What was found
DIRTY SOCK ODOR ON GROUND AT GATE FROM BOTH PACKS INDEPENDENTLY ON APU AIR. T/S PER FIM 49-50 FOUND OIL INSIDE THE APU PLENUM. R & R COELESSOR BAGS IAW AMM 21-54 OLD BAGS SMELLED LIKE OIL (8655364) (AIRCRAFT GROUNDED)
- Difficulty date
- June 4, 2026
- Submitted
- June 9, 2026
- Operation
- Air carrier
- Aircraft
- N937AT
- Make and model
- Boeing 717200
- Aircraft serial
- 55091
- Aircraft time
- 56,470 hours, 41,313 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil System
- Condition
- Leaking
- Location
- Zone 100
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- K, B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.