Service difficulty report · Spur Gear · Mtsbsi MU2*

Difficulty date
November 19, 2018
Submitted
January 22, 2020
Operation
General aviation
Aircraft
N40KC
Make and model
Mtsbsi MU2*
Aircraft serial
322
Engine
Garrtt TPE331*
Propeller
Hartzl HCB4TN5
Part
Spur Gear
Part number
8968841
Part serial
P3421C
Condition
Fractured
Location
Gearbox
Component
Torque Sensor · Honeywell
Component part number
31017263
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

GEAR PN 896884-1 APPARENTLY FRACTURED AT THE KEYWAY ALLOWING THE MAIN SHAFT DRIVE TO THE FUEL CONTROL DRIVE TRAIN TO BECOME DISENGAGED CAUSING AN UNCOMMANDED ENGINE SHUTDOWN DUE TO LACK OF FUEL.