# SDR ASAA1159819

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2011
- Submitted: June 14, 2011
- Operation: Air carrier
- Aircraft: [N597AS](https://openairdocs.org/aircraft/N597AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35689
- Aircraft time: 11,796 hours, 3,832 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32145525
- Part serial: 10639
- Condition: Failed
- Location: Bleed Air Sys
- Part time: 11,796 hours, 3,832 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1159819

## Discrepancy

PERFORMED NR 2 ENGINE BLEED AIR HEALTH CHECK.  PRSOV AND HIGH STAGE VALVE FAILED.  NR 2 PRSOV REPLACED AND INSTALLATION TEST GOOD IAW B737NG MM 36 11 04.  NR 2 HIGH STAGE VALVE REPLACED AND INSTALLATION TEST GOOD IAW B737NG MM 36 11 08.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.