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Crash of a Fairchild F27 in Quebec: 17 killed

Date & Time: Mar 29, 1979 at 1845 LT
Type of aircraft:
Operator:
Registration:
C-FQBL
Flight Phase:
Survivors:
Yes
Schedule:
Quebec - Montreal
MSN:
47
YOM:
1959
Flight number:
QB255
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
21
Pax fatalities:
Other fatalities:
Total fatalities:
17
Circumstances:
Shortly after liftoff from Quebec-Ancienne Lorette Airport, en route to Montreal-Dorval Airport, the right engine caught fire. The captain contacted ATC, declared an emergency and was cleared to return for an emergency landing. He initiated a turn to the right when the airplane lost height, struck the ground and crashed in flames about 1,300 meters short of runway. Seven passengers were seriously injured while 17 other occupants were killed.
Probable cause:
It was determined that during initial climb, the low pressure impeller from the right (n°2) engine burst, causing the forward part of the engine to separate. The gear couldn't be raised because of engine debris damage to the electronic gear selection circuitry. This, including the exposed engine and lower cowl, increased the drag. In this configuration the aircraft wasn't capable of out-climbing obstacles straight ahead nor capable of maintaining altitude during the right hand turn. Engine separation and passenger movement resulted in the center of gravity shifting beyond its aft limit. The airspeed then decreased until the aircraft struck the ground at or below the minimum control speed (Vmc). Investigations revealed that the low pressure impeller burst due to the presence of fatigue cracks that had not been detected by the technicians in charge of the aircraft's maintenance.

Crash of a Boeing 707-123B in Hewanorra

Date & Time: Feb 19, 1979
Type of aircraft:
Operator:
Registration:
C-GQBH
Survivors:
Yes
Schedule:
Toronto - Hewanorra
MSN:
17650/67
YOM:
1959
Flight number:
QB714
Country:
Crew on board:
9
Crew fatalities:
Pax on board:
162
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On approach to Hewanorra Airport on a charter flight from Toronto, the crew encountered windshear conditions. The airplane remained stable and while passing over the runway threshold, the copilot retarded the throttles when, at a height of six meters, the airplane stalled and struck the runway surface. The nose gear was torn off and the airplane slid for about 700 meters before coming to rest. All 171 occupants escaped uninjured while the aircraft was damaged beyond repair.
Probable cause:
Loss of control following windshear conditions on final approach.

Crash of a Douglas C-47B-20-DK in Oreway: 4 killed

Date & Time: Jan 17, 1956 at 0052 LT
Operator:
Registration:
CF-GVZ
Survivors:
Yes
Schedule:
Quebec – Seven Islands – Knob Lake – Oreway – Seven Islands – Quebec
MSN:
15552/26997
YOM:
1944
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
15
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
At approximately 1436 hours Atlantic Standard Time on 16 January the aircraft took off on a non-scheduled flight from Mont Joli, Quebec, to Knob Lake via Seven Islands and arrived at Knob Lake at 2002 hours. At 2202 hours on 17 January the aircraft took off from Knob Lake on the return flight to Seven Islands via Oreway, Labrador, with a crew of three and fifteen passengers on board, The flight appears to have been normal until 2312 hours at which time, according to the navigation log, heavy to moderate rime ice was encountered and the aircraft was climbed to 10 000 feet. At 2335 hours a further note was made in the log that the oil pressure on the starboard engine had dropped to 40 pounds (per square inch) and that at 2336 hours the warning light came on and the starboard propeller was feathered. According to a statement obtained from one of the passengers and the declaration of the stewardess, the engine was subsequently restarted for about ten minutes and then stopped again. The aircraft gradually lost height on one engine and due to the hills ahead the captain decided to return to Oreway. At 0052 the aircraft crashed to the ground about 2 000 feet southeast of Oreway railway station, while a forced landing was being attempted. The captain, co-pilot and one passenger died in the accident and the stewardess died of injuries a few days later; two passengers were seriously injured and some of the remaining passengers received minor injuries.
Probable cause:
The aircraft was crash landed at night through inability to maintain height due to failure of the starboard engine under icing conditions when the aircraft was heavily loaded. In addition to the facts cited by the Board it is concluded, from a review of its report, that the pilot committed an error in taking the aircraft off from Knob Lake at a weight calculated to be 729 lbs. in excess of the maximum permitted for that airfield.
Final Report: