# SDR UALA2011012700456

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2011
- Submitted: February 7, 2011
- Operation: Air carrier
- Aircraft: [N668UA](https://openairdocs.org/aircraft/N668UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30024
- Aircraft time: 42,165 hours, 11,369 cycles
- Engine: Pwa PW4056
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Controller
- Part number: 7927558
- Part serial: 113
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011012700456

## Discrepancy

LT ENG BLEED LIGHT AND HPSOV EICAS ON MOMENTARILY ON DESCENT AS THROTTLES MOVED TO IDLE.  REPLACED THE NR1 ENGINE HIGH PRESSURE CONTROLLER IAW MM.  OPS CHECKED ARE NORMAL.

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