# SDR 99UAL900278

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N573UA
- Make and model: Boeing 757222
- Aircraft serial: 26685
- Engine: Pwa PW2037
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 271N10586
- Condition: Leaking
- Location: Lt Hyd Sys
- Stage of operation: NR
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900278

## Discrepancy

LANDED AT PDX UNDER AN AMBER ALERT DUE TO LEFT HYDRAULIC SYSTEM LOSING FLUID.  FOUND LEFT ACMP LEAKING.  REPLACED PUMP.

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