Service difficulty report · Servo · Boeing 757222

Difficulty date
October 31, 2010
Submitted
November 15, 2010
Operation
Air carrier
Aircraft
N552UA
Make and model
Boeing 757222
Aircraft serial
26641
Aircraft time
7,656 hours, 20,630 cycles
Engine
Pwa PW2040
Part
Servo
Part number
S253T4094
Part serial
89
Condition
Malfunctioned
Location
Autothrottles
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

ON TAKE OFF RT THROTTLE, STOPPED AT 1.33 EPR HAD TO FORCE THROTTLE TO T/O EPR. CONSULTED WITH ENG CONTROLLER, ADVISED TO DEFER AUTOTHROTTLE SYS. OPERATED THROTTLES TO FIREWALL, NO BINDING FELT. FOUND THRUST REVERSER INTERLOCK ACTUATOR IN EXTENDED POSITION, REPLACED IAW AMM. ALSO REPLACED AUTOTHROTTLE SERVO IAW AMM.