# SDR UALA2008111302849

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2008
- Submitted: December 23, 2008
- Operation: Air carrier
- Aircraft: [N773UA](https://openairdocs.org/aircraft/N773UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26929
- Aircraft time: 51,526 hours, 10,559 cycles
- Engine: Pwa PW4077
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Sensor
- Part number: 11503221
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111302849

## Discrepancy

BLEED OFF ENG L LEFT ENGINE BLEED VALVE CLOSED FOR SYSTEM FAULT OR SWITCH OFF, AND THE ENGINE IS NOT SHUTDOWN.  ADVISORY MSG-3610500 LATCHD ER MODE  MSG-3610500 LATCHD ER MODE.  REPLACED DUAL TEMP SENSOR.  RAN MAT TEST CHECK GOOD, AND LEAK CHECK GOOD.

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