Service difficulty report · Line · Boeing 757231

Difficulty date
March 18, 2009
Submitted
March 20, 2009
Operation
Air carrier
Aircraft
N711ZX
Make and model
Boeing 757231
Aircraft serial
28481
Aircraft time
38,864 hours, 13,591 cycles
Part
Line
Part number
312N310046
Condition
Cracked
Location
Hyd Press
Stage of operation
CR
How discovered
O
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

AFTER A COUPLE OF HRS AT CRUISE, LT HYD PUMP EICAS AND LT HYD QTY EICAS. QRH ACCOMPLISHED. FOUND LEFT ENG EDP LEAKING AND ON REMOVAL FOUND DRIVE SHAFT SHEARED FURTHER. LEAK CHECKS REVEALED LT PYLON HYD PRESSURE LINE LEAKING. REPLACED LT EDP AND ALL RELATED HYD FILTERS AND INSTALLED NEW PRESSURE LINE, OPS/LEAK CHK OK.