Service difficulty report · Control Unit · Boeing 737890

Difficulty date
April 17, 2008
Submitted
April 18, 2008
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
7,085 hours, 2,049 cycles
Engine
Cfmint CFM567B27
Part
Control Unit
Part number
2042M67P02
Condition
Malfunctioned
Location
Lt Engine
Stage of operation
CR
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

LEFTHAND ENGINE THROTTLE HAD UNCOMMANDED ADVANCE DISENGAGING THE AUTO THROTTLE. REPLACED ENGINE ELECTRONIC CONTROL.