SDR DL757981775

Service difficulty report · Seal · Boeing 757232

Difficulty date: August 27, 1998
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N690DL
Make and model: Boeing 757232
Aircraft serial: 27585
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Seal
Condition: Torn
Location: Nr 1 Engine
Stage of operation: CR
Nature of condition: K, J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LT HYD QTY EICAS MSG, STATUS PAGE SHOWED FLUID DECREASING. RAN THROUGH LOSS OF FLUID PROCEDURE. COULD NOT ISOLATE TO ANY SINGLE PUMP. WITH BOTH PUMPS OFF FLUID QTY DECREASED TO .14. FOUND TORN SEAL ON LEFT ENG HYD PUMP. REPLACED SEAL, RAN ENG, LEAK CK LEFT HYD SYSTEM. INSPECTED FILTERS AND NO METAL FOUND.