# SDR 2001UALA01846

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2001
- Submitted: September 5, 2001
- Operation: Air carrier
- Aircraft: N504UA
- Make and model: Boeing 757222
- Aircraft serial: 24625
- Aircraft time: 39,760 hours, 15,278 cycles
- Engine: Pwa PW2037
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic System
- Condition: Leaking
- Location: Left
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001UALA01846

## Discrepancy

EICAS MESSAGE 'L HYD SYS PRESS' DISPLAYED. LEFT HYDRAULIC QUANTITY DECREASED TO 0.02, QUANTITY STABLE WITH PUMPS OFF.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.