Service difficulty report · Autothrottle Sys · Boeing 737890

Difficulty date
December 29, 2013
Submitted
January 2, 2014
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
20,647 hours, 6,417 cycles
Part
Autothrottle Sys
Condition
Malfunctioned
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

AUTOTHROTTLE DISENGAGED TWICE ON TAKE OFF ROLL, ABORTED TAKE OFF, LOWSPEED ABORT AT 10 KNOTS. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT. PERFORMED AUTOTHROTTLE SERVO MOTOR TEST MULTIPLE TIMES WITH NO FAULTS NOTED. PERFORMED AUTOTHROTTLE OPS TEST IAW MM 22-31-00-710-801 AND AUTOTHROTTLE SYS. SYSTEM TEST IAW MM 22-31-00-710-802. ALL TESTS PASS.