Service difficulty report · Hydraulic System · Boeing 737924ER

Difficulty date
February 14, 2020
Submitted
February 16, 2020
Operation
Air carrier
Aircraft
N77430
Make and model
Boeing 737924ER
Aircraft serial
37098
Aircraft time
37,747 hours, 13,006 cycles
Part
Hydraulic System
Condition
Low Pressure
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

A SYSTEM HYDRAULIC FAILED. BOTH A PUMPS LOW PRESSURE AD QUANTIT Y ZERO FOUND HYD LINE IN THE LEFT WHEEL WELL P/N# AS116-08-0260 FAILED. REMOVED AND REPLACED LINE OPS AND LEAK CHECKED GOOD. OK FOR SERVICE. REMOVED AND REPLACED CASE DRAIN FILTER, NO DEBRIS NOTED. ALSO SERVICED "A" SYSTEM TO WITHIN SERVICEABLE LIMITS.