# SDR 2007UALA04865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2007
- Submitted: November 30, 2007
- Operation: Air carrier
- Aircraft: N531UA
- Make and model: Boeing 757222
- Aircraft serial: 25042
- Aircraft time: 55,652 hours, 20,662 cycles
- Engine: Pwa PW2037
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Bottle
- Condition: Low Pressure
- Location: L4 Door
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA04865

## Discrepancy

DOOR 4L DOOR ASSIST BOTTLE READS 2300 AT 70 DEGREES NEEDS SERVICE TO 3000.  DUE TO UNKNOWN LEAKAGE.  REPLACED BOTTLE.


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