Service difficulty report · Potentiometer · Dorner DO228202

Difficulty date
July 17, 2008
Submitted
November 3, 2008
Operation
General aviation
Make and model
Dorner DO228202
Aircraft time
18,370 hours
Engine
Garrtt TPE331*
Part
Potentiometer
Part number
176SF2DT102W0162
Condition
Malfunctioned
Location
Steering
Part time
7 hours
Stage of operation
TO
How discovered
O
Nature of condition
H
Precautionary procedure
C

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

What was found

(CAN) ON TAKE OFF ACFT ROTATED PILOT FELT SOMETHING ABNORMAL IN RUDDER PEDALS, SELECTED GEAR UP , GEAR HANDLE WOULD NOT MOVE, PILOT OBSERVED GEAR HANDLE LOCK STILL IN PLACE. ACFT FLOWN BACK TO BASE , PILOT DID A LOW FLYBY WHERE IT WAS CONFIRMED THAT THE NOSE GEAR STEERING WAS ALL THE WAY TO THE LT. ACFT LANDED SAFELY UPON NOSE TOUCHED DOWN IT CENTERED ITSELF AND WAS TAXIED BACK USING ENGINE DIFFERENTIAL POWER. UPON FURTHER INVESTIGATION IT WAS FOUND THAT THE STEERING POTENTIOMETER HAD FAILED CAUSING THE NOSE GEAR TO GO LT DISENGAGING THE NOSE GEAR STEERING NOT ALLOWING THE NOSE GEAR CENTERING SWITCH TO CENTER GEAR FOR GEAR RETRACTION.