NTSB Identification: CHI87DEX09.
The docket is stored on NTSB microfiche number 35978.
Accident occurred Tuesday, September 22, 1987 in SELLERSBURG, IN
Probable Cause Approval Date: 06/16/1989
Aircraft: de Havilland DRAGONFLY DH-90, registration: N190DH
Injuries: 1 Serious,2 Minor.

AIRCRAFT BEGAN LEFT DRIFT DURING TAKEOFF ROLL. PILOT CORRECTED WITH RIGHT RUDDER, AND AIRCRAFT VEERED SHARPLY RIGHT. AIRCRAFT DID NOT RESPOND TO APPLICATION OF LEFT RUDDER OR INCREASED THRUST FROM RIGHT ENGINE; DEPARTED RUNWAY AND CRASHED INTO DRAINAGE DITCH. PILOT NEVER ATTEMPTED TO ABORT TAKEOFF. INVESTIGATION REVEALED THAT THE RIGHT WHEEL BEARING INNER AND OUTER BUSHINGS HAD BEEN INTERCHANGED ALLOWING THE BRAKE/BACKING PLATE ASSEMBLY TO BIND ON THE WHEEL/DRUM ASSEMBLY. THE WHEEL BEARINGS HAD BEEN REPACKED ON THE LAST ANNUAL INSPECTION, 20 OPERATING HOURS PRIOR TO ACCIDENT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LANDING GEAR,NORMAL BRAKE SYSTEM..BINDING(MECHANICAL)

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE,ANNUAL INSPECTION..IMPROPER..OTHER MAINTENANCE PERSONNEL


Contributing Factors

TERRAIN CONDITION..DITCH


Contributing Factors

ABORTED TAKEOFF..NOT SELECTED..PILOT IN COMMAND

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