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An-24 crash near Kerch

13 Nov 1971 · outskirts of the village of Voikovo, 2610 m from the runway of Kerch Airport, Kerch, Crimean Oblast (Ukrainian SSR, USSR)

Simferopol Joint Aviation Squadron, Ukrainian Civil Aviation Directorate Antonov An-24 · Crew errors

From Simferopol (Ukrainian SSR, USSR) to Kerch (Ukrainian SSR, USSR)

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Event

Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
Event fatalities
6 · all aircraft and ground
Ground fatalities
Unknown
Occupants
Unknown
Survivors
5
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Airline

Antonov An-24

Aircraft type
Antonov AN-24
Category
Airplane · from aircraft type
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
CCCP-46378
Onboard fatalities
6
Route
From Simferopol (Ukrainian SSR, USSR)To Kerch (Ukrainian SSR, USSR)

Cause areas

  • Personnel issues › Task performance
  • Personnel issues › Miscellaneous
  • Aircraft › Aircraft systems
  • Environmental issues › Operating environment
  • Environmental issues › Conditions/weather/phenomena

From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.

Approximate · Estimated position: Voikove, the place the Wikipedia article names. Not the accident site.

From the Wikipedia article

The An-24 crash near Kerch was an aviation accident that occurred on Saturday, 13 November 1971 near Kerch. An An-24B airliner of the Simferopol Joint Aviation Squadron of the airline Aeroflot was completing scheduled domestic flight N-639 on the Simferopol — Kerch route, but while approaching to land at Kerch Airport the airliner entered dense fog. Because of the fog the crew became disoriented, and soon the airliner struck power line wires and then a brick warehouse, breaking up in the process. 6 of the 11 people on board — 5 passengers and 6 crew members — were killed, and 5 survived.

Crash

On 13 November 1971 at 07:39 Moscow time, flight N-639 with 6 passengers and 5 crew members (including an accompanying police officer) departed from Simferopol Airport; the flight was operated by An-24B registration USSR-46378, flying from Simferopol to Kerch. After climbing, the airliner levelled off at a flight level of 2400 metres, and the flight took place in simple weather conditions. It was flown by a crew whose captain (PIC) was N. F. Mitringa.

At 07:58 the crew contacted the local air routes controller at Kerch Airport and received instructions from him that the landing would be made on a heading of 250°, as well as the descent conditions, the aerodrome pressure and the weather data (calm, cloud base 150 metres, runway visibility — 1500 metres). The controller then cleared the descent and an approach using the OSP system. The crew acknowledged receipt of the information. At 08:06 the airliner reached the third turn, after which the crew, with a left turn while descending to a height of 400 metres, reached the area of the outer marker (DPRM) and began the approach according to the established pattern. At 08:16 the aircraft reported completing the fourth turn at a height of 500 metres, and at 08:17 — entering the glide path and being ready to land. At 08:18 the controller informed the crew that they had passed the outer marker. The crew acknowledged receipt of the information. The aircraft made no further contact and did not respond to calls.

7 kilometres from the runway threshold the airliner was at a height of 300 metres, and it passed the outer marker at a height of 200 metres. Then within 30 seconds the crew began descending with a vertical speed of 6 m/s at a forward speed of 215—230 km/h, which exceeded the recommended values. 25 seconds after passing the outer marker, when the aircraft had already entered dense morning fog, the crew, unable to see ground references, began to level the aircraft out of the descent. At that point the airliner was at a low relative height and 10—20 metres above runway level. At 08:19, 2610 metres from the runway threshold, 62 metres to the left of its centreline and 17 metres below its level, the An-24 at a speed of 220 km/h struck a 10-metre power line pole and then the roof of a brick warehouse, after which it broke up and caught fire; the main part of the wreckage lay on a country road on the outskirts of the village of Voikovo.

The co-pilot and five passengers were found alive at the crash site. There were no casualties on the ground. 13 days later the co-pilot died of his injuries in hospital. In total 6 people were killed in the crash: the entire crew, a passenger and the accompanying police officer.

Investigation and cause

Cause

Premature descent below the glide path between the outer marker (DPRM) and the inner marker (BPRM) as a result of crew errors, consisting of an excessive vertical rate of descent and poor coordination between crew members in cross-checking altimeter readings, combined with a possible overreading of the barometric altimeters due to instrument and aerodynamic errors and a discrepancy between them in their altitude readings.

Contributing factors:

The absence at the aerodrome of ground-based means of additional monitoring of the descent path during an approach using the OSP system.

The crew's failure to use the radio altimeter warning device, or its failure.

Local fog, which did not allow the crew to visually determine the actual flight height and take measures to stop the descent.

The crew's lack of information about the local fog.

Translated into English with AI assistance from the Russian Wikipedia article “Катастрофа Ан-24 под Керчью” (revision 150407481, retrieved 2026-09-19) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out; the translation may contain errors, and long articles were cut to their first 700 words. Read the article

Sources

Russian Wikipedia article: Катастрофа Ан-24 под Керчью
Article
Катастрофа Ан-24 под Керчью
Translation
Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
Revision
150407481 · 2025-12-03 · retrieved 2026-09-19
Wikidata
Q16662376
Licence
Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
Record
ru Wikipedia article "Катастрофа Ан-24 под Керчью" (page 4516211, revision 150407481), translated into English with AI assistance
Date
Wikipedia infobox: date
Place and country
Wikipedia infobox: site
Map position
place the Wikipedia infobox site links (Wikidata coordinates)
Aircraft, operator and route
Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
Operation
"scheduled domestic flight" in the article's opening paragraph
Fatalities
Wikipedia infobox: aircraft fatalities
Ground fatalities
not stated in the Wikipedia infobox
Summary
Wikipedia infobox: summary
Source notes (1)
  • Wikipedia · Facts from the Russian Wikipedia article's infobox, translated into English with AI assistance, not checked against an investigation report. Independent review pending.