# SDR ASAA2020072742931

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2020
- Submitted: July 27, 2020
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 51,263 hours, 15,315 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32145526
- Part serial: 10365
- Condition: Leaking
- Location: Nr 1 Engine
- Part time: 42,803 hours, 12,764 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020072742931

## Discrepancy

FOUND LEAKING PRSOV ON THE NR 1 ENGINE WHILE LEAK CHECKING 5TH STAGE CHECK VALVE.  GROUNDED - YES.  REMOVED AND INSTALLED A NEW LT ENGINE PRSOV IAW AMM 36-11-04-400-801. LEAK CHECKED GOOD.

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