NTSB Identification: CHI05LA071.
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Accident occurred Friday, February 11, 2005 in Fort Wayne, IN
Probable Cause Approval Date: 02/28/2006
Aircraft: Twin Commander Acft. Corp. 680V, registration: N688TM
Injuries: 3 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The airplane sustained substantial damage when a main landing gear failed to fully extend during landing. The pilot could not get a gear down and locked indication at his destination and returned to the departure airport. Troubleshooting efforts were unsuccessful in getting the main gear extended and a landing with the main gear not fully extended was performed at the departure airport. On-scene and post accident examinations could not duplicate or determine the malfunction.

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

The malfunction of the landing gear extension assembly during approach for undetermined reasons.

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