# SDR ASMF201611019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2016
- Submitted: November 3, 2016
- Operation: Air carrier
- Aircraft: [N859AM](https://openairdocs.org/aircraft/N859AM), registered now
- Make and model: Boeing 737-8Q8
- Registry model: [Boeing 737-8Q8](https://openairdocs.org/model/boeing-737-8q8) (OpenAirDocs)
- Aircraft serial: 32796
- Aircraft time: 49,050 hours, 17,263 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32145525
- Part serial: 8627
- Condition: Leaking
- Location: Bleed Air Sys
- Part time: 38,522 hours, 17,251 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF201611019

## Discrepancy

AIRCRAFT RETURNED TO PLATFORM DUE TO DUCT PRESSURE LOW INDICATION IN THE RIGHT ENGINE, SHOWING 5 PSI.  MAINTENANCE PERSONNEL PERFORMED REVISION IAW 36-11-00, DETECTING A PNEUMATIC LEAK IN THE RIGHT ENGINE PRSOV.  THE RIGHT ENGINE PRSOV AND THE RIGHT PRECOOLER VALVE WERE REPLACED IAW AMM 36-11-04 AND AMM 36-12-03, TESTED CORRECT.

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