The U.S. aircraft register, updated daily
Accidents · NTSB ERA17WA104 · Preliminary: the investigation is not finished

Robinson R66 accident near Lake Teletskoye, Ru, February 12, 2017

On February 12, 2017 at about 1:19 pm local time, a Robinson R66 (helicopter), registered RA06375, was substantially damaged in an accident near Lake Teletskoye. It was flown under non-U.S. private rules. 5 people were killed. The weather was conditions the NTSB did not record.

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
February 12, 2017 · about 1:19 pm local time
Place
Lake Teletskoye, Russia · map
Type
Accident
Injuries
5 people were killed.
Weather
conditions the NTSB did not record
Aircraft
Robinson R66 · all R66s on the register
Registration
RA06375 · no longer on the register · serial 0174
Damage
Substantial damage
Flight
Flight · non-U.S. private rules

The NTSB's narrative preliminary · quoted from the NTSB record

On February 12, 2017, at 1319 coordinated universal time, a Robinson R66 helicopter, Russian registration RA-06375, was substantially damaged when it crashed into Lake Teletskoye, Republic of Altai, Russia. The pilot and four passengers were fatally injured. The flight departed the Cordon Kokshy landing site, Republic of Altai, and was conducted under Russian flight regulations.The investigation is under the jurisdiction of the Interstate Aviation Committee of Russia. Further information can be obtained from: Interstate Aviation Committee 22/2/1 Bolshaya Ordynka Str. Moscow 119017, Russia Tel.: (095) 953-12-44 Fax: (095) 953-35-08 E-mail: mak@mak.ru http://www.mak.ru This report is for informational purposes and only contains information released by the Russian Government.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Unknown or undetermined during unknown defining event

The aircraft

  • Maximum gross weight: 2,700 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Rolls Royce RR300 (turboshaft); 0 hours total
  • Not recorded
  • Operator: Altay-Avia, LLC

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers4

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.