STARTING AT 7000 FT, STRONG ODOR FROM PACK, SMELLS LIKE WET SOCKS. PILOT REPORT A FUME LIKE PACK OIL SMELL ONLY ON DECENT BELOW 10,000 FT SO STRONG,PILOT FELT LIKE PASSING OUT. SMELL ONLY IN COCKPIT & ONLY ON DECENT, FWD CARGO PIT AFT WALL LT SIDE REMOVED FOM. OLD RECIRC FILTER STILL INSTALLED, TSM 05-50-00-810-831 TO START TROUBLESHOOTING. REMOVED RECIRC FILTER TO EVALUATE CONDITION, FOUND DIRTY. RECIRCULATION FILTER IS MM 21-21-45. WITH APU RUNNING SELECTED PACK TEMP TO HOT & COLD WHICH DID NOT PRODUCE ODOR. REPLACED OZONE & PACK FILTERS IAW AMM 21-00-00-615-802-A. ACCOMPLISHED AMM 49-00-00-200-811-A UP TO BUT NOT INCLUDING STEP 4. F., NO DEFECTS OR FINDINGS TO REPORT. COMPLETED INSPECTION OF APU FROM STEP F.1 TO END REF MM 49-00-00-200-811-A, NO SIGNS OF OIL OR FUEL LEAKS.
| Incident date | August 4, 2025 |
|---|---|
| Airline | CALA |
| Flight | AT5000 |
| Aircraft | AIRBUS A321271NX |
| Registration | N14517 |
| Affected area | Cockpit |
| Event type | Fumes or Odor |
| Verification | Official |
Sources
- FAA SDR: CALA fumes or odor report on 2025-08-04 (external.apic4e.faa.gov)
- FAA SDR: CALA fumes or odor report on 2025-08-06 (external.apic4e.faa.gov)
This entry summarizes publicly reported information and links to the original reporting or official record. Details can change as authorities and operators release additional information.