Aeroflot Flight 315 (1960)

Aeroflot Flight 315 (1960)
Accident
An Antonov An-10 similar to the accident aircraft
Date	26 February 1960 (1960-02-26)
Summary	Loss of control
Aircraft
Aircraft type	Antonov An-10A
Operator	Aeroflot
Registration	CCCP-11180
Flight origin	Vnukovo International Airport
Destination	Lviv Airport
Passengers	25
Crew	8
Fatalities	32
Survivors	1

Aeroflot Flight 315 (1960) was a regularly scheduled passenger flight operated by Aeroflot from Vnukovo International Airport in Moscow to Lviv Airport in Lviv, Ukraine; at the time, both were in the Soviet Union. On 26 February 1960, the An-10 operating this flight crashed short of the airport runway while on final approach. 24 passengers and eight crew members were killed, one passenger survived.

The Air Accident Investigation Commission concluded the cause of the accident was a combination of design flaw and icing.

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Transcription

Accident

Flight 315 departed Vnukovo Airport at 14:38 Moscow time, and was cleared to climb to 7,000 meters. At 16:35 as the airliner approached Lviv the crew received clearance to descend to 4,000 meters. Weather was reported as a cloud base of 150-200 meters in icing conditions with visibility at three km. The descent was normal and the pilot reported reaching the marker beacon at an altitude of 200 meters, the flight was then cleared to land. When the aircraft penetrated the cloud base the crew switched to visual flight rules (VFR). While descending through 95 meters the flaps were set to 45 degrees and the Antonov began a rapid pitch down. The crew briefly regained control but the nose pitched down again and at 16:57 impacted the ground 1,400 meters short of the runway with pitch down attitude of 20-25 degrees.^[1]^[2]

Aircraft

Construction of the AN-10 involved, serial number 9401801-18-01, was completed at the Voronezh aircraft factory on 24 January 1960 and it was transferred to the civil air fleet. At the time of the accident, the aircraft had sustained a total of 109 flight hours.^[1]

Investigation

Because the aircraft was in operation for only six days after release from the factory the Air Accident Investigation Commission decided it was unlikely that mechanical failure was the root cause of the accident. The evidence gathered from the investigation of Aeroflot Flight 315 (1959) on 26 February 1960 three months earlier was further scrutinized. Testing eventually revealed that icing of the horizontal stabilizer created a supercritical angle of attack, that caused a sudden pitch down of the aircraft when the flaps are lowered to the maximum setting of 45 degrees. A contributing factor was the speed with which the flaps deployed. 35 degrees in eight seconds was deemed disproportionally rapid. To abate this concern ice protection systems for the stabilizer were improved and selection of flaps beyond 15 degrees in known icing conditions was disallowed.^[1]^[2]

References

^ ^a ^b ^c "An-10A catastrophe of the Ukrainian Department of Civil Air Fleet in a / p Lviv". airdisaster.ru. Dmitry Ertsov, Alexander Fetisov. Retrieved 28 July 2019.
^ ^a ^b "Friday 26 February 1960". aviation-safety.net. Aviation Safety Network. Retrieved 28 July 2019.

Aeroflot

Part of the SkyTeam alliance

Subsidiaries

Active	Aurora Pobeda Rossiya
Inactive	Dobrolet Donavia Orenair SAT Airlines Vladivostok Air
Exited	Nordavia (now Smartavia)

Fleet

Accidents and
incidents

1950s	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
1970s	Flight U-45 Flight 1661 Flight 3630 CCCP-11000 crash CCCP-12996 crash Flight 1969 Flight 1912 Flight 773 Flight 2174 Flight 1491 Flight 558 Flight 1036 Flight 217 Flight 6263 Flight 141 Flight 630 Flight 6551 Flight 109 Flight A-13 Flight 3932 Flight 964 Flight 19 Flight 2022 CCCP-75559 crash Flight 662 Flight 2003 Flight 3739 Flight 909 Flight 1802 Flight 418 Flights 7957 and 31 Flight 2415 Flight N-36 Flight 3843 Flight 5003 Flight 331 Flight B-2 Flight 6709 Flight 1080 Flight 1691 Flights 7628 and 7880 Flight 5484
1980s	Flight 4225 Flight 498 Flight 811 Flight 3603 Flight 8641 Flight 411 Flight 343 Flight 5463 Flight 601 Flight 3352 Flight 3519 Flight 7841 1985 Zolochiv mid-air collision Flight 5143 Flight 101/435 Flight 2306 Flight 6502 Flight 892 Flight U-505 Flight N-528 Flight 699 Flight 3739
since 1990s	CCCP-46472 crash Flight 2808 Flight 593 Flight 821 Flight 1492

