GAA25WA219

NTSB accident investigation · Piper PA31 · Deer Lake, Canada · July 26, 2025

Accident · FatalClass 5 · Foreign
Date
July 26, 2025, 20:30 local (20:30 UTC)
Place
Deer Lake, Canada · Deer Lake Regional Airport (CYDF)
Injuries
2 fatal
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
C-GYYPPiper PA31
Defining event
Initial climb: Loss of engine power (partial)
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
Case key
200660

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Aircraft

Registration
C-GYYP
Reported as
Piper PA31 (350)
Category
Airplane
Serial number
31-7812026
Built
1978
Engines
Lycoming TIO-540-J2B, 350 horsepower, reciprocatingLycoming 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