# SDR ASAA2015041011296

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2015
- Submitted: April 13, 2015
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 31,876 hours, 9,722 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 32145526
- Part serial: 6343
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 45,620 hours, 18,158 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015041011296

## Discrepancy

NR 1 BLEED TRIP OFF LIGHT ILLUMINATED DESCENDING THROUGH 380.  ACCOMPLISHED BLEED TRIP OFF CHECKLIST.  LIGHT REMAINED ILLUMINATED.  ACFT GROUNDED.  ACCOMPLISHED T/C NG-36WC-00001. FOUND PCU VALVE & PRSOV FAILED. R & R PRECOOLER CONTROL VALVE REF AMM 36-12-02 OPS & LEAK CHECK GOOD.  R & R NR 1 ENGINE PRSOV REF AMM 36-11-04 OPS AND LEAK CHECK GOOD.  VERIFIED NR 1 ENGINE BLEED, OPS CK GOOD.

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