Aviation accidents and incidents in 1960

Jan 6

National Airlines Flight 2511

Jan 18

Capital Airlines Flight 20

Jan 19

SAS Flight 871

Jan 21

Avianca Flight 671

Feb 25

Rio de Janeiro mid-air collision

Feb 26

Aeroflot Flight 315

Feb 26

Alitalia Flight 618

Mar 17

Northwest Orient Airlines Flight 710

May 1

U-2 incident

Jun 10

Aeroflot Flight 207

Jun 10

Trans Australia Airlines Flight 538

Jul 1

RB-47 incident

Jul 14

Northwest Orient Airlines Flight 1-11

Jul 15

Ethiopian Air Lines Flight 372

Jul 16

1960 Danish football air crash

Jul 21

Chicago Helicopter Airways Flight 698

Aug 17

Aeroflot Flight 036

Aug 29

Air France Flight 343

Sep 19

World Airways Flight 830

Sep 26

Austrian Airlines Flight 901

Oct 4

Eastern Air Lines Flight 375

Oct 29

Cal Poly football team

Nov 20

F-84 Thunderstreak crash

Nov 23

Philippine Airlines Flight S26

Dec 16

New York mid-air collision

Dec 17

Munich Convair 340 crash

1959 ◄ ► 1961

Aviation accidents and incidents in the Soviet Union

1930s	Osoaviakhim-1 SSSR-V6 Osoaviakhim
1940s	1948 Aeroflot Ilyushin Il-12 crash
1950s	1950 Sverdlovsk plane crash Aeroflot Flight 04 1958 Aeroflot Tu-104 Kanash crash Aeroflot Flight 315 (1959) Aeroflot Flight 120 Aeroflot Flight 200
1960s	Aeroflot Flight 315 (1960) U-2 incident Aeroflot Flight 207 RB-47 shootdown incident Aeroflot Flight 036 Austrian Airlines Flight 901 Aeroflot Flight 068 Aeroflot Flight 245 Aeroflot Flight 902 Aeroflot Flight 415 Aeroflot Flight 213 (1962) Aeroflot Flight 191 Aeroflot Flight 03 Aeroflot Flight 25 Aeroflot Flight 012 Aeroflot Flight 366 Aeroflot Flight 663 Aeroflot Flight 721 Aeroflot Flight 101/X-20 Aeroflot Flight 542 Aeroflot Flight 513 Aeroflot Flight 99 Aeroflot Flight 065 Aeroflot Flight 2723 Aeroflot Flight 5003 (1967) Aeroflot Flight 2230 Aeroflot Flight L-51 Aeroflot Flight 15 Seaboard World Airlines Flight 253A 1969 Yukhnov mid-air collision Aeroflot Flight N-826
1970s	Aeroflot Flight U-45 Aeroflot Flight 1661 Dymshits–Kuznetsov hijacking affair Aeroflot Flight 3630 Aeroflot Flight 244 22 January 1971 Surgut Aeroflot Antonov An-12 crash 31 January 1971 Surgut Aeroflot Antonov An-12 crash Aeroflot Flight 1969 Aeroflot Flight 1912 Malév Flight 110 Aeroflot Flight 773 Aeroflot Flight N-63 Aeroflot Flight 2174 Aeroflot Flight 1491 Aeroflot Flight 558 Aeroflot Flight 1036 Aeroflot Flight 217 Japan Air Lines Flight 446 Aeroflot Flight 6263 Aeroflot Flight 141 Aeroflot Flight 630 Balkan Bulgarian Airlines Flight 307 Aeroflot Flight 6551 Aeroflot Flight 109 Aeroflot Flight A-13 Aeroflot Flight 3932 Aeroflot Flight 964 Aeroflot Flight 19 Aeroflot Flight 2022 1974 Leningrad Aeroflot Il-18 crash 1974 Surgut mid-air collision Aeroflot Flight 2003 Aeroflot Flight 3739 (1976) Aeroflot Flight 909 Aeroflot Flight 1802 Aeroflot Flight 418 1976 Anapa mid-air collision Aeroflot Flight 2415 Aeroflot Flight N-36 Aeroflot Flight 3843 Aeroflot Flight 5003 (1977) 1977 Aeroflot Tupolev Tu-134 hijacking Aeroflot Flight B-2 Aeroflot Flight 6709 Korean Air Lines Flight 902 1978 Yegoryevsk Tu-144 crash Iranian Chinook shootdown Aeroflot Flight 1080 Aeroflot Flight 1691 1979 Dniprodzerzhynsk mid-air collision Aeroflot Flight 5484
1980s– Dec. 1991	Aeroflot Flight 4225 1981 Pushkin Tu-104 crash Aeroflot Flight 498 1981 Armenia mid-air collision 1981 Zheleznogorsk mid-air collision Aeroflot Flight 811 Aeroflot Flight 3603 Aeroflot Flight 8641 Aeroflot Flight 411 Aeroflot Flight 5463 Korean Air Lines Flight 007 Aeroflot Flight 601 Aeroflot Flight 3352 Aeroflot Flight 3519 Aeroflot Flight 7841 1985 Zolochiv mid-air collision Aeroflot Flight 5143 Aeroflot Flight 101/435 Aeroflot Flight 2306 Aeroflot Flight 6502 Aeroflot Flight U-505 Aeroflot Flight N-528 Aeroflot Flight 699 Aeroflot Flight 3739 (1988) 1988 Soviet Air Force Il-76 crash An-24 crash in Navoiy