Service difficulty report · Autothrottle Sys · Boeing 737890

Difficulty date
December 2, 2014
Submitted
December 6, 2014
Operation
Air carrier
Aircraft
N590AS
Make and model
Boeing 737890
Aircraft serial
35687
Aircraft time
26,169 hours, 8,069 cycles
Part
Autothrottle Sys
Condition
Malfunctioned
Stage of operation
NR
How discovered
9
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 STAY ARMED. ACFT GROUNDED. AUTOTHROTTLE CURRENT STATUS TEST PASSED. RAN SERVO TEST NUMEROUS TIMES ALL PASSED REF MM 22-31-00. REVIEWED FLT HISTORY, ASM 1 RATE MONITOR ONLY SHOWS ON FLT LEG 15 WITH NO OTHER OCCURRENCE, NO HISTORY PAST 30 DAYS.