What was found
AIRCRAFT WAS GROUNDED: APU OFF DESCENDING THROUGH 10000, FLIGHT CREW NOTED A DIRTY SOCK SMELL IN FLIGHT DECK. (OPEN)
- Difficulty date
- February 19, 2026
- Submitted
- February 23, 2026
- Operation
- Air carrier
- Aircraft
- N921US
- Make and model
- Airbus A321231
- Aircraft serial
- 6523
- Aircraft time
- 32,691 hours, 13,297 cycles
- System (JASC)
- 2120 · Air Distribution System
- Part
- Unknown
- Condition
- Odor
- Location
- Cabin
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.