Date & Time: Dec 11, 1988 at 2000 LT
Type of aircraft:
Ilyushin II-76
Operator:
Registration:
CCCP-86732
Flight Type:
Humanitarian
Survivors:
No
Schedule:
Moscow – Leninakan
MSN:
0834 13388
YOM:
1978
Country:
Armenia
Region:
Asia
Crew on board:
9
Crew fatalities:
9
Pax on board:
69
Pax fatalities:
69
Other fatalities:
0
Total fatalities:
78
Circumstances:
The aircraft was on its way to Leninakan to drop soldiers, first aid, medics and goods for the victims of the recent earthquake. On final approach by night, the aircraft disappeared from the radar screens after it stroke the slope of a mountain located 15 km from the runway threshold. All 9 crew members and 68 of the 69 passengers were killed. A survivor was found among the debris (he was seating on the deck of a truck parked in the cargo compartment) but unfortunately died a day later.
Probable cause:
The accident was caused by an error on part of the crew who set a wrong altimeter pressure prior starting the descent to Leninakan (734 mm instead of 634 mm). This caused the aircraft to start the descent prematurely, dropping below the glide path and striking the mountain.