Service difficulty report · Servo · Boeing 737890

Difficulty date
June 20, 2016
Submitted
June 22, 2016
Operation
Air carrier
Aircraft
N560AS
Make and model
Boeing 737890
Aircraft serial
35179
Aircraft time
37,850 hours, 11,435 cycles
Part
Servo
Part number
305RAA1
Part serial
AS05891
Condition
Failed
Location
Autothrottle Sys
Part time
25,545 hours, 8,013 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

AUTOTHROTTLES WILL NOT STAY ENGAGED, TRIED ON TAKEOFF AND AGAIN DURING CLIMB. ACFT GROUNDED. R & R ASM-1 IAW AMM 22-31-91, OPS NORMAL. PERFORMED A/T SYSTEM, OPS TEST IAW AMM 22-31-00, OPS NORMAL. ETOPS GROUND VERIFICATION SUCCESSFUL.