Alrosa Flight 514
Tupolev Tu-154M · Emergency landing and runway overrun following total loss of electrical power
From Polyarny Airport (PYJ) to Domodedovo International Airport (DME)
Event
- NTSB case
- ENG10WA057
- 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
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Unknown · led by another country; figures from NTSB notifications
- Event fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- 81
- Survivors
- 81
- 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
- 0 serious · 0 minor (NTSB)
- 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
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Not recorded
Tupolev Tu-154M
- Aircraft type
- Tupolev TU-154
- 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
- RA-85684
- Operator
- Alrosa
- Onboard fatalities
- 0
- Route
- From Polyarny Airport (PYJ)To Domodedovo International Airport (DME)
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Unknown
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Not recorded
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Not recorded
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Aircraft › Aircraft systems
From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.
Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.
From the Wikipedia article
Alrosa Flight 514 was a Tupolev Tu-154 passenger jet on a domestic scheduled flight from Udachny to Moscow, Russia, that on 7 September 2010 made a successful emergency landing at a remote airstrip after suffering an in-flight total electrical failure. All 81 people on board escaped unharmed.
The Tupolev was en route at cruise altitude when the failure occurred, which disabled the fuel system and all navigational and radio equipment, meaning that the aircraft would not have been able to reach its destination. The crew decided to attempt an emergency landing at the disused Izhma Airport. The aircraft overran the end of the runway and came to rest among the vegetation, damaged but still on its landing gear.
The crew of Flight 514 were subsequently decorated for their actions, and the aircraft was successfully repaired and flown out of the airfield to resume service with Alrosa.
Accident
Flight 514 was over Usinsk, at an altitude of 10,600 m (FL 348) when the first signs of a problem were noticed at about 06:59 local time (02:59 UTC). Shortly after, the aircraft suffered a complete failure of the electrical system, which resulted in the loss of navigational systems and electric fuel pumps. The loss of the pumps prevented the transfer of fuel from the wing tanks to the engine supply tank in the fuselage, leaving the aircraft with only 3300 kg of usable fuel, enough for 30 minutes of flight.
At about 07:47, the emergency authorities at Izhma were informed that the aircraft could make an emergency landing at the local airport. Izhma Airport is a former airfield that is now used only for helicopters, and the 1325 m runway is closed but not abandoned. The airfield, having closed to fixed-wing aircraft in 2003, was no longer marked on aeronautical charts.
The passengers were moved to the front of the aircraft. The electrical failure also caused a loss of the radio system, flaps and slats. Two attempts to land were aborted. On the third attempt, a successful emergency landing was made at 07:55 local time. The aircraft overran the runway by 160 m, and sustained some damage in the process. The aircraft landed at a speed of 350 to 380 km/h, faster than normal, due to the lack of flaps. Although the flaps are powered by hydraulics, the switches operating them are electrical. All nine crew and 72 passengers evacuated using the aircraft's evacuation slides. No injuries were reported.
Investigation and cause
Investigation
Russian authorities launched an investigation into the accident. A preliminary report was expected to be published after 10 days. On 14 September 2010, the report indicated that the batteries had self-overheated, suffering a thermal runaway. This affected the entire electrical system, navigation system and radio system.
Text from the Wikipedia article “Alrosa Flight 514” (revision 1339316631, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article
NTSB narrative
On September 7, 2010, an Alrosa Mirny Air Enterprise Tupolev Tu-154M, registration RA-85684, overran the runway at an abandoned air strip near the town of Izhma, Russia.
This accident is being investigated by the Russian Interstate Aviation Committee (MAK). The NTSB has been requested to assist the extraction and examination of information from the accident airplane's Terrain Awareness and Warning System.
Further information pertaining to this accident may be obtained from:
Interstate Aviation Committee 22/2/1 Bolshaya Ordynka Str. Moscow, 119017 Russia Telephone: (495) 953-12-44 Fax: (495) 953-35-08 E-mail: mak@mak.ru www.mak.ru
This report is for informational purposes only and contains only information obtained for, or released by, the Government of Russia.
Verbatim NTSB factual narrative from the NTSB dataset
Sources
Wikipedia article: Alrosa Flight 514
- Article
- Alrosa Flight 514
- Revision
- 1339316631 · 2026-02-19 · retrieved 2026-09-18
- Wikidata
- Q4055377
- Licence
- Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
NTSB record ENG10WA057
- Event ID
- 20101004X40949
- Case number
- ENG10WA057
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Where each value comes from
- Record
- Wikipedia article "Alrosa Flight 514" (page 28746046, revision 1339316631); merged with NTSB case ENG10WA057 (events / aircraft)
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- Wikipedia: Wikipedia article coordinates
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports); gaps and aircraft details from NTSB record ENG10WA057
- Operation
- flight number in the article title
- Fatalities
- Wikipedia: Wikipedia infobox: aircraft fatalities
- Ground fatalities
- Wikipedia: not stated in the Wikipedia infobox
- Summary
- Wikipedia infobox: summary
Source notes (2)
- One occurrence in two sources, merged: the Wikipedia article "Alrosa Flight 514" and NTSB case ENG10WA057, matched by the same aircraft registration and date. For this event outside the United States Wikipedia's values are used where the two differ; each value names its source.
- No bulk values were replaced by the NTSB case API.