# SDR DALA2025080405820

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2025
- Submitted: August 4, 2025
- Operation: Air carrier
- Aircraft: [N550NW](https://openairdocs.org/aircraft/N550NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26497
- Aircraft time: 62,921 hours, 26,999 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Indicator
- Condition: Loose
- 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/DALA2025080405820

## Discrepancy

SHIP 5650 L1 DOOR "KNUCKLE KNOCKER" LOOSE. CORRECTIVE ACTION: REMOVED SLIDE BUSTLE AND MID LINER FOR ACCESS AND SAFETY PIN DOOR SLIDE. REMOVED KNUCKLE BUSTER PAN REF B757 AMM 51- 11-20. REMOVED AND REPLACED BOX ASSY. REINSTALLED MIDLINER AND UNPINNED DOOR SLIDE REF B757AMM 51-11-20. VERIFIED SLIDE PIN REMOVED AND STOWED. REINSTALLED SLIDE BUSTLE REF B757AMM 51-11. (7743388)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
