Piper PA31 accident near Deer Lake, Outside the U.S., July 26, 2025
On July 26, 2025 at about 8:30 pm local time, a 1978 Piper PA31, registered CGYYP, was substantially damaged in an accident during initial climb near Deer Lake, Outside the U.S. (Deer Lake Regional Airport). It was flown under non-U.S. private rules. 2 people were killed.
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
- July 26, 2025 · about 8:30 pm local time
- Place
- Deer Lake, Canada · Deer Lake Regional Airport · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- not recorded
- Aircraft
- Piper PA31 350, built 1978 · all PA31s on the register
- Registration
- CGYYP · no longer on the register · serial 31-7812026
- Damage
- Substantial damage
- Flight
- Flight · non-U.S. private rules
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of engine power (partial) during initial climb defining event
- Loss of control in flight during initial climb
The aircraft
- Landing gear: retractable
- Engine 1: Lycoming TIO-540-J2B (piston); 0 hours total
- Engine 2: Lycoming TIO-540-J2B (piston); 0 hours total
The flight
- Departed from: CYDF Deer Lake OF at 11:00 pm
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 |
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.