# SDR DALA2026030901622

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2026
- Submitted: March 9, 2026
- Operation: Air carrier
- Aircraft: [N550NW](https://openairdocs.org/aircraft/N550NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26497
- Aircraft time: 64,334 hours, 27,775 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Indicator
- Condition: Inoperative
- Location: Zone 800
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026030901622

## Discrepancy

SHIP 5650 KNUCKLE KNOCKER ON 3R WILL NOT EXTEND OUT WHEN DOOR ARMED. CORRECTIVE ACTION: PERFORMED OPS TEST OF 3R DOOR AND CLEANED DEBRIS REF B757 MM 52- 11. NO DEFECTS NOTED. (8438202)

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