNDED: AIRCRAFT DIVERTED TO PHX DUE TO THE FLIGHT CREW REPORTING THAT DURING CLIMBOUT THERE WAS A STRONG ODOR OF CHEESE OR DIRTY SOCKS IN THE FLIGHT DECK AND THE ENTIRE CABIN. THE FLIGHT CREW LEVELED OFF AT 27, 000 BUT THE ODOR REMAINED. THE FLIGHT CREW DID NOT DECLARE AN EMERGENCY AND LANDED THE AIRCRAFT AT PHX WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE APU CHIP DETECTOR LEAKING AND REPLACED THE O-RINGS PER AMM 49-91-42. A SATISFACTORY LEAK CHECK WAS ACC

BURNING ODOR IN CABIN. GOT VERY HOT & CHKD TEMP CONTROLLER, TEMP FLASHING 300 & E5. ATTEMPTED TO ADJUST CONTROLLER TO REDUCE TEMP, NO SUCCESS. PILOT SIDE OF CONTROLLER SEEMS TO BE WORKING NORMALLY. POWERED ACFT & BEEN ABLE TO DUPLICATE DISCREPANCY. PERFORMED ECS BURN OUT PROCEDURE & NOTED TEMP ON CABIN DUCT STAY STUCK BTWN 120-180 DEGREES, NEVER WENT DOWN AS COCKPIT ONE WHICH DUCT TEMP DROPS AT 40 DEGREES WHEN SELECTED FULL COLD. ACCESSED CABIN & COCKPIT TEMP CONTROL VALVES O

SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW. REF LP 7458681 COMPLIED AMM TASK 05-51-58-800-801-C3 WITH CMC MSG 21-24700 VISUAL CHECK AND DEACTIVATED LOWER RIGHT RECIRCULATING FAN. OPERATE AIR CONDITIONING ON GROUND, NO MORE TRACES OF ODOR/SMOKE ON THE CABIN.

AFTER LANDING STATUS MSG "MN CARGO LOOP 2" ILLUMINATED. ACCOMPLISHED FIM 26-14 FT 809 BLOCKS 1-2-3-4-5-6 AND 7 AFTER AFOLTS TEST, NO MN CARGO LOOP 2 PRESENT. CARGO SMOKE DETECTION SYSTEM OK. AIRCRAFT RETURNED TO SERVICE.

(AIRCRAFT NOT GROUNDED) DIRTY SOCK ODOR EVENT. FWD FA'S DETECTED IT DURING FINAL DESCENT. PILOTS DETECTED IT AFTER LANDING DURING TAXI TO PARKING. PERFORMED TC 21-000-002, PER STEP 4.D.4. APU MEL CAN BE CLEARED IF NO ODOR IS REPRODUCED. NO ODOR REPRODUCED AT THIS TIME. THIS CLEARS MEL 49-10-01A & MDDR 224671. NO M PROCEDURES TO REVERSE. PLACARDS REMOVED. PERFORM A32X-TC 21-000-003. PER LVL 3 C/W APU FLUID LEAK INSPECTION REF TC 05-000-011.

DIV/DE/FUMES- DIVERTED TO ATL DUE TO ACRID CHEMICAL SMELL IN CABIN ROW 19 AFT. RAN ENGINE/APU BLEEDS, LEFT-RIGHT PACKS. INSPECTED LEFT-RIGHT EMERGENCY DOOR EXIT HEATER BLANKETS, PSUS, COFFEE MAKERS, OVENS, ELECTRICAL OUTLETS AND IFE. NO TROUBLE FOUND. UNABLE TO REPRODUCE ODOR. REPLACED RECIRC FAN FILTERS. RETURNED AIRCRAFT TO SERVICE.

AT GATE READY TO PUSH. STRONG FUME ODOR ON FLIGHT DECK. AFT FLIGHT ATT CALLED SAYING SMELL OF SMOKE IN AFT OF AIRPLANE. R & R APU STARTER/GEN IAW AMM 49-41-21. HARNESS ALSO REPLACED IAW SAME. PERFORMED SNIFFER TEST WITH EACH INDIVIDUAL PACK AND BLEED SOURCE ALL READINGS NORMAL AT THIS TIME. RECIRC FILTERS R & R IAW 21-25. OPS CHK GOOD. (LP 7807830)

AIRCRAFT IN BASE MAINTENANCE: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO ELP DUE TO THE FLIGHT CREW REPORTING THAT THE FLIGHT ATTENDANTS WERE EXPERIENCING HEADACHES DUE TO A SMELL FROM THE AFT GALLEY. THE AIRCRAFT LANDED SAFELY AT ELP WHERE IT TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE PERFORMED TASK CARD 08L00021001, PERFORMED GVI OF PACK INLETS, ENGINE INLETS AND APU INLET, INSPECTED LOWER BELLY FOR FLUID WITH NO FINDINGS, RAN LEFT AND RIGHT PACKS FULL

AIRCRAFT WAS GROUNDED: DIRTY SOCK FUMES BELOW 10,000 IN ALL PHASES OF FLIGHT. ESPECIALLY DOMINANT DURING POWER CHANGES, IDLE TO ADVANCED SETTINGS. MAINTENANCE DETERMINED APU WAS SOURCE OF ODOR, APU WAS CHANGED PER SOF J/C'S AND ACCOMPLISHED ON J/C26L3049003.

