# NTSB ERA15WA303: Cessna U206F, Istra, Russia, August 8, 2015

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Foreign investigation
- Date: August 8, 2015, 17:08 local (17:08 UTC)
- Place: Istra, Russia
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Defining events: [Maneuvering: Midair collision](https://openairdocs.org/ntsb-events/250); [Maneuvering: Midair collision](https://openairdocs.org/ntsb-events/250)
- Highest injury: Fatal
- Injuries: 9 fatal
- Status: Led by another country's authority
- NTSB office: Eastern Region Aviation
- Lead agency: Other
- Parties: Robinson Helicopter, Interstate Aviation Committee, Textron Aviation, Continental Motors
- NTSB case key (mKey): 91736
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA15WA303
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/91736/pdf
- Page: https://openairdocs.org/ntsb/ERA15WA303

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Maneuvering: Midair collision](https://openairdocs.org/ntsb-events/250) (defining event), aircraft 1; cases with it: [All aircraft, 196 cases](https://openairdocs.org/ntsb-events/250/sequence.md)
- [Maneuvering: Midair collision](https://openairdocs.org/ntsb-events/250) (defining event), aircraft 2; cases with it: [All aircraft, 196 cases](https://openairdocs.org/ntsb-events/250/sequence.md)

## Factual narrative (aircraft 2)

On August 8, 2015, at 1708 universal coordinated time, a Cessna U206F airplane, Russian registration RA- 67523 registered to a private owner, and a Robinson R44 II helicopter, Russian registration RA- 04383, registered to a private owner, collided while maneuvering over the Istra Reservoir, in Istra, Russia. Both aircraft impacted the waters of the reservoir and were destroyed. The pilot and 4 passengers in the airplane, and the pilot and 3 passengers in the helicopter, were all fatally injured.This investigation is under the jurisdiction of the Government of the Russia. Further information can be obtained from: Interstate Aviation Committee 22/2/1 Bolshaya Ordynka Str. Moscow, 119017, Russia mak@mak.ru This report is for informational purposes, and contains only information released by the Russian Federation .

## Factual narrative (aircraft 1)

On August 8, 2015, at 1708 universal coordinated time, a Cessna U206F airplane, Russian registration RA- 67523 registered to a private owner, and a Robinson R44 II helicopter, Russian registration RA- 04383, registered to a private owner, collided while maneuvering over the Istra Reservoir, in Istra, Russia. Both aircraft impacted the waters of the reservoir and were destroyed. The pilot and 4 passengers in the airplane, and the pilot and 3 passengers in the helicopter, were all fatally injured. This investigation is under the jurisdiction of the Government of the Russia. Further information can be obtained from: Interstate Aviation Committee 22/2/1 Bolshaya Ordynka Str. Moscow, 119017, Russia mak@mak.ru This report is for informational purposes, and contains only information released by the Russian Federation.

## Aircraft 1

- Registration: RA-67523 (not matched to a registry record)
- Reported make and model: CESSNA U206F
- Category: Airplane
- Serial number: U20603346
- Engines: Continental IO-520-DF 300 horsepower reciprocating
- Damage: Destroyed
- Fire: Unknown
- Flight: Non-U.S., non-commercial
- Airworthiness certificate: Unknown
- Equipment: Stall warning system

## Aircraft 2

- Registration: RA-04383 (not matched to a registry record)
- Reported make and model: ROBINSON R44
- Category: Helicopter
- Serial number: 1916
- Engines: Lycoming O-540 225 horsepower reciprocating
- Damage: Destroyed
- Fire: Unknown
- Flight: Non-U.S., non-commercial
- Airworthiness certificate: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft 1; injuries: fatal; seat: left
- Pilot, aircraft 2; injuries: fatal

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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