# SDR FDEA202602040147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2026
- Submitted: February 9, 2026
- Operation: Air carrier
- Aircraft: [N790FD](https://openairdocs.org/aircraft/N790FD), registered now
- Make and model: Boeing 757222
- Aircraft serial: 26693
- Aircraft time: 77,069 hours, 29,215 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Gust Lock
- Part number: 10N60081
- Condition: Failed
- Location: Zone 800
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202602040147

## Discrepancy

L1 DOOR GUST LOCK STUCK AND UNABLE TO CLOSE DOOR.   ON INSPECTION OF GUST LOCK AND COLLAR,  FOUND  COLLAR AND GUST LOCK INTACT AND OPERATIONAL.  WHEN DOOR WAS FULLY OPEN AGAINST FUSELAGE,  FOUND GUST LOCK COLLAR WOULD NOT DISENGAGE FROM  DOOR ASSIST SPLINE UNTIL DOOR WAS MOVED, OTBD  APROX 10' DEG BECAUSE IT IS AGAINST THE HOLD OPEN  LOCK. GUST LOCK COLLAR IS SPLINED TO THE DOOR ASSIST MECHANISM, SUSPECT DOOR ASSIST MECH. IS OUT  OF RIG. IAW AMM 52-11-01-6.  AFTER FURTHER INSPECTION OF THE L1 DOOR, FOUND THAT  THE BODY HINGE TORQUE TUBE WAS BEING ALLOWED TO MOVE AN EXCESSIVE AMOUNT DUE TO THE LOWER HINGE  LINK GUIDE ARM, CAM FOLLOWER PINS, NOT MAKING  CONTACT WITH THE STOP WHILE RIDING INSIDE THE UPPER & LOWER CAM PLATE. DISPLACED L1 DOOR GUIDE ARM.  COMPLETED INSTALL & ADJUSTMENTS OF GUIDE ARM, ALL  CHKD GOOD. DOOR HOLD OPEN LOCK STILL BINDS UP,  REMOVED AND INSPECTED SPLINES, FOUND CHUNKS OF OLD  BROKEN BRONZE FROM THE OLD LOCK STUCK IN SPLINED  AREAS NOT ALLOWING THE LOCK TO MOVE SMOOTHLY.  REMOVED AND THROUGHLY CLEANED SPLINED AREA AND  REINSTALLED NEW LOCK AND LUBRICATED, LOCK MOVES  SMOOTHLY NOW. ALL CHECKS FOR DOOR GOOD AT THIS  TIME. REVERSED MEL 52-11-01-A.

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