Service difficulty report · Autothrottle Sys · Boeing 7879

Difficulty date
December 10, 2019
Submitted
December 13, 2019
Operation
Air carrier
Aircraft
N840AN
Make and model
Boeing 7879
Aircraft serial
40656
Aircraft time
4,052 hours, 414 cycles
Part
Autothrottle Sys
Condition
Malfunctioned
Stage of operation
NR
How discovered
O
Nature of condition
S
Precautionary procedure
O

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

What was found

AIRCRAFT NOT GROUNDED: PILOT REPORTS AUTO THROTTLE DISCONNECTED AFTER APPROX. 5 HOURS OF FLIGHT WITH CORRESPONDING AUTO THROTTLE DISC & AUTO THROTTLE R/H MESSAGES. AUTO THROTTLE R/H MESSAGE WENT OUT AFTER A FEW SECONDS BUT A/T REMAINED DISCONNECTED. WAS ABLE TO RE-ENGAGE A/T WITH NO OTHER OCCURENANCES. MAINTENANCE ACCOMPLISHED THRUST MANAGEMENT SYSTEM OPS CHECK IAW AMM 22-31-00, CHECKS NORMAL & NO FAULTS NOTED IAW AMM 22-31-00.

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