# SDR NOCA 12011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2011
- Submitted: December 23, 2011
- Operation: Air carrier
- Aircraft: [N754NA](https://openairdocs.org/aircraft/N754NA), registered now
- Make and model: Boeing 757-28A
- Registry model: [Boeing 757-28A](https://openairdocs.org/model/boeing-757-28a) (OpenAirDocs)
- Aircraft serial: 29381
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32143069
- Part serial: 1327C
- Condition: Inoperative
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NOCA%2012011

## Discrepancy

DURING FLIGHT EICAS MESSAGE (R) ENGINE BLEED OFF DISPLAYED, ENGINE BLEED OFF LIGHT ON WITH ENGINE RUNNING, DUCT PRESSURE WAS NORMAL, (AIR TURNBACK).  REMOVED AND REPLACED NR 2 ENGINE PRSOV IAW B757 AMM 36-11-02, OPS CHECK AND LEAK CHECK GOOD.

---
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.