Service difficulty report · Servo · Boeing 737890

Difficulty date
February 1, 2014
Submitted
February 3, 2014
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
21,001 hours, 6,525 cycles
Part
Servo
Part number
305RAA1
Part serial
AS08879
Condition
Failed
Location
Autothrottle
Part time
2,491 hours, 787 cycles
Stage of operation
TX
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

AUTO THROTTLE WILL NOT ARM ON GROUND. ACFT GROUNDED. ACCOMPLISHED FLIGHT FAULT REVIEW AND ASM-1 LOGGED AS FAULT. REPLACED ASM-1, REF AMM 22-31-91-400-801, OPS NORMAL. GROUND VERIFICATION SUCCESSFUL IAW MM 22-31-00-710-802.