Service difficulty report · Autothrottle Sys · Boeing 737890

Difficulty date
November 13, 2009
Submitted
November 16, 2009
Operation
Air carrier
Aircraft
N519AS
Make and model
Boeing 737890
Aircraft serial
36482
Aircraft time
2,896 hours, 869 cycles
Part
Autothrottle Sys
Condition
Malfunctioned
Stage of operation
CL
How discovered
O
Nature of condition
F, J
Precautionary procedure
O

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

What was found

AUTO THROTTLES DISENGAGED ON CLIMB-OUT WOULD NOT REENGAGE. ACFT GROUNDED. RESET SYSTEM OPS CHECK GOOD IAW FIM 22-11 TASK 802 LRU REPLACEMENT TEST FOR AUTOTHROTTLES. CHECKED HISTORY BACK TO AUGUST 1 2009 AND FOUND NO OTHER AUTOTHROTTLE WRITE UPS.