# SDR DALA2017100207196

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2017
- Submitted: October 2, 2017
- Operation: Air carrier
- Aircraft: [N539US](https://openairdocs.org/aircraft/N539US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26486
- Aircraft time: 63,803 hours, 24,914 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Sensor
- Condition: False Indication
- Location: R4 Door
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017100207196

## Discrepancy

AT 1000 FT, DURING APPROACH, RT AFT ENTRY DOOR LIGHT CAME ON.  EXTINGUISH AT 500 FT.  REPLACED R4 DOOR WARNING SENSOR IAW AMM 52-71-00.  DOOR WARNING SENSOR OPS CHECKED GOOD.

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