Date & Time:
Nov 17, 1951 at 1623 LT
Type of aircraft:
Ilyushin II-12
Operator:
Registration:
CCCP-L1775
Flight Phase:
Takeoff (climb)
Flight Type:
Charter/Taxi (Non Scheduled Revenue Flight)
Survivors:
No
Schedule:
Novosibirsk – Moscow
MSN:
9 301 31 12
YOM:
21
Country:
Russia
Region:
Asia
Crew on board:
4
Crew fatalities:
4
Pax on board:
19
Pax fatalities:
19
Other fatalities:
0
Total fatalities:
23
Aircraft flight hours:
2007
Circumstances:
Due to the arrival of additional passengers coming from Yakutsk, a second flight was organized from Novosibirsk to Moscow. Snow falls all day and about 15 mm of ice accumulated on all aircraft. During taxiing, an additional layer of 8 to 10 mm of snow accumulated on the airplane. The takeoff run was considered as normal and after rotation, the airplane climbed to a height of about 100 meters and then stalled and crashed in a huge explosion about 900 meters past the runway end. The aircraft was destroyed by impact forces and a post crash fire and all 23 occupants were killed.
Probable cause:
It was determined that the aircraft was covered by ice and snow and that the following areas were polluted and contaminated by ice and snow: leading edges, trailing edges, ailerons, wings, fuselage, tail and stabs. In such conditions, the aircraft was unable to climb in a safely manner. The following findings were pointed out:
- The crew neglected some procedures referring to the flight preparation,
- The crew failed to check the aircraft prior to departure and failed to provide an appropriate deicing procedure,
- Poor flight preparation and organisation,
- Poor weather conditions,
- Lack of appropriate measures taken to clean the aircraft before takeoff.
- The crew neglected some procedures referring to the flight preparation,
- The crew failed to check the aircraft prior to departure and failed to provide an appropriate deicing procedure,
- Poor flight preparation and organisation,
- Poor weather conditions,
- Lack of appropriate measures taken to clean the aircraft before takeoff.
