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1943 Saint-Donat RCAF Liberator III crash

20 Oct 1943 · Saint-Donat, Lanaudière, Quebec, Canada

Royal Canadian Air Force No. 10 Squadron RCAF Consolidated Liberator III · CFIT (controlled flight into terrain)

From Gander International Airport (YQX) to Mont Joli Airport (YYY)

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Event

Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
Event fatalities
24 · all aircraft and ground
Ground fatalities
Unknown
Occupants
Unknown
Survivors
0
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Military

Consolidated Liberator III

Category
Airplane · from aircraft type
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
3701H
Onboard fatalities
24
Route
From Gander International Airport (YQX)To Mont Joli Airport (YYY)

Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.

From the Wikipedia article

The 1943 Saint-Donat Liberator III Crash was an aerial accident that killed 24 peoplethe worst accident in Canadian military aviation history.

During a routine flight from Gander, Newfoundland to Mont-Joli, Quebec, a combination of inclement weather and a mapping error caused the Liberator to collide with the Black Mountain (French: Montagne Noire), killing all those on board. The wreckage was discovered accidentally more than two years later.

Today, a hiking trail leads to the site where remains of the aircraft can still be seen along with numerous plaques detailing the accident and a monument honouring those who died.

Accident

On 19 October 1943, bad weather conditions had kept all aircraft at Gander International Airport grounded until 22:16 hours when the accident aircraft finally received authorization to leave on a routine flight to Mont-Joli Airport with a crew of 4 and 20 passengers, reportedly proceeding on leave. After about three hours in the air, at 01:45 the pilot made contact with Mont-Joli Airport control tower to ask for authorization to land, only to be notified that the landing strip was closed due to the weather and diverted the aircraft to Rockcliffe Airport, Ontario or Dorval airport, Montreal, Québec. Besides a call for help reportedly heard by another aircraft flying near Grand-Mère, Quebec, no other contact was made with the Liberator.

Investigation and cause

Cause

At an altitude of 875 m, the Black Mountain (La Montagne Noire) is the highest point of the region of Saint-Donat. While the exact cause of the accident is still unknown, it was later discovered that its height was not correctly reported on contemporary navigation maps. Given the poor weather conditions on the night of the crash, it is very likely that the pilot noticed the mountain too late to climb away from it.

Text from the Wikipedia article “1943 Saint-Donat RCAF Liberator III crash” (revision 1364267593, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article

Sources

Wikipedia article: 1943 Saint-Donat RCAF Liberator III crash
Article
1943 Saint-Donat RCAF Liberator III crash
Revision
1364267593 · 2026-07-15 · retrieved 2026-09-18
Wikidata
Q17985130
Licence
Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
Record
Wikipedia article "1943 Saint-Donat RCAF Liberator III crash" (page 43742673, revision 1364267593)
Date
Wikipedia infobox: date
Place and country
Wikipedia infobox: site
Map position
Wikipedia article coordinates
Aircraft, operator and route
Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
Operation
operator named as an armed force or military unit in the infobox
Fatalities
Wikipedia infobox: aircraft fatalities
Ground fatalities
not stated in the Wikipedia infobox
Summary
Wikipedia infobox: summary
Source notes (1)
  • Wikipedia · Facts from the Wikipedia article's infobox and coordinates, not checked against an investigation report. Independent review pending.