Service difficulty report · O-Ring · Boeing 757222

Difficulty date
July 1, 2004
Submitted
July 27, 2004
Operation
Air carrier
Aircraft
N514UA
Make and model
Boeing 757222
Aircraft serial
24839
Aircraft time
46,286 hours, 17,543 cycles
Engine
Pwa PW2037
Part
O-Ring
Part number
NAS161212
Condition
Leaking
Location
Hyd Pump
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
H

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

What was found

HYDRAULIC QUANTITY DROPPED TO .47. TURNED OFF BOTH LEFT HYDRAULIC PUMPS TILL DESCENT AND LANDING. *S/D* CASE DRAIN MODULE O-RING FAILED. REPLACED O-RING.