Service difficulty report · Yaw Damper · Dhav DHC3

Difficulty date
May 27, 2013
Submitted
June 5, 2013
Operation
Air carrier
Aircraft
N320KT
Make and model
Dhav DHC3
Aircraft serial
73
Aircraft time
24,080 hours
Engine
Pwa PT6A34
Engine time
120 hours, 79 cycles
Propeller
Hartzl HCB3TN3
Part
Yaw Damper
Part number
1C753213
Part serial
1183B
Condition
Activated
Location
Autopilot Sys
Part time
45 hours
Component
Autopilot · Century · 2000
Component part number
1D9372130J163M38
Stage of operation
TO
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

AUTOPILOT WAS RECENTLY INSTALLED THAT HAD A YAW DAMPENER AS AN OPTION. UPON THE TAKEOFF ROLL, THE PILOT CLAIMS THAT THE YAW DAMPENER CAME ONLINE, UNCOMMANDED, CAUSING A LOSS OF DIRECTIONAL CONTROL.