Service difficulty report · Actuator · Boeing 747422

Difficulty date
October 17, 2012
Submitted
October 22, 2012
Operation
Air carrier
Aircraft
N104UA
Make and model
Boeing 747422
Aircraft serial
26902
Aircraft time
61,149 hours, 7,116 cycles
Engine
Pwa PW4056
Part
Actuator
Part number
65B0150211
Part serial
PHO113
Condition
Damaged
Location
Rt Blg
Stage of operation
IN
How discovered
O
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

RIGHT BODY GEAR RETRACT ACTUATOR PISTON THREADED END WHERE ROD END ATTACHES HAS A GAP AND IS MISSING THREADS (THREADED MATERIAL FELL INSIDE ROD END). DEPRESSURIZED HYD NR 1, 4 SYSTEM. DISCONNECTED 3 LINES FROM BODY ACTUATOR. CAPPED LINES. COMPLETED REMOVAL & INSTALLED ACTUATOR PER MM. PERFORMED LEAK CHECK. NO LEAKS NOTED.