# SDR UALA2010072202626

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2010
- Submitted: July 23, 2010
- Operation: Air carrier
- Aircraft: N596UA
- Make and model: Boeing 757222
- Aircraft serial: 28749
- Aircraft time: 49,038 hours, 13,669 cycles
- Engine: Pwa PW2037
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: S212N1023
- Part serial: 58
- Condition: Malfunctioned
- Location: Bleed Air Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010072202626

## Discrepancy

LT PACK & ENG BLEED ISSUES, RTFL.  LT PACK WOULD NOT OPERATE NORMALLY AND CREW NOTICED LT ENG BLEED WOULD COME ON.   WHILE ACCOMPLISHING PNEUMATIC HEALTH CHECK, FOUND PRSOV REGULATOR BAD, REPLACED PRSOV REGULATOR.

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