# NTSB CEN10WA538: Mooney M20J, Ryde, United Kingdom, September 4, 2010

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Foreign investigation
- Date: September 4, 2010, 16:00 local (16:00 UTC)
- Place: Ryde, United Kingdom
- Coordinates: 50.729721, -1.161944 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=50.7297&lon=-1.1619&mi=10
- 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: 2 fatal, 2 serious
- Status: Led by another country's authority
- NTSB office: Central Region
- Lead agency: Other
- Parties: Air Accidents Investigation Branch
- NTSB case key (mKey): 77275
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10WA538
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/77275/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=77275
- Page: https://openairdocs.org/ntsb/CEN10WA538

## 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 September 4, 2010, approximately 1600 Universal Coordinated Time (UTC), a Mooney M20J single-engine airplane, G-JAST, and a Vans RV-4 single-engine airplane, G-MARX, collided in midair while maneuvering near Ryde, Isle of Wight, United Kingdom. G-JAST was destroyed and G-MARX sustained substantial damage. The two occupants of G-JAST were fatally injured and the two occupants of G-MARX sustained serious injuries. The two local flights departed Bembridge, United Kingdom, at an unknown time. The accident is being investigated by the Air Accidents Investigation Branch (AAIB), United Kingdom.

## Aircraft 1

- Registration: G-JAST (not matched to a registry record)
- Reported make and model: MOONEY M20J
- Category: Airplane
- Serial number: 24-1010
- Engines: LYCOMING IO-360-A3B6D 200 horsepower reciprocating
- Damage: Destroyed
- Flight: Non-U.S., non-commercial
- Operator: Unknown
- Registered owner: Unknown
- Airworthiness certificate: Standard, Normal
- Departed: Bembridge
- Destination: Bembridge
- Flight plan: Unknown

## Aircraft 2

- Registration: G-MARX (not matched to a registry record)
- Reported make and model: VANS RV4 (UNDESIGNAT)
- Category: Airplane, amateur-built
- Serial number: 2394-1211
- Engines: Unknown reciprocating
- Damage: Substantial damage
- Flight: Non-U.S., non-commercial
- Operator: Marx Brothers Flying Group
- Registered owner: Marx Brothers Flying Group
- Airworthiness certificate: Special, Experimental (Special)
- Departed: Bembridge
- Destination: Bembridge
- Flight plan: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft 1

## Docket (1 files)

The files NTSB released with the investigation on December 20, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=77275. 31 KB in all.

- See Factual Report (item 1, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40340925&FileExtension=.PDF&FileName=See%20Factual%20Report-Master.PDF

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.