Service difficulty report · Actuator · Boeing 74747UF

Difficulty date
July 1, 2009
Submitted
July 8, 2009
Operation
Air carrier
Aircraft
N418MC
Make and model
Boeing 74747UF
Aircraft serial
32840
Aircraft time
28,942 hours, 4,321 cycles
Part
Actuator
Part number
1U11715
Part serial
5755AUV
Condition
Faulty
Location
Nlg
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

AT APPROX 20 TO 30 KIAS EVEN POWER SETTING, AIRCRAFT STARTED AN UNCONTROLLED TURN TO THE RIGHT. FULL LEFT RUDDER INPUT HAD NO EFFECT. ABORTED TAKEOFF. PER MCC REQUEST REPLACE RIGHT INBOARD AND OUTBOARD BODY GEAR STEERING ACTUATORS. REPLACED NR 9 AND 15 BRAKES, REPLACED RT NOSE TIRE. TAXI CHECKED AIRCRAFT, OPERATION CHECKED NORMAL.

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