Date & Time: Apr 28, 1981 at 1231 LT
Type of aircraft:
Scheduled Revenue Flight
Batagay - Lazo
Crew on board:
Pax on board:
Aircraft flight hours:
The single airplane departed Batagay on a schedule service to Lazo with 10 passengers and two pilots on board. En route, the crew encountered poor weather conditions with low visibility and icing conditions. While cruising in low clouds at an altitude of 860 meters, the airplane struck the slope of a mountain located in the region of Lazo. The aircraft was destroyed upon impact and all 12 occupants were killed.
It was determined that weather conditions were slightly worse than forecast. The crew took the decision to continue the flight into a visibility that was below minimums when no visual contact with ground could be established. The copilot had a blood alcohol level of 1‰ which may have influenced his decisions and capabilities.