# SDR UALA2009122103957

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2009
- Submitted: December 31, 2009
- Operation: Air carrier
- Aircraft: N546UA
- Make and model: Boeing 757222
- Aircraft serial: 25367
- Aircraft time: 67,634 hours, 19,684 cycles
- Engine: Pwa PW2037
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Controller
- Part number: 33990046U2
- Part serial: 113
- Condition: Malfunctioned
- Location: Bleed Sys
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009122103957

## Discrepancy

LEFT ENGINE HIGH STAGE LT ILLUM & LT ENGINE HIGH STAGE EICAS MSG. FOUND HIGH CONTROLLER POPPED. REPLACED PILOT CONTROLLER. OP CHECKED NORMAL ON BLEED SHIFT RUN, BLEED PRESSURE NORMAL, NO FAULTS.

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