Robinson Helicopter CO INC ROBINSON R44 and Reims Aviation SA CESSNA F172N incident near Leixlip, Ie, July 25, 2015
On July 25, 2015 at about 9:55 am local time, 2 aircraft, Robinson Helicopter CO INC ROBINSON R44 (GOCON) and Reims Aviation SA CESSNA F172N (EIOFM), were involved in the same incident near Leixlip. No one was hurt; 4 people were on board or involved.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this incident. 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
- July 25, 2015 · about 9:55 am local time
- Place
- Leixlip, Ireland
- Type
- Incident
- Injuries
- No one was hurt; 4 people were on board or involved.
- Weather
- not recorded
- Aircraft 1
- Robinson Helicopter CO INC ROBINSON R44 UNDESIGNAT
- Registration
- GOCON · no longer on the register · serial 1608
- Damage
- Not recorded
- Flight
- Flight
- Aircraft 2
- Reims Aviation SA CESSNA F172N
- Registration
- EIOFM · no longer on the register · serial 1988
- Damage
- Not recorded
- Flight
- Flight
The factual record for the Robinson Helicopter CO INC ROBINSON R44 from the NTSB's investigation tables, in plain English
What happened, in order
- Near midair/TCAS alert/loss of separation during enroute defining event
The aircraft
- Maximum gross weight: 2,401 lb
- Landing gear: fixed
- Engine: Lycoming O-540-F1B5 (piston); 0 hours total
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
The factual record for the Reims Aviation SA CESSNA F172N from the NTSB's investigation tables, in plain English
What happened, in order
- Near midair/TCAS alert/loss of separation during enroute defining event
The aircraft
- Maximum gross weight: 2,299 lb
- Landing gear: fixed
- Engine: O-320-H2AD (piston); 0 hours total
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket 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.