Service difficulty report · Servo · Boeing 737890

Difficulty date
November 11, 2012
Submitted
November 14, 2012
Operation
Air carrier
Aircraft
N536AS
Make and model
Boeing 737890
Aircraft serial
35203
Aircraft time
3,178 hours, 940 cycles
Part
Servo
Part number
305RAA1
Part serial
AS08061
Condition
Failed
Location
Throttle Stand
Part time
3,195 hours, 947 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AUTOTHROTTLE DISCONNECTED ON TAKE OFF ROLL JUST AFTER PASSING 100 KTS. AFTER TAKE OFF, AUTOTHROTTLE WAS AGAIN ENGAGED AND WORKED FOR REMAINDER OF FLT. CURRENT STATUS TESTED GOOD AND SERVO TESTED GOOD, BUT SYS HAS PREVIOUS WRITE-UP AND THERE IS AN ASM-1 FAULT IN FAULT R & R ASM-1 REF 22-31-91. OPS NORMAL REF.