What was found
AIRCRAFT WAS GROUNDED: 4L DOOR SHOWING CHECK DOOR PRESSURE ON FLIGHT ATTENDANTS PANEL UPON ARMING. MAINTENANCE SERVICED 4L DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-10-00.
- Difficulty date
- July 4, 2026
- Submitted
- July 8, 2026
- Operation
- Air carrier
- Aircraft
- N557UW
- Make and model
- Airbus A321231
- Aircraft serial
- 5269
- Aircraft time
- 43,853 hours, 18,048 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Bottle
- Condition
- Low Pressure
- Location
- Zone 800
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.