Service difficulty report · Actuator · Boeing 747422

Difficulty date
September 18, 2012
Submitted
October 26, 2012
Operation
Air carrier
Aircraft
N181UA
Make and model
Boeing 747422
Aircraft serial
25278
Aircraft time
87,987 hours, 10,677 cycles
Engine
Pwa PW4056
Part
Actuator
Part number
9110267
Part serial
15
Condition
Leaking
Location
Nr 7 Spoiler
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

EVIDENCE OF HYDRAULIC LEAK DRIPPING FROM RIGHT WING INBOARD FLAP TRACK CANOE. FLAP HANDLE AT 25 UNITS ALT FLAP SWITCH. HYD LEAK COMING FROM NR 7 SPOILER ACTUATOR RUNNING INBOARD INTO THE FLAP TRACK CANOE. LEAKING FROM END SEAL ON ACTUATOR WHERE CHROME EXTENDS. REMOVED NR 7 SPOILER ACTUATOR. COMPLETED INSTALLATION OF NR 7 SPOILER ACT IAW MM. LEAK AND OPS CHECK NORMAL.