UPON CLIMBING THROUGH APROX 2500', RECEIVED A E2 OIL LOW PRESSURE CAS MESSAGE. ADVISED NEEDED TO RETURN TO AIRPORT. ABOUT A MINUTE LATER DETECTED A BURNING ODOR WHICH WAS SHORTLY FOLLOWED BY SMOKE FILLING THE CABIN. DECLARED AN EMERGENCY & ADVISED RETURNING. RAN SMOKE EVACUATION QRC AFTER DONNING MASKS & GOGGLES ON A BASE LEG AND LANDING MOMENTARILY. CONFIGURED ACFT FOR LANDING & LANDED SAFELY. NOTICED A CONSIDERABLE AMOUNT OF SMOKE IN CABIN. FIRE DEPARTMENT USED HEAT SENSORS

DIRTY SOCK SMELL BRIEFLY AT 10000 FT DURING CLIMB DIRTY SOCK SMELL RETURNED BRIEFLY AT 25000 FT DURING DECENT AT 10000 FTB WITH ENGINES AT IDLE SMELL RETURNED GOT STRONG UNTILL POWER INCREASED ABOVE IDDLE, THEN DISSIPATED SMELL NOTED IN FWD GALLEY - NO SMELL MID OR AFT. ODOR WAS INFLIGHT DECK AND GALLEY. WATER WASH AND BORESCOPE REQUIRED. SCHEDULED ENGINE CHANGE 1/7/2026. LATER REPLACED ENGINE. (LP 8062126, 8062128, 1391192)

FUME ODOR OBSERVED IN FLIGHT DECK WHILE ON DESCENT FL 250, ISOLATED W/ PACK 1 OFF -IAW TSM 05-50-00-991-01200-00-A FOUND ENG#1 DEOILER SEAL LEAKING. R & R SEAL IAW AMM 72-60-31. LEAK CHECK GOOD. PERFORMED LVL A DECONTAMINATION IAW AMM 21-00-00. NO FURTHER ODORS DETECTED. ACFT OK FOR CONTINUED SERVICE.

FLIGHT 2095. RAMP CREW REPORTED SMOKE OUT OF APU AS WELL AS OIL ON BOTTOM OF TAIL CONE. REMOVED FROM SERVICE. PLACED ON MEL. MEL CLEARED BY. PERFORMED GVI OF TAIL CONE AREA, NDN. PERFORMED APU OPS CHECK IAW AMM 49-10-00-700-801-A, OPS TEST GOOD. PLACARDS REMOVED, MTX PROCEDURES REVERSED, MTX CONTROL NOTIFIED. COULD NOT DUPLICATE.

AIRCRAFT WAS GROUNDED: WHEN AIRCRAFT WENT TO IDLE ON DESCENT, FO AND MYSELF NOTICED HEAVY "DIRTY SOCK" SMELL. IT WAS ONLY IN COCKPIT. (OPEN)

AIRCRAFT WAS GROUNDED: AN EMERGENCY DECLARED AND ACFT RETURNED TO MIA DUE TO FLT CREW REPORTING A BURN SMELL IN FLT DECK & CABIN ALONG WITH HAZE BEING NOTED IN CABIN WHICH WENT AWAY A FEW MINS LATER. FLT CREW DONNED THEIR OXYGEN MASKS, PERFORMED QRH PROCEDURES & LANDED SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINT INSP BOTH ENGS FOR LEAKS WITH NONE NOTED. INSPECTED BOTH A/C SYSTEMS WITH NO DEBRIS NOTED. INSPECTED GALLEYS OVENS AND NO ABNORMAL ODORS NOTED. ACCOMPLISHED SMOKE,

FLT 149, JFK-GND. CABIN CREW REPORTED METALLIC SMELLING FUMES, ODORS AT APPROX 2000 FT, ON FINAL APPROACH. STARTED ON TOD AND LASTED UNTIL LANDING. ODOR INTENSIFIED AROUND SHORT FINAL AND CAUSED NOSE, THROAT & EYE IRRITATION.

