Incident
A crew conducting a local training mission at night in poor weather conditions misjudged the distance to the preceding aircraft. The cockpit base of their aircraft struck the top of the preceding aircraft's tail, causing the tail to penetrate the fuselage. The impact killed the captain instantly.
Aftermath
In panic, the copilot abandoned the aircraft using a parachute. The aircraft, now out of control, dove into the ground and crashed. The crash killed all six remaining crew members.
Investigation
The official investigation determined the probable cause of the accident to be crew error.