# SDR 2007UALA04693

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2007
- Submitted: November 16, 2007
- Operation: Air carrier
- Aircraft: N521UA
- Make and model: Boeing 757222
- Aircraft serial: 24891
- Aircraft time: 56,647 hours, 21,062 cycles
- Engine: Pwa PW2037
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Door
- Condition: Malfunctioned
- Location: Pax O2 System
- Stage of operation: IN
- How discovered: C
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA04693

## Discrepancy

DURING AUTO DEPLOYMENT OF PASS O2 SYSTEM THE FOLLOWING DOORS DID NOT OPEN 14ABC, 14DEF, AND 16 DEF.                           



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