# NTSB GAA25WA219: Piper PA31, Deer Lake, Canada, July 26, 2025

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 5 · Foreign
- Date: July 26, 2025, 20:30 local (20:30 UTC)
- Place: Deer Lake, Canada · Deer Lake Regional Airport (CYDF)
- Coordinates: 49.209167, -57.394444
- Nearby events: https://openairdocs.org/map.md?lat=49.2092&lon=-57.3944&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Defining event: [Initial climb: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: General Aviation Accidents
- Lead agency: Other
- Parties: Lycoming, Transportation Safety Board of Canada, Piper Aircraft, Inc., Hartzell
- NTSB case key (mKey): 200660
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA25WA219
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200660/pdf
- Page: https://openairdocs.org/ntsb/GAA25WA219

## Sequence of events

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

- [Initial climb: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) (defining event); cases with it: [All aircraft, 1,858 cases](https://openairdocs.org/ntsb-events/342/sequence.md)
- [Initial climb: Loss of control in flight](https://openairdocs.org/ntsb-events/240); cases with it: [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md)

## Aircraft

- Registration: C-GYYP (not matched to a registry record)
- Reported make and model: PIPER PA31 (350)
- Category: Airplane
- Serial number: 31-7812026
- Year built: 1978
- Engines: Lycoming TIO-540-J2B 350 horsepower reciprocating; Lycoming TIO-540-J2B 350 horsepower reciprocating
- Damage: Substantial damage
- Flight: Non-U.S., non-commercial
- Airworthiness certificate: Standard, Normal
- Departed: CYDF, Deer Lake, OF
- Airport: CYDF, Deer Lake Regional Airport

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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