FLT 775, JFK-MSY. CLIMBING THROUGH 6,000 FT, BOTH PILOTS DETECTED DIRTY SOCK, MUSTY, OIL ODOR IN THE FLIGHT DECK. IMMEDIATELY PERFORMED ODOR RECOGNITION AND ISOLATION ECL. PERSISTANT ODOR STOPPED AFTER USING THE PROCEDURE, ACFT HAS FUME HISTORY WITHIN 30 DAYS. LAST EVENT WAS ON 12-9-2025. COMPLIED AMP BD500-A-J21-22-00 , NO LEAKS FROM ENGINES OR APU COMPARTMENT, PACKS 1 & 2 DECONTAMINATION HAS BEEN ACCOMPLISHED, NO ODOR DETECTED IN COCKPIT OR CABIN , A/C OK FOR SERVICE.

SMELLED BURNING HYDRAULI C FLUID, 8000 FT THROUGH TD ON SNA ARRIVAL. PRESSURIZED HYD AND RAN PACKS FOR A WHILE, MOVED FLIGHT CONTROLS AND CHECKED FOR LEAKS ALSO CHECKED CABIN FOR SMELLS, UNABLE TO DUPLICATE THE SMELL, NO PREVIOUS HISTORY.

MOMENTARY MUSTY/MOLDY ODOR WHEN SWITCHING FROM ENG BLEED TO APU BLEED WITH PACKS RUNNING. CURRENT CREW DESCRIBED SMELL AS MUSTY/MOLDY. PREV CREW DESCRIBED IT AS A FUEL SMELL. INSPECTED APU BLEED VALVE, FOUND BAD O-RINGS ON BLEED LINE. R & R O-RINGS IAW AMM 36-12-03. RAN PACKS OFF APU BLEED, NO SMELLS NOTED. OK FOR SERVICE.

REPORTED ODOR ON DESCENT. CREW DONNED OXYGEN MASKS. CORRECTIVE ACTION: FOUND RIGHT ENGINE SPINNER WET WITH OIL. WIPED CLEAN AND PLACED ON REPETITIVE INSPECTION MON. PERFORMED LEVEL B DECONTAMINATION. NO HISTORY. DEFERRED TO MONITOR. LATER, C/W TERMINATING ACTION OF W/C 7100-2018-02 STEP 8.A.3.A.1. INSPECTION OF SPINNER SHOWS NO OIL WETTING ON THE SPINNER OR FAN BLADES. OK TO CLOSE. (LP 8117284, 8117288)

UPON LANDING THERE WAS A HAZE IN THE CABIN AND COCKPIT. TAXIING TO THE RAMP WE GOT A L PACK FAIL CAS. BLACK FILM COATING EVERYTHING IN THE CABIN. REMOVED LEFT ACM AND INSTALLED REPAIRED LISTED BELOW I/A/W AMM 21-52-03. LEAK AND OPERATIONAL CHECKS SATISFACTORY. NO HAZE OR ODOR WAS NOTED IN CABIN OR COCKPIT DURING OPERATION OF ACM.

FLT 570 MCO- RIC, AIRCRAFT N784JB OPERATING FLIGHT 570 MCO-RIC REPORTED A CABIN ODOR EVENT. THE FLIGHT CREW REPORTED THAT ON DESCENT BELOW 10,000 FT TO ABOUT 5000 FT, THE COCKPIT RECEIVED FUMES. SMELL DISAPPEARED BUT THEN REAPPEARED ON TAXI IN TILL ENGINES SHUT OFF. THE AIRCRAFT WAS TAKEN OUT OF SERVICE IN RIC FOR TROUBLESHOOTING. THIS AIRCRAFT HAS PREVIOUS REPORTS RELATED TO THIS EVENT WITHIN THE LAST 30 DAYS.; AIRCRAFT N784JB OPERATING FLIGHT 570 MCO-RIC REPORTED A CABIN OD

DURING CRUISE, AN ELECTRICAL/PLASTIC INSULATION BURNING ODOR IN CABIN, AND A VERY LIGHT HAZE OF SMOKE NOTICEABLE AGAINST INCOMING SUNLIGHT, CREW WAS ABLE TO LOCATE THE SOURCE AREA, LOWER SIDEWALL ADJACENT TO SEAT NR 4, LOCATION THAT ALSO PRESENTS AN AREA OF DETACHED CARPET LINER. REMOVED THE FAILED FLOOR TRACK SWITCH DUE TO SWITCH STUCK CLOSED, OVERHEATING SEAT MOTOR. INSTALLED A NEW SWITCH, POWERED ON ACFT & ALLOWED INTERIOR TO BOOT. PERFORMED OPS CHECKS OF THE FLOOR TRACKIN

