# SDR UALA2010040501121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2010
- Submitted: April 7, 2010
- Operation: Air carrier
- Aircraft: [N670UA](https://openairdocs.org/aircraft/N670UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29240
- Aircraft time: 38,474 hours, 10,172 cycles
- Engine: Pwa PW4056
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Controller
- Part number: 77328915
- Part serial: 17
- Condition: Failed
- Location: Bleed System
- 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/UALA2010040501121

## Discrepancy

LEFT ENG BLEED LGT & LT ENG HPSOV EICAS MSG WITH ENG BLEED SW ON, & ENG RUNNING. COMPONENT FOUND DEFECTIVE. REPLACED HPSOV AND HP CONTROLLER. ACP'D BLEED SHIFT THREE TIMES, NO HPSOV EICAS MSG OR ENG BLEED LIGHT.

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