Date & Time:
Aug 29, 1979 at 2305 LT
Type of aircraft:
De Havilland DHC-6 Twin Otter
Operator:
Registration:
C-GROW
Flight Phase:
Landing (descent or approach)
Flight Type:
Scheduled Revenue Flight
Survivors:
No
Schedule:
Brevoort Island - Frobisher Bay
MSN:
415
YOM:
1974
Country:
Canada
Region:
North America
Crew on board:
2
Crew fatalities:
2
Pax on board:
7
Pax fatalities:
7
Other fatalities:
0
Total fatalities:
9
Captain / Total hours on type:
476
Copilot / Total hours on type:
323
Aircraft flight hours:
5286
Circumstances:
The airplane was being used for a series of flights between Frobisher (YFB) and Brevoort Island, a distance of 119 NM. These flights were conducted under visual flight rules (VFR) with a Flight Notification filed at Frobisher. Two return flights were accomplished without incident and the aircraft was flown back to Brevoort for another round trip. On the final flight the aircraft, with the same two pilots and with seven passengers, left Brevoort at 21:57 hours local time enroute to Frobisher. The pilots contacted Frobisher Flight Service Station (FSS) at 22:31 reporting at 6000 feet altitude estimating Frobisher in 15 minutes. Upon receiving the latest weather indicating conditions below VFR limits, they requested clearance for 'Special VFR'. This clearance was granted. Another weather report was transmitted by the Frobisher FSS giving the 22:44 observation in which the ceiling had lowered to 400 ft with the visibility at 8 miles and the wind from 190 deg M at 22 knots. The pilot stated they would make a front course ILS approach to runway 36 with a landing on 18. At 22:58 they were issued a clearance for an ILS approach. They subsequently reported outbound at procedure turn altitude and at that time confirmed their planned approach for runway 36 with circling for 18. This was the last radio transmission from C-GROW. The Twin Otter was seen flying north along the runway. It then struck high ground about 1,200 feet east of the runway and about 100 feet above runway level. The aircraft was destroyed and all nine occupants were killed.
Probable cause:
The following findings were identified:
- Three other aircraft made successful downwind landings on runway 36; one before and two after the accident flight.
- For undetermined reasons, the crew of C-GROW, following their instrument landing approach, decided not to land on runway 36 with the strong tailwind and elected to circle for runway 18.
- The weather was below circling limits.
- The crew attempted a circling approach at low altitude at night on the non maneuvering side of the runway.
- The aircraft struck the ground while under control during flight in restricted visibility.
- Three other aircraft made successful downwind landings on runway 36; one before and two after the accident flight.
- For undetermined reasons, the crew of C-GROW, following their instrument landing approach, decided not to land on runway 36 with the strong tailwind and elected to circle for runway 18.
- The weather was below circling limits.
- The crew attempted a circling approach at low altitude at night on the non maneuvering side of the runway.
- The aircraft struck the ground while under control during flight in restricted visibility.
Final Report:
C-GROW.pdf8.22 MB
