Il-76 crash near Vitebsk
Soviet Air Force (339th Military Transport Aviation Regiment) Ilyushin Il-76 · Technical malfunction
From Vitebsk-Severny, (BSSR) to Vitebsk-Severny, (BSSR)
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
- 7 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- Unknown
- Survivors
- Unknown
- 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
- Military
Ilyushin Il-76
- Aircraft type
- Ilyushin IL-76
- 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-86714
- Onboard fatalities
- 7
- Route
- From Vitebsk-Severny, (BSSR)To Vitebsk-Severny, (BSSR)
Cause areas
- Aircraft › Aircraft systems
- Organizational issues › Development
From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.
Not plotted · Not plotted: the Wikipedia article gives no coordinates, and its site names no town or airport that matches exactly.
From the Wikipedia article
The Il-76 crash near Vitebsk was an aviation accident involving an Il-76 aircraft of the Soviet Air Force that occurred on Friday, 23 November 1979, near the village of Goryany in Vitebsk District, Vitebsk Region, Byelorussian SSR, in which the aircraft's crew (7 people) was killed. It was the first crash involving an Il-76 military transport aircraft in the history of aviation.
Crash
A crew of the 339th Military Transport Aviation Regiment was performing a training flight around a large rectangular circuit at night in adverse weather conditions (10-tenths cloud cover at a height of 150 m, visibility — 2 km).
On the straight segment after the fourth turn and after extending the flaps further to 43°, at a distance of 12 km from the runway, with the ailerons in the neutral position, the aircraft began an uncommanded intense (up to 65°) roll and turn to the left while descending at an average vertical speed of up to 25–27 m/s and with a pitch angle of −23° to +4° (at the moment of contact with the ground). 1 second after the roll began, the aircraft commander began countering the roll with full deflection of the ailerons and the rudder to the right by more than 11°, while simultaneously deflecting the elevator upward and then giving the command to retract the flaps, which led to a reduction of the roll to 36.5° and a change in the pitch angle. As the roll decreased, the commander briefly (for 1 second) moved the ailerons to a position close to neutral, which again led to an increase in the roll, which the commander countered with full deflection of the ailerons and rudder, reducing the roll to 33–35°. The aircraft turned through 180°, lost altitude and, with a bank of 33°–35°, struck the ground with its left wing, was completely destroyed and burned. The crash occurred in a field near the village of Goryany in Vitebsk District. The crew was killed.
Investigation and cause
Findings of the investigation
The crash occurred because of a design and manufacturing defect — failure of the left flap transmission — the shaft broke due to the failure of the fork of the drive gear of the left angle gearbox, as a result of which the left flap retracted to 10° under the action of aerodynamic forces. This, with the right flap fully extended (43º), created a large rolling moment to the left. In the resulting emergency, the crew acted correctly. There was not enough altitude margin to recover the aircraft from the difficult situation.
Translated into English with AI assistance from the Russian Wikipedia article “Катастрофа Ил-76 близ Витебска” (revision 154269038, 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 Ил-76 близ Витебска
- Translation
- Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
- Revision
- 154269038 · 2026-08-06 · retrieved 2026-09-19
- Wikidata
- Q48941229
- 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 Ил-76 близ Витебска" (page 7036985, revision 154269038), translated into English with AI assistance
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- none
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
- Operation
- operator named as an armed force or military unit in the infobox
- 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.