FLT 2038 SJO- FLL, AIRCRAFT N629JB HAD A REPORT OF THE FOLLOWING - INFLIGHT REPORTS BELOW 10,000 FT AN ODOR EVENT ROW 20 AND BEHIND TO THE GALLEY (DIRTY SOCK SMELL) NO 30 DAY HISTORY FOR CABIN ODOR.; AIRCRAFT N629JB HAD A REPORT OF THE FOLLOWING - INFLIGHT REPORTS BELOW 10,000 FT AN ODOR EVENT ROW 20 AND BEHIND TO THE GALLEY (DIRTY SOCK SMELL) NO 30 DAY HISTORY FOR CABIN ODOR."

IN FLIGHT FA REPORTS AN ELECTRICAL BURNING SMELL IN GALLEY AREA. CONFIRMED HOT JUG OFF. NO C/B POPPED. SLAVED IN HOT JUG. OPS CHECK GOOD. LEFT HOT JUG ON FOR 20MINS WITH NO BURNING SMELL OBSERVED. REMOVED DEFECTIVE HOT JUG FROM A/C.

AIRCRAFT WAS GROUNDED: STRONG ODOR REPORTED BY NR 2 FLIGHT ATTENDANT DESCENDING THROUGH 8,000 FEET. NO ODOR IN THE FLIGHT DECK. ALL FLIGHT ATTENDANTS MENTIONED SIMILAR SMELL ON TAKE OFF ODOR SIMILAR TO DIRTY SOCKS OR WET DOG SMELL. MAINTENANCE FOUND THE #2 ENGINE LEAKING OIL INTERNALLY AND REPLACED IT PER TASK CARD 08L40072003. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.

AFT CARGO FIRE INDICATION AFTER ENGINE SHUT OFF IN BLOCK, RAN QRH CHECKLIST AND DISCHARGED FIRE BOTTLE. CALLED TOWER AS EMERGENCY AIRCRAFT AND ASKED FOR FIRE TRUCKS. FIRE CHIEF FOUND NO ISSUE, NO SMOKE OR FIRE. MAINTENANCE REMOVED & REPLACED #1 AFT CARGO FIRE BOTTLE IAW BAC AMM 767 26-23-02; OPS CHECK GOOD C/W RII FORM 26-04-01. AIRCRAFT RETURNED TO SERVICE.

WHILE ON CLIMB OUT WE NOTICED A BURNING SMELL IN THE FLIGHT DECK ACCOMPANIED BY HIGH COCKPIT TEMPERATURE. SHORTLY AFTER WE RECEIVED THE DUCT 1 OVERTEMP YELLOW CAS MESSAGE. THE ECS SYSTEM SYNOPTIC PAGE SHOWED A YELLOW HX VALUE FOR THE LEFT SIDE AT 320°F. WE ACCOMPLISHED THE QRH PROCEDURE BUT THE CAS MESSAGE NEVER CLEARED IN THE ONE MINUTE ALLOTMENT DURING EACH QRH DECISION TREE. DUE TO THE BURNING ODOR REPORTED BY PILOTS, MCC REQUESTS THAT COCKPIT TEMP MODULATING VALVE BE REPL

POSSIBLE ELECRICAL BURNING ODOR IN FWD GALLEY & FLIGHT DECK. ODOR APEARS TO COME FROM RT RECIRC FAN. RT RECIRC FAN INOPERATIVE. PERFORMED SMOKE IN CABIN CHECK AS PER AMM TASK 05-51-10-200-801-C1. ALL EVIDENSE OF ODOR DISIPATATED. OK TO CONTINUE ON MEL. APPROVED RT RECIRC FAN PLACED ON MEL 2121B. AMM 05-51-10-200-801-C1, SMOKE IN CABIN CHECK. REQUIRED DUE TO SMOKE ODOR IN CABIN. ODOR APPEARS TO COME WHEN RT RECIRC FAN ON & DISIPATES QUICKLY WHEN FAN TURNED OFF. PERFORMED AMM 0

Saturday October 11th, 2025 A British Airways flight was forced to make an emergency landing in Romania after it was reported that four people had fallen ill with suspected smoke inhalation. The flight departed Istanbul and was heading towards London, but requested to land at Bucharest’s Henri Coanda International Airport at 5.50pm.

