# SDR ASAA0853511

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2008
- Submitted: September 22, 2008
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 5,954 hours, 1,795 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 32144464
- Part serial: 6765
- Condition: Leaking
- Location: Nr 1 Engine
- Part time: 2,511 hours, 759 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0853511

## Discrepancy

NR 1 ENGINE HIGH STAGE VALVE LEAKS AT BODY.  REMOVED AND REPLACED NR 1 ENG HIGH STAGE VALVE IAW 737NG MM 36 11 06 000 801 STEP B&C AND MM 36 11 06 400 801 STEP E&F, PERFORMED W T W AAR 516368 D D 28DEC08, PERFORMED INSTALL TEST OF VALVE IAW 737NG MM 36 11 06 400 801 G, TEST GOOD COMPONENT VERIFIED ETOPS BY QC.

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