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Aeroflot Flight L-51

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Aeroflot Flight L-51
Accident
An Antonov An-24B similar to accident aircraft
Date	30 December 1967
Summary	Pilot error
Site	Near Liepāja International Airport, Liepāja, Latvian SSR
Aircraft
Aircraft type	Antonov An-24
Operator	Aeroflot
Registration	CCCP-46215
Flight origin	Riga International Airport
Destination	Liepāja International Airport
Occupants	51
Passengers	46
Crew	5
Fatalities	43
Survivors	8

Aeroflot Flight L-51 was a scheduled domestic passenger flight operated by an Antonov An-24 that crashed on approach to Liepāja International Airport on 30 December 1967, resulting in the death of 43 of the 51 people on board. To date, it is the deadliest aviation accident in Latvian history.^[1] The investigation revealed the cause of the accident to be pilot error.

Accident[edit]

Flight L-51 was a scheduled passenger flight from Riga to Liepaja. On approach to Liepāja International Airport the airliner entered the glide slope at a speed of 300 km/h and an altitude of 300 meters instead of the recommended 220 km/h at 200 meters. The aircrew elected to use reverse thrust to slow the too fast and high Antonov for landing but then declared a missed approach and attempted to go around. The crew increased the thrust of both engines and retracted the flaps and landing gear. The right engine began delivering forward thrust but the left engine was still in reverse thrust. The aircraft entered a roll to the left with rapidly decreasing altitude and struck the ground at a pitch angle of 0 degrees 250 meters left of the approach path in a snow-covered field. Because the landing gear was retracted the lower fuselage then left propeller contacted the ground before and aircraft gained altitude and became airborne again, the left propeller vibrating severely. The airliner covered 140 meters then struck a telephone pole severing 3 meters of the right wing along with part of its aileron. The aircraft yawed right and continued flying for 1,270 meters with an increasing bank angle to the right until it struck the ground heavily at a bank angle of 48 degrees. There was no fire at the crash scene, but the Antonov was completely destroyed.^[2]^[3]^[1]

Aircraft[edit]

The aircraft involved was an Antonov An-24B, serial number 67302909 and registered as CCCP-46215 to Aeroflot. The construction of the airliner was completed on 30 November 1966 and had sustained a total of 1,934 flight hours before the crash.^[2]^[3]^[1]

Investigation[edit]

After a detailed examination of the accident, investigators reported the chain of events leading to the crash. The flight entered the glide slope with excess speed and too high. The crew's improper use of reverse thrust in flight and their inability to take the left engine out of beta thrust mode in a timely manner. The premature retraction of the flaps and landing gear during the go around attempt was a contributing factor in the crash.^[2]

References[edit]

^ ^a ^b ^c "Accident description Saturday 30 December 1967". aviation-safety.net. Retrieved 2018-05-28.

^ ^a ^b ^c "Катастрофа Ан-24Б Латвийского УГА в Лиепае". airdisaster.ru (in Russian). Retrieved 2018-05-28.

^ ^a ^b "ACCIDENT DETAILS December 30, 1967". planecrashinfo.com. Archived from the original on September 29, 2018. Retrieved 2018-06-23.

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1950s	Flight 31 Kiev mid-air collision Flight 04 Тu-104 Kanash crash Flight 120 Flight 200 Flight 315
1960s	Flight 315 Flight 207 Flight 036 Flight 068 Flight 245 Flight 902 Flight 415 Flight 03 Flight 213 Flight 191 Flight 25 Flight 012 Flight 366 Flight 663 Flight 721 Flight 101/X-20 Flight 542 Flight 513 Flight 99 Flight 065 Flight 2723 Flight 5003 Flight 2230 Flight L-51 Flight 1668 Flight 15 Flight 831 Flight N-826
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since 1990s	CCCP-46472 crash Flight 2808 Flight 593 Flight 521 Flight 821 Flight 1492

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Aeroflot Flight L-51

1966 ◄ ► 1968

Aviation accidents and incidents in the Soviet Union

1930s	Osoaviakhim-1 SSSR-V6 Osoaviakhim
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