AIRCRAFT 3055, LEAVING ATL CRUISING AT FL300, FLIGHT ATTENDANTS REPORTED VERY STRONG "BURNING RUBBER" SMELL FROM DOOR 3 AFT TO AFT GALLEY. AFTER APPROX. 10 MINS AT FL300, ODOR DISSIPATED. UPON DESCENT DURING ARRIVAL AT FL300, SAME ODOR RETURNED. DEFFERRED 3L & 3R FLOOR HEATING ELEMENTS INOP PER MEL 25-27-01. LATER, REPLACED CONTROL UNIT (14DS). (LP 8056616, 8056618)

AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED ON LANDING ROLLOUT AT SAN DUE TO THE FLIGHT CREW REPORTING THAT AFTER LANDING AT APPROXIMATELY 60 KNOTS, ECAM MESSAGE AVIONICS SMOKE. NO OTHER INDICATIONS OF HEAT OR FIRE. NO SCENT OF SMOKE IN THE FLIGHT DECK NOR THE CABIN. FIRE DEPARTMENT INSPECTED THE FORWARD AVIONICS BAY AND NOTED NO HEAT SIGNATURE NOR EVIDENCE OF SMOKE. MAINTENANCE ACCOMPLISHED AVIONICS SMOKE FAULT TROUBLESHOOTING PER TSM 26-15-00-810-803-A WITH NO FAUL

FA AND PAX IN ROW 25 SMELLED DIRTY SOCKS DURING TAKE OFF AND LANDING WAS REPORTED TO YHE PILOTS AFTER LANDING DURING TAXI IN PACK 2 AND XBLEED SHOT PER ELIMINATION OF FUMES PROCEDURE FUMES DISSIPATED -INDENTY CAUSE OF SMELL IAW TSM 05-50-00-810-831A, FOUND APU COMP. CONTAMINATED. PERFOM CLEANING OF APU IAW AMM 49-16-00 AND R/R RECIRCULATION FILTERS IAW AMM 21-21-41 AND PERFORMED PACK BURNOUT 21-00-00. PERFORMED INSP OF PACK 1 & 2 BAYS NO FINDINGS FOUND ON THEM ( NO TRACES OF

ACFT GROUNDED: DURING CRUISE AFT F/A CALLED & SAID THEY SMELLED A STRONG ODOR OF SULPHURIC LIKE ODOR. FWD F/A CALLED & SAID SAME THING. CABIN JUMPSEATER REACHED UP & SHUT OFF LAV, ATTN, READ POWER BUTTONS ON CIDS PANEL. ODOR DISAPPEARED & NO FURTHER ISSUES. STONGEST ODOR AROUND 2L & 2R ACCORDING TO JUMPSEAT F/A. MX ACCOMP WORK CARD 26L0002001 & DURING CFDS INTERROGATION & AMM 21-21-00 OPS TEST FOUND NR 2 RECIR FAN WAS TRIPPED & TRIPPED ITS CIRCUIT BREAKER & EMITTED A SULFUR-L

DIV TO MSY DUE TO CREW REPORTS ODOR IN AFT GALLEY. PERFORMED BSI OF NR 2 ENGINE LCP AND HPC PER W/C 7100-2018. FOUND OIL WETTING EVIDENCE AT HPC STAGE 4 & 5. REPLACED NR 2 ENGINE. (LP 7987638)

PILOTS REPORT AFT CARGO SMOKE INDICATION ON ECAM WITH ANNUNCIATOR 5-8 MINS FROM LANDING. NO VISABLE SMOKE IN CABIN & NO ODOR DETECTED. FIRE DEPARTMENT DID NOT PICK UP ANYTHING ON INFRARED SCANNERS AFTER LANDING. UPON OPENING AFT CARGO DOOR, NO UNUSUAL CONDITIONS WERE IMMEDIANTLY NOTICED. FAULT WAS NOT ACTIVE & NO HISTORY OF FAULT IN 90 DAYS. POST FLT REPORT SHOWS SMOKE DET FAULT, FAILURE MSG, SMOKE DET LOOP. REF TSM 26-17-00-810-807-A FOR SMOKE DET LOOP FAULT, ACCOMPLISHED TE

ODOR EVENT IN THE DECENT PASSING 8000FT, ODOR ONLY IN-FLIGHT DECK. AIRCRAFT REMOVED FROM SERVICE FOR THIS EVENT. PERFORMED TSM 05-50-000-810-836-A FOUND SOURCE OF FUME TO BE APU. IAW AMM 49-00-00-860-214-A, INSPECTED AND CLEANED AREA NO DEFECTS NOTED. FOUND APU TO BE SOURCE OF THE FUME EVENT PLACED ON MEL 49-10-01A C/N 1241035 DD 01/01/2026 WITH MCC RAH 428023. PLACARDS INSTALLED.

