# SDR UALA2011050202146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2011
- Submitted: May 5, 2011
- Operation: Air carrier
- Aircraft: [N211UA](https://openairdocs.org/aircraft/N211UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30217
- Aircraft time: 39,125 hours, 8,604 cycles
- Engine: Pwa PW4077
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Controller
- Part number: 11511007
- Part serial: 120
- Condition: Faulty
- Location: Rt Engine
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011050202146

## Discrepancy

BLEED HPSOV RIGHT ENGINE BLEED HIGH PRESSURE SHUTOFF VALVE (HPSOV) FAILED OPEN OR CLOSED, OR RIGHT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE.  STATUS  MSG01- LATCHED TAKEOFF ROLL MODE DEPENDENT; HIGH PRESSURE SHUTOFF VALVE (RIGHT) FAILED OPEN.  DB- AIR SUPPLY & CABIN PRESSURE CONTROLLER (R) MSG-3610370 LATCHD TO MODE.  REPLACED RIGHT CONTROLLER.  IDLE RAN ENGINE, NO FAULTS NOTED.

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