Service difficulty report · Controller · Boeing 777FS2

Difficulty date
August 5, 2021
Submitted
August 6, 2021
Operation
Air carrier
Aircraft
N860FD
Make and model
Boeing 777FS2
Aircraft serial
37731
Aircraft time
8,795 hours, 1,488 cycles
Part
Controller
Part number
75860004
Part serial
1156
Condition
Malfunctioned
Location
Mlg
Part time
26,659 hours, 4,386 cycles
Stage of operation
TO
How discovered
9
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

DURING POWER UP TO TAKEOFF TRUST ON RWY AT LES THAN 30 KTS, NOSE VEERED HARD LT. PERFORMED LOW SPEED REJECT. TRIED TO COUNTER WITH FULL RIGHT RUDDER, THEN FULL RT TILLER TO NO EFFECT. STOPPED AIRCRAFT ON LT OF RUNWAY AT 30 TO 40 DEGREES ANGLE. MAIN GEAR STEERING ALERT SHOWN. R & R MGSCU IAW AMM 32-53-02. OPS CHK OK. LT & RT TILLER TRANSDUCERS MATCH IN STEERING RANGE. STEERING ANGLE TRACKS TILLER INPUT WITH MAX OF 6.6 DEGREES, UNLOCKS & LOCKS. TILLER & RUDDER STEERING INPUT FEEL SMOOTH. PERFORMED GVI OF CABLE RUN, PULLEYS, INTERCONNECT MECHANISM, BROKEN CABLE COMPENSATOR, PIVOT LINKS, CENTERING MECHANISM, & SUMMING MECHANISM. NO DEFECTS NOTED. TAXI CHECKED WITH NO FAULTS.

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