FLT #1085 MCO-BUF "ODOR EVENT ON APPROACH. 4000' DESCENT TO 3000' FCOM 1 ISOLATION PACK1 OFF APU OFF STOPPED SMELL.; ACCOMPLISHED LEVEL B DECONTAMINATION REF LOG PAGE 4456794. OPERATED APU FOR SEVERAL HOURS WITH NO ODOR OR LEAKS NOTED. A/C OK FOR SVC. COMPLIED WITH INFO-NOTICE 2017-T015L. LEVEL B DECONTAMINATION PERFORMED PER TSM 05-50-00-810-085B.; REF LOG PAGE 4456792 ITEM 1.; PERFORMED DECONTAMINATION OF THE BLEED AIR DUCT - LEVEL B IAW AMM 36-10-00. NO SMELL NOTED AT THIS

AFTER AN IDLE POWER DESCENT DURING THE LEVEL OFF & ENG POWER UP, FELT A VIBRATION ALONG WITH A NOISE FROM REAR OF ACFT. RECEIVED AN AMBER ENG VIB R CAS MSG. NOTICED A BURNING OR EXHAUST ODOR IN CABIN. PERFORMED QRH FOR ENG VIB R CAS WHICH LED TO REDUCE POWER. ENGINE VIB STILL FELT & CAS MSG STILL DISPLAYED. FOLLOWED QRH, DIRECTED TO SHUT THE AFFECTED ENG DOWN. PERFORMED A SINGLE ENG LANDING WITH NO FURTHER ISSUES. TROUBLESHOT ENG VIBRATION. TRIED TO TURN FAN (N1) & IT VERY RO

AFTER PUSHBACK AND ENGINE START FA'S IN AFT GALLEY REPORTED A STRONG BURNING ELECTRICAL ODOR FROM THE AFT CENTER LAV AREA. FLIGHT RETURNED TO THE GATE AND DEPLANED. LAVATORY WASTE SYSTEMS VACUUM GENERATOR. C/W MSI PREVENTION PROGRAM STEPS A - G FOUND VACUUM GEN CB POPPED IN REAR CB PANEL FWD VACUUM GEN TO MEL 38-30-01D "M" PROCEDURES C/W MEL & PLACARD INSTALLED. (LP: 8081427)

FLT 2833 ORH- RSW, ON FINAL APPROACH AT AROUD 1500 FT IN FLIGHT ADVICEED US FUMES/ODOR AT BACK GALLEY ( PACKS ). PERFORMED LEVEL B DECONTAMINATION OF THE ECS IAW TASK CARD A 320-21-00-00-615-803A. NO ODOR EVENT AT THIS TIME . THIS CLEARS MDDR . MX-4 - UPDATED."

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO DFW DUE TO THE FLIGHT CREW REPORTING THAT WHILE CLIMBING OUT OF FL220, THE FLIGHT ATTENDANTS IN AFT GALLEY REPORT AN ELECTRICAL BURNING SMELL. FLIGHT CREW TURNED OFF THE COMMERCIAL POWER PER THE QRH TO LIMIT OR REDUCE THE ODORS. THE AIRCRAFT LANDED SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND BURNED NAPKINS BEHIND COFFEE MAKERS AND REMOVED THEM. AS A PRECAUTION MAINTENANCE REPLACED BOTH

CHEMICAL SMELL IN AFT GALLEY AFTER T/O. DESCRIBED AS PLASTIC TYPE ODOR. ON LANDING TURNED INTO DIRTY SOCK ODOR AND REPORTED STRONG BY FA'S. ALSO REPORTING MILD HEADACHES. NO ODORS IN FLT DECK. C/W ER/A 613840-14TR REV B SEC II. WATER WASH DUE WITHIN 5 DAYS. THIS CLOSES THIS MONITOR AND LOG. (LP# 8139086)

DURING INITIAL CRUISE FLIGHT F/A INDICATED FUME LIKE ISSUE IN AFT CABIN. PORTABLE OXYGEN USED FOR REMAINDER OF FLIGHT. DECLARED EMERGENCY RETURNED TO SAN. GROUNDED - YES. AIR TURNBACK - CONSULTED WITH PILOTS. NO ODORS WERE PRESENT DURING TAXI OUT BUT F/A REPORTED FEELING ILL. AN HR INTO FLT MULTIPLE FLIGHT ATTENDANTS HAD SAME SYMPTOMS. PERFORMED IFIM TASK 21-00-00-810-830. SMOKE OR FUMES IN CABIN, SOURCE UNKNOWN. CONFIRMED APU DRAIN MAST IS CLEAN. CONFIRMED HYD RESERVIORS ARE

