What was found
AIRCRAFT WAS GROUNDED: FUMES IN COCKPIT AND CABIN DURING DESCENT FROM FL190 TO ABOUT 2000 SMELLS LIKE MUSTY SOCKS. REMOVED AND REPLACED APU MAGNETIC DRAIN PLUG SEAL. PEER AMM 49-91-81.
- Difficulty date
- January 14, 2024
- Submitted
- January 16, 2024
- Operation
- Air carrier
- Aircraft
- N954NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31197
- Aircraft time
- 28,337 hours, 11,513 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Seal
- Part number
- UNKNOWN
- Condition
- Leaking
- Location
- Zone 200 - Fuse
- Stage of operation
- DE
- 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.