What was found
AIRCRAFT WAS NOT GROUNDED: 4R DOOR INDICATION IS INTERMITTENTLY "ARMED" IN FLIGHT. INDICATES ARMED ON THE GROUND. MAINTENANCE REPLACED THE 4R DOOR PROXIMITY SWITCH AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-71-11.
- Difficulty date
- January 22, 2026
- Submitted
- January 26, 2026
- Operation
- Air carrier
- Aircraft
- N411AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 9318
- Aircraft time
- 19,434 hours, 5,383 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Proximity Sensor
- Condition
- Intermittent
- Location
- Zone 800
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.