# SDR AALA20150216001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2015
- Submitted: February 17, 2015
- Operation: Air carrier
- Aircraft: N179AA
- Make and model: Boeing 757223
- Aircraft serial: 32397
- Aircraft time: 42,250 hours, 12,320 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Valve
- Condition: Stuck
- Location: Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150216001

## Discrepancy

AIR INTERRUPT, RETURNED & EMER DECLARED.  LANDING UNEVENTFUL & ACFT OVERWEIGHT.  DURING CLIMB NR 1 ENG HIGH STAGE ILLUMINATED ON ROTATION, FOLLOWED BY NR 1 ENG OVERHEAT LIGHT COMING ON THROUGH CLIMB.  FOUND HIGH STAGE VALVE STUCK IN OPEN POSITION & HPSOV PITOT VALVE FAULTED.  R & R HIGH STAGE VALVE IAW AMM 36-11-07.  ACCOMPLISHED HIGH POWER ENG RUN WITH NO FAULTS NOTED.  SYS CHECKED NORMAL.

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