Service difficulty report · Servo · Boeing 737890

Difficulty date
May 25, 2013
Submitted
May 29, 2013
Operation
Air carrier
Aircraft
N518AS
Make and model
Boeing 737890
Aircraft serial
35693
Aircraft time
16,601 hours, 5,008 cycles
Part
Servo
Part number
305RAA1
Part serial
AS05050
Condition
Failed
Location
Autothrottle
Part time
7,178 hours, 2,463 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 DISENGAGED ON CLIMB OUT WITH ACCOMPANING RED AUTOTHROTTLE LIGHT. QRH ACCOMPLISHED. AUTOTHROTTLE WOULD NOT STAY ENGAGED. ACFT GROUNDED. CONFIRMED FAULT, AUTOTHROTTLE BITE FAILS ASM NR 1. REPLACED NR 1 AUTOTHROTTLE ASM REF AMM TASK 22-31-91, OPS CK NORMAL, REF AMM 22-31-00/501.