# SDR FDEA201509303007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2015
- Submitted: September 30, 2015
- Operation: Air carrier
- Aircraft: [N971FD](https://openairdocs.org/aircraft/N971FD), registered now
- Make and model: Boeing 757-28A
- Registry model: [Boeing 757-28A](https://openairdocs.org/model/boeing-757-28a) (OpenAirDocs)
- Aircraft serial: 26277
- Aircraft time: 457 hours, 14,327 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: 251N32481
- Condition: Leaking
- Location: Hydraulic Sys
- Stage of operation: DE
- 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/FDEA201509303007

## Discrepancy

LEFT HYD SYS LEAK & LOW FLUID FAILURE.  SEVERAL ASSOCIATED EICAS & STATUS MSGS.  LT HYD QTY WENT TO .12, FOLLOWED BY A LT QTY LOW EICAS MSG, LT RESERVOIR PSI LIGHT, SHUT PUMPS OFF UNTIL LANDING.  ADDED 4 GALLONS TO LT HYD RESERVOIR, PRESSURIZED LT SYS, ISOLATED LEAK TO FWD STAB AREA AROUND THE ELEVATOR PRESSURE REDUCER & BYPASS VLVS IAW AMM 27-31-13-4.  FOUND VALVE HYD PRESSURE REDUCER LEAKING.  R & R ELEVATOR BYPASS VALVE, LEAK CHECKED GOOD.

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