# SDR ASAA2014070308449

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2014
- Submitted: July 8, 2014
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 28,856 hours, 8,725 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Bleed Valve
- Part number: 32145526
- Part serial: 2789
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 55,377 hours, 27,902 cycles
- Stage of operation: CL
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014070308449

## Discrepancy

DURING CLIMBOUT WITH BOTH AC PACKS IN AUTO, LEFT BLEED DUCT READ 43PSI RT PACK 20 PSI. ACFT GROUNDED.  PERFORMED NR 1 ENG & NR 2 ENG BLEED AIR HEALTH CHECK REF T/C NG-36WC-0001. FOUND NR 1 ENG PRSOV HAD INTERNAL LEAKAGE.  REPLACED LT ENGINE PRSOV REF AMM 36-11-04 OPS AND LEAK CHECK GOOD.  FOUND NR 2 ENG PCV FAILS TEST F CONTROL PRESSURE REGULATION.  REPLACED NR 2 ENG PCV, OPS & LEAK CHECKED GOOD IAW AMM 36-12-02 ACCOMPLISHED STEP F ON TASK CARD NG-36WC-0001, PCV TESTS ALL PASSED.  PERFORMED AMM TASK 36-11-00, ENG BLEED AIR CROSS OVER TEST & ALL PARAMETERS NORMAL.

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