# SDR CALA9900144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N14120](https://openairdocs.org/aircraft/N14120), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27562
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Pin
- Part number: 140N27411
- Condition: Sheared
- Location: R4 Door
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9900144

## Discrepancy

THE DOOR ASSIST BOTTLE BLEW DUE TO R-4 DOOR TRIGGER FORK NOT DISENGAGING AND TRIGGER FORK SHEARED AT ROLL PIN, DURING C-CHECK PASSENGER DOOR EMERGENCY MECHANISM OPERATIONAL CHECK.  THE R-4 DOOR TRIGGER FORK AND ROLL PIN WERE REPLACED.  OPERATIONAL CHECK OF R-4 DOOR EMERGENCY MECHANISM WAS GOOD IAW MM 52-11-32.

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