FLT 1003, JFK-SJU. ACRID SWEET ODOR OBSERVED IN THE COCKPIT, DESCENDING THROUGH 11,000 40 MILS NW OF SJU. THE ODOR IN THE FLIGHT DECK ONLY AND WAS PERSISTED FOR THE DURATION OF THE FLIGHT. AFTER APU START AFTER LANDING, THE ODOR INTENSIFIED. TROUBLESHOT IAW TSM BD500-A-J21-22-00-04AAA-423A-A, NO DEFECTS FOUND. RAN BOTH ENGINES & APU & FOUND NO ODOR. WHEN WE OPENED FWD LAV DOOR, FOUND A PINE TREE AIR FRESHENER THAT DESCRIBES THE ODOR DESCRIPTION OF THE PILOTS INSIDE THE COCKPI

FLT 561, BOS-SJU. LEVEL ONE FUME/ODOR EVENT, DESCENT AT 15,000 FT, A MAGIC MARKER, CHEMICAL ODOR IN COCKPIT. THE ODOR ISOLATION PROCEDURE ACCOMPLISHED, THE ODOR DISAPEARED IN 5 MINUTES. COMPLIED WITH INFORMATION NOTICE 2017-TO15, SECTION A, ISOLATED FAULT TO TYPE 10, AMBIENT AIR MISCELLANEOUS ODOR IAW TSM 05-50-00-810-085A/ & TSM 05-50-00-810-085B. ALSO INSPECTED APU NO EVIDENCE OF LEAKS. ACFT OK FOR SERVICE.

DURING ENGS START, APU DRAW REACHED 1100 AMPS MOMENTARILY & REMAINED ABOVE 700 FOR THE DURATION OF PROCESS WHILE BATTERIES BARELY CONTRIBUTED TO START. AFTER SEQUENCE FINISHED, ELECTRICAL SYNOPTIC SHOWED BOTH MAIN GENS GEN OFF & APU GEN OFF. EICAS PRESENTED DC GEN OFF, DC GEN OFF APU, CHECK DOORS, NOSE DOOR OPEN L, FLAPS FAIL. PAX & CREW DETECTED A DISTINCTIVE ODOR LIKE ELECTRICAL NATURE. REMOVED INTERNALLY MELTED STARTER/GEN AND INSTALLED OVERHAULED STARTER/GEN IAW AMM 80-10

SHIP 8117 RETURNED TO SAT DUE TO ODOR IN CABIN. FOUND OIL IN #2 SPINNER. REPLACED SEAL REF PW1000G-A-72-00-11. WHILE PERFORMING P-TRAK PROCEDURE PER WORK CARD 0550-2001, FOUND PARTICULATE MATTER READINGS INCONCLUSIVE TO DEFINITE SOURCE. DUE TO HISTORY ON #1 ENGINE BLEED, LOCKED OUT #1 ENG HPV AND PRSOV. INSPECTED APU, #1 AND #2 BLEED AIR DUCTS, NO OIL NOTED. OK FOR SERVICE. (LP# 8057120, 8057118)

Wednesday December 17th, 2025 A Delta Air Lines flight landing in Texas requested emergency services Tuesday morning after reports of an “unknown odor or fumes” inside the cabin. When the aircraft arrived, five individuals reported falling ill.

PACK 1 FAIL AT ALTITUDE, RIGHT BEFORE FAILURE STRONG SMOKE SMELL, RAN QRH AND PACK FAILED 3 MINUTES AFTER ODOR DISSIPATED AFTER PACK FAIL FOLLOWING WORKSCOPE REQUEST AND FIM TASK 21-20-00-810-801-A PACK 2 OPERATING NORMALLY WITH NO NOTICEABLE SMELL PER EMB170 AMM 21-22-00. ALSO PERFORMED ENGINE AND APU RUNNS WITH CREW. SMELL FOUND TO BE FROM PACK 1 REF LG PG 102801409 ITEM 1 FOR DISCREPANCIES NOTED

VERY STRONG "DIRTY SOCKS" ODOR SMELLED IN CABIN BEFORE LANDING. FLIGHT DECK SMELLED VERY STRONG JUST AFTER LANDING. TURNED OFF BOTH ENGINE BLEEDS AND ODOR QUICKLY DISSIPATED. PREFORMED WORKCARD 0550-2001 UP TO STEP 8. PERFORMED P-TRK TEST ON #1 AND #2 ONLY AT IDLE. (761853) NO SMELLS NOTED 761853 C/W JIC 0550-2001 & 2003 AND NO GO ODI- FOUND #1 ENG SOURCE OF FUMES- PREFORMED HI-POWER PURGE RUN AND DECONTAMINATION -ODOR LESS AND #UNDER 1K ON P-TRAK. PER MCC LOCK OUT #1 ENG BLE

