Service difficulty report · Hydraulic System · Boeing 737*

Difficulty date
January 4, 2006
Submitted
January 7, 2006
Operation
Air carrier
Aircraft
N851AM
Make and model
Boeing 737*
Aircraft serial
29363
Aircraft time
6,282 hours, 3,325 cycles
Engine
Ge CFM56*
Part
Hydraulic System
Condition
Leaking
Stage of operation
TX
How discovered
O
Nature of condition
K, J
Precautionary procedure
D

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

What was found

CAPTAIN REPORTED THAT DURING TAKE OFF WHEN THE LANDING GEARS WAS RETRACTED, THE LT HYDRAULIC QUANTITY INDICATION FELT FROM 105 PERCENT TO 74 PERCENT; REDUCING DURING FLIGHT TO 67 AND REESTABLISHED IN GROUND TO 89 PERCENT; ADDITIONALLY, THE RF LIGHT TURNED ON AND THE LANDING GEARS RETRACTION TOOK MANY TIME. THE LT HYDRAULIC SYSTEM AND MAIN LANDING GEAR WERE VERIFIED BY LEAKS AND IT WAS REFILLED IAW MM 29-10-05 AND MM 12-13-01 RESPECTIVELY, ALL CORRECT. LATER, THE AIRCRAFT RETURNED TO PLATFORM, PSEU LIGHT TURNED ON. THE PSEU BITE WAS PERFORMED AND FAILURE CODE(LEVER DN FAULT) WAS SHOWN. THE LANDING GEAR CONTROL LEVER WAS OPERATED IAW FIM 32-61 TASK 809, TESTED CORRECT.