Service difficulty report · Actuator · Boeing 7377BX

Difficulty date
March 30, 2011
Submitted
April 1, 2011
Operation
Air carrier
Aircraft
N737KA
Make and model
Boeing 7377BX
Aircraft serial
30740
Aircraft time
23,648 hours, 15,893 cycles
Part
Actuator
Part number
251A12403
Part serial
6348
Condition
Leaking
Location
Spoiler
Part time
23,648 hours, 15,893 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING INSPECTION, THE NR 8 FLIGHT SPOILER ACTUATOR WAS FOUND STATICALLY LEAKING FROM THE INPUT LINKAGE ASSEMBLY. THE FLIGHT SPOILER WAS OPERATED WITH NO CHANGE TO THE LEAK RATE. THE ACTUATOR WAS REPLACED AND OPERATIONALLY CHECKED WITH NO LEAKS FOUND. THERE WAS NO MEASURABLE FLUID LOSS FROM THE HYDRAULIC SYSTEM.

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