# SDR UALA2011082304504

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2011
- Submitted: September 16, 2011
- Operation: Air carrier
- Aircraft: N594UA
- Make and model: Boeing 757222
- Aircraft serial: 28145
- Aircraft time: 49,281 hours, 18,208 cycles
- Engine: Pwa PW2037
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Condition: Leaking
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011082304504

## Discrepancy

CREW REPORTS LEFT HYD DROPPED TO ZERO AND LEFT HYD SYS LOW PRESS LIGHT ILLUMINATED.  ACP'D FLT MANUAL CHECKLIST.  PTU IS OPERATING.  REPLACED NR 1 ENGINE MAIN SYSTEM PRESSURE HYD LINE IN PYLON, LEAK CHECK OKAY.

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