PACK 2 OVERHEAT IN FLIGHT. BURNING SMELL COMING FROM VENT. DURING TROUBLESHOOTING PACK SYSTME FOR BURN SMELL AND OVERHEAT FOUND PACK #1 ACM LOCKED UP. FOUND LOOSE CLAMP ABOVE GRATE #2 PACK EXHAUST GRATE AND UPPER OUTLET DUCT INSULATION NEED TO BE SECURE. REMOVED AND REPLACED PACK #1 ACM. REMOVED AND REPLACED #2 EXHAUST HEAR EXCHANGER DUCT. OPS AND LEAK CHECK SAT FOR #1 PACK AND #2 PACK. NO SMOKE SMELL NOTED IN THE COCKPIT, NO OIL SMELL AND NO BURNT SMELL NOTED.

FUEL & CHEMICAL FUMES AT 3L/3R DURING DEPARTURE AFTER CREW AND FLIGHT ATTENDANT DEBRIEF. ODOR WAS DESCRIBED AS CHEMICAL / FUEL ON TAKEOFF ROLLOUT. ODOR CONT & WAS ON / OFF. REDUCED & INCREASED, UNTILL RETURN. THE CHEMICAL / FUEL ODOR MOST PROMINANT BTWN DOORS 3L, 3R BACK TO AFT GALLEY. NO SMOKE PRESENT. REF. AMM TEST NO. 13 TAKE-OFF POWER TEST TASK 71-00-00-715-223-R03. PERFORMED HIGH POWER RUN AT TO FOR 30SEC & 80% N1 FOR 5 MINS WITH APU BLEED OFF, NR 1 & 2 ENG BLEEDS ON & B

BURNING ELECTRICAL ODOR OBSERVED AFTER T/O APPRO X. 15K FEET. L ASTED ABOU T A MIN. CREW STATES BURNING SMELL ONLY IN THE COCKPIT DURING TO, LASTED APROX 90 SECS AND WENT AWAY. ODOR REPORTING SHEET LEFT IN COCKPIT. TROUBLESHOOTING SYSTEM REVEALED ACM FAILURE ON PACK 1. REPLACED ACM ON LP 7278665. PACK 1 OVHT AFTER LANDIN G REF TSM 21-61-00-810-801-A, FOUND THERE IS NO AIRFLOW AT PACK 1 RAM-AIR OUTLET. PERFORMED GROUND SCAN, P1 AIR CYCLE MACH CHECK MSG IS PRESENT. SUSPECT BAD

(AIRCRAFT NOT GROUNDED) WET SOCK SMELL DTETECTED BY BOTH PILOTS AND FORWARD FLIGHT ATTENDANTS DESCENDING THROUGH 10,000 FT / REF LP 2105481 FOR WORK PREFORMED COMPLEATED TASK CARD 21-000-002 NO DEFECTS FOUND THIS ACTION CLEARS MEL 49-10-01A MDDR 223906 PLACKARDS REMOVED. PERFORMED TASK CARD A32X-21-000-001 UP TO STEP 3 A (4) NO SMELL NOTED WITH ISOLATION OF BOTH PACKS. SMELL DUPLICATED RUNNING BOTH PACKS WITH APU. PREFORMED TASK CARD 21-000-002

DURING FLIGHT, CREW NOTICED A WHISTLING SOUND AND ODOR ENROUTE. AS FLIGHT PROGRESSED, CREW AND PAX NOTICED SMOKE. WE SWITCHED FROM ENGINES TO APU BLEED AND IT IMPROVED TO NORMAL. AS WE CONTINUED ON APPROACH, THE WHISTLING STARTED AGAIN ON APU AIR. ECS SYSTEM DISPLAYED A PACK ABNORMAL CONDITION. CORRECTIVE ACTION: TROUBLE SHOT TO A SEIZED ACM. REMOVED ACM IAW AMM 21-52-13. PER CUSTOMER REQUEST REPLACED BOTH OZONE CONVERTERS. REMOVED UPPER OZONE CONVERTER AND REPLACED WITH INSP

FUME EVENT, AIRCRAFT WAS DEICED YESTERDAY MAYBE TWICE, PACK 1 IS GIVING OFF A MODERATE DEICE FLUID ODOR REGARDLESS IF ENGINE OR APU IS RUNNING. THE PACK 1 FUMES CHECK LIST WAS PERFORMED, PACK 1 WAS TURN OFF ODOR DISAPPEARED. ODOR WAS ISOLATED TO THE FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED. -PERFOMED AAM 21-00-00-615-802-A, LEVEL A DECONTAMINATION OF ECS. USED AEROLYZER IAW STEP 4B(13)(A). NO ODOR PRESENT. R &R RECIRCULATION FAN FILTERS IAW AMM 21-21-