# SDR DALA2015121407591

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2015
- Submitted: December 14, 2015
- Operation: Air carrier
- Aircraft: [N346BC](https://openairdocs.org/aircraft/N346BC), registered now
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 33959
- Aircraft time: 29,785 hours, 16,474 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Shutoff Valve
- Condition: Corroded
- Location: Apu Bleed
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2015121407591

## Discrepancy

APU BLEED AIR SHUTOFF VALVE HAS SURFACE CORROSION VIEWED THRU ACCESS DOOR 313AL RLO14.  R & R APU BLEED SHUTOFF VALVE IAW AMM 36-11 -10-401.  LEAK AND OPS CHECK DUE.  PERFORMED OPS AND LEAK CHECK OF APU BLEED SHUT OFF VALVE, OPS AND LEAK CHECK GOOD IN REF TO AMM 63-11-10-404-013.

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