Service difficulty report · Autothrottle Sys · Boeing 737890

Difficulty date
July 26, 2014
Submitted
July 29, 2014
Operation
Air carrier
Aircraft
N594AS
Make and model
Boeing 737890
Aircraft serial
35191
Aircraft time
24,499 hours, 7,537 cycles
Part
Autothrottle Sys
Condition
Malfunctioned
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AUTOTHROTTLES DISENGAGED DURING TAKEOFF, WOULD NOT REENGAGE. ACFT GROUNDED. A/T BITE SHOWS ASM2 RATE MONITOR FAULT PREVIOUS FLIGHT. RAN SERVO TEST NUMEROUS TIMES, ALL PASSED. NO HISTORY PAST 90 DAYS REF MM 22-31-00. ACFT RETURN TO CATIIIA AUTOLAND & HGS QUALIFIED, STATUS SCREW REFLECT SAME.