CABIN ODOR: UPON ENTERING AIRCRAFT WITH APU OFF, THERE IS A STRONG ODOR WHICH SMELLS JUST LIKE DIRTY COALESCER SOCKS. WITH APU RUNNING AND ALSO DURING CRUISE FLIGHT, THE BAD ODOR IS BLOWING OUT OF THE WEMAC VENTS. BAD ODOR IS IN COCKPIT AND CABIN. CORRECTIVE ACTION: REMOVED HEPA FILTER PN 9914836-1 SN 1287 AND INSTALLED NEW HEPA FILTER PN 9914836-1 SN 1478. RAN APU WITH BLEED AIR APPLIED FOR 20 MINUTES, SMELL OF ODER STILL PRESENT. PERFORMED ADDITONAL TWO APU RUNS WITH WARM AIR APPLIED, ODER IS STILL PRESENT. MCC REQUESTED TO RUN APU FOR ADDITIONAL 2 HOURS WITH HOT AIR APPLIED, FOLLOWING THIS, ODOR IS STILL PRESENT. PERFORMED ENGINE RUNS WITH ENGINE BLEED ON AND APU BLEED OFF AND THE ODOR IS NO LONGER PRESENT WITH ENGINES RUNNING. PLEASE REFER TO BARCODE T2PL6D00CJXWA FOR TROUBLESHOOTING OF THE APU. WORK PERFORMED IN ACCORDANCE WITH CESSNA MODEL 700 MM 21-70-10.
| Incident date | April 6, 2025 |
|---|---|
| Airline | DXTA |
| Flight | SN1287 |
| Aircraft | TEXTRN TEXTRON700 |
| Registration | N829QS |
| Affected area | Cockpit |
| Event type | Fumes or Odor |
| Verification | Official |
Sources
- FAA SDR: DXTA fumes or odor report on 2025-04-06 (external.apic4e.faa.gov)
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