Accident Overview
During the takeoff roll, the airplane's main landing gear partially retracted and the nose landing gear collapsed completely. As a result, the airplane's left wing impacted the ground, causing structural damage. The airplane came to rest in an upright position on the runway. Both the pilot and the airplane's mechanic were able to exit the airplane unassisted.
Post-Accident Examination
Following the accident, an examination of the landing gear revealed that the mechanic had wired the landing gear squat switch incorrectly. This wiring error resulted in a retraction of the landing gear once the landing strut was extended.
Findings
The investigation identified that the incorrect wiring of the landing gear squat switch by the mechanic led to the untimely retraction of the landing gear during the takeoff roll. No other causal factors were identified.