# SDR DALA2026010600116

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2026
- Submitted: January 6, 2026
- Operation: Air carrier
- Aircraft: [N553NW](https://openairdocs.org/aircraft/N553NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26500
- Aircraft time: 64,729 hours, 28,887 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Sensor
- Condition: Dirty
- Location: Zone 800
- Stage of operation: NR
- 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/DALA2026010600116

## Discrepancy

LEFT AFT ENTRY DOOR EICAS MSG ILLUMINATED MOMENTARILY ON T/O ROLL ABOVE 80 KTS.   T/S IAW FIM 52-71-00-815-802. CLEANED PROXIMITY SENSORS FOR L4 DOOR AND PERFORMED BITE TEST OF PSEU PER B757 FIM 32- 09-03. (8374702)

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