What happened
Following an initial touchdown, the pilot aborted the landing attempt and executed a go-around. During the second landing attempt, the left main landing gear collapsed, causing the aircraft to exit the runway and strike runway lights.
During the event, a fuel leak occurred under the left wing. This leaking fuel came into contact with a hot wire from the damaged runway lights, which ignited a post-accident fire.
The investigation
The investigation focused on the structural integrity of the landing gear and the aircraft's maintenance history. At the time of the most recent annual inspection, the airframe had accumulated 15,522.7 hours. A review of the maintenance records showed no evidence of uncorrected defects or previous anomalies.
Mechanical examination of the left main landing gear revealed that the trunnion had fractured due to an overload. Investigators found no microscopic anomalies within the trunnion material itself.