# SDR ASAA2015050211608

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2015
- Submitted: May 5, 2015
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41732
- Aircraft time: 9,427 hours, 3,023 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 32144464
- Part serial: 14578
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 9,427 hours, 3,023 cycles
- Stage of operation: CL
- 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/ASAA2015050211608

## Discrepancy

DURING CLIMBOUT, LT DUCT PRESSURE READ 41, RT DUCT PRESSURE 22, AT TOP OF CLIMB AND POWER IN CRUISE SETTING RT PACK 21, LT PACK 44, 2 HOURS INTO FLIGHT RT 40, LT PACK 42. ACFT GROUNDED. TASK CARD COMPLIED WITH.  REPLACED NR 2 ENGINE PRECOOLER CONTROL VALVE REF AMM 36-12-04/401.  REPLACED NR 2 ENGINE HIGH STAGE VALVE REF AMM 36-11-06/401.  OPS CHECK GOOD, LEAK CHECK GOOD.

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