# SDR CALA2013121993818

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2013
- Submitted: December 19, 2013
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 82,614 hours, 23,658 cycles
- Engine: Pwa PW2037
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Bleed Air Sys
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013121993818

## Discrepancy

APU SOV INOPERATIVE.  APU BLEED STOPPED WORKING NOT SURE OF SOURCE OR BLEED LEAK.  PERFORMED APU PERFORMANCE CHECK, NO FAULT FOUND & PERFORMANCE CHECKED NORMAL IAW DIS 245.

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