# SDR UALA2012100505659

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2012
- Submitted: October 11, 2012
- Operation: Air carrier
- Aircraft: N520UA
- Make and model: Boeing 757222
- Aircraft serial: 24890
- Aircraft time: 71,995 hours, 26,967 cycles
- Engine: Pwa PW2037
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Door
- Condition: Obstructed
- Location: L4
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012100505659

## Discrepancy

DOOR 4L NOT ARMING CORRECTLY.  CLEANED OBSTRUCTION ON BOTTOM OF DOOR SILL, OPERATED DOOR SEVERAL TIMES, OKAY.

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