# SDR AALA202108179539

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2021
- Submitted: August 17, 2021
- Operation: Air carrier
- Aircraft: [N939AN](https://openairdocs.org/aircraft/N939AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30083
- Aircraft time: 58,999 hours, 24,620 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Sensor
- Condition: Faulty
- Location: L4 Door
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202108179539

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON TAKE OFF ROLL AFT MAIN CABIN ENTRANCE ILLUMINATED. LATER LIGHT EXTINGUISHED APPROXIMATELY 2000 MEAN SEA LEVEL FLIGHT ATTENDANT CHECKED HANDLE DOWN. REMOVED AND REPLACED L4 DOOR SENSOR PER AMM 52-71-11.

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