Crash of an Avro 748-2B-FAA in Cheney: 2 killed

Date & Time: Sep 15, 1988 at 1019 LT
Type of aircraft:
Operator:
Registration:
C-GFFA
Flight Type:
Survivors:
No
Schedule:
Montreal - Ottawa
MSN:
1789
YOM:
1981
Location:
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
A BAe-748 cargo plane was destroyed when it crashed while on approach to Ottawa International Airport, ON (YOW), Canada. Both pilots were killed. The airplane had arrived at Montreal-Dorval International Airport, QC (YUL) following a cargo flight from Dayton, OH, USA. All the cargo was unloaded in Montreal and the aircraft departed at 09:58 for Ottawa on an instrument flight rules (IFR) flight plan. The en route phase of the flight were uneventful. At about 10:19, while the aircraft was in level cruise flight at 3000 feet at approximately 200 knots indicated airspeed (KIAS), the flight data recorder (FDR) recorded a full-up deflection of the left aileron and a full-down deflection of the right aileron, and the aircraft began a roll to the left at a high rate. The right aileron remained at the fully-deflected position for a period of three seconds, and then, over the next seven seconds, the deflection gradually decreased by about five degrees. During the same 10-second period, the left aileron remained nearly fully deflected for the first eight seconds, then the deflection decreased by about five degrees during the next two seconds. By this time, the aircraft had rolled through approximately 460 degrees, and the aircraft nose had dropped 20 to 30 degrees below the horizon. At this point, the ailerons suddenly returned to about the neutral position and remained there for the last three seconds of the flight. The aircraft bank angle remained at approximately 90 degrees of left bank with a maximum vertical g of 4.7 recorded. The aircraft struck the ground at an airspeed of approximately 290 KIAS after a heading change of about 75 degrees left of the cruise heading. At impact, the aircraft bank angle was nearly 90 degrees left and the pitch angle was 41 degrees down. The time from the initial aileron deflection to ground impact was approximately 18 seconds.
Probable cause:
The Board determined that the aileron control system was asymmetrically rigged, making it susceptible to aerodynamic overbalance. The operator did not conduct the required post-maintenance flight tests of the aileron control response. When the ailerons were held at full deflection by aerodynamic forces, following a large control-wheel input by the pilot, the subsequent control reaction by the pilot was inappropriate. Contributing to the accident were the design of the aileron system; ambiguous and incomplete maintenance instructions; a lack of published information for flight crew concerning aileron system performance and possible emergencies; and the presence of factors which may have led to the development of flight crew fatigue.

Crash of a De Havilland DHC-2 Beaver in Ahmic Lake

Date & Time: Jul 3, 1988
Type of aircraft:
Operator:
Registration:
C-FPSM
Flight Type:
Survivors:
Yes
MSN:
1525TB1
YOM:
1963
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total hours on type:
6.00
Circumstances:
The pilot had successfully completed 10 or 12 landings in other parts of the large lake. He flew the aircraft to the southeast end of the lake and carried out a successful touch-and-go landing and initiated another circuit and approach to land in the same area. Following touchdown, the right outer wing struck the water, and the aircraft nosed over and began to sink. The pilot was able to escape from the aircraft before it submerged. The pilot held a valid Airline Transport Pilot Licence and was acquiring solo time in order to obtain a float endorsement. He had completed 6.1 hours of time on the aircraft, 3.1 of this solo time. The pilot had not reported any difficulty with the previous landings; prior to this touchdown, he had to adjust his approach slightly to the right of his intended landing path to avoid water traffic. The pilot reported that the wind was blowing from about 330° at 5 to 10 knots which would have resulted in a 20° crosswind from the right of his landing path. Weather observations taken at Muskoka Airport and North Bay Airport at about the time of the occurrence reported the wind direction and speed to be 280° true at 10 gusting to 15 knots and 240° at nine knots respectively. Ahmic Lake is equidistant from these two airports, that is about 35 miles from each. Using these reported winds, this would result in a crosswind component of between 30 and 70° from the left. Damage to the aircraft's right wing and float suggested that, on touchdown, the aircraft may have been drifting to the right, resulting in the right float ploughing into the water, followed by the right wing striking the surface of the lake. Careful examination of the damaged right float confirmed that there was no evidence of collision with a floating or submerged object. The float bow had been driven upwards and inwards, resulting in overload failures in the float structure ahead of the spreader strut attachments. This damage pattern is consistent with that which would result from hydrodynamic forces acting on the float structure at touchdown with the aircraft in in a slightly nose-down attitude and drifting to the right. Damage to the right wing was also due to water impact. All float attach brackets and struts had failed under overload conditions when the aircraft nosed over. The pilot had limited experience on float-equipped aircraft and may not have recognized drift or wind direction prior to touchdown. The lake was large enough for an into wind landing. No faults were found in the aircraft's control systems or float structure which would have contributed to the accident. The damage pattern indicated that the aircraft touched down in a slightly nose-down attitude, drifting to the right. Hydrodynamic forces acting on the right float following touchdown resulted in the right outer wing striking the water. The aircraft, as a result, nosed over and sank.
Source: www.dhc-2.com

Crash of a Swearingen SA226AC Metro II off Hamilton: 2 killed

Date & Time: Feb 11, 1988 at 0332 LT
Type of aircraft:
Operator:
Registration:
C-GJDX
Flight Type:
Survivors:
No
Schedule:
Toronto - Hamilton
MSN:
TC-211EE
YOM:
1974
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The crew departed Toronto-Lester Bowles Pearson Airport on a short night cargo flight to Hamilton. While descending in good weather conditions, the airplane went out of control and crashed into Lake Ontario, few km off Hamilton. Both pilots were killed.

Crash of a Swearingen SA226AT Merlin IV in Hamilton

Date & Time: Jan 12, 1988
Operator:
Registration:
C-GJWW
Survivors:
Yes
MSN:
AT-013
YOM:
1973
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
For unknown reasons, the aircraft completed a gear up landing at Hamilton-Civic Airport. All three occupants escaped uninjured while the aircraft was damaged beyond repair.

Crash of a De Havilland DHC-2 Beaver in Powell Lake: 2 killed

Date & Time: Jul 25, 1987
Type of aircraft:
Registration:
C-GMPE
Survivors:
No
MSN:
620
YOM:
1954
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
On approach to Powell Lake, the single engine airplane struck tree tops and crashed. Company owner and pilot Bryan Wylie and Operations Manager David Roban were killed in the accident.

Crash of a Douglas C-47B-DK in Pickle Lake: 2 killed

Date & Time: May 11, 1987 at 1800 LT
Operator:
Registration:
C-FADD
Flight Type:
Survivors:
No
Schedule:
Big Trout Lake - Pickle Lake
MSN:
14879/26324
YOM:
1944
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
20284
Circumstances:
Douglas DC-3C C-FADD was returning to Pickle Lake from Big Trout Lake following delivery of a cargo of fuel. This was the third similar and last operation of the day. As the aircraft approached Pickle Lake, the pilot informed the company dispatch office that, prior to landing, he intended to carry out some local training for the benefit of the co-pilot who was scheduled to be upgraded to captain status the following month. The captain, a company training pilot, occupied the right seat. The aircraft entered a west to east holding pattern at the airport's NDB, descending in stages from 8,500 feet asl to 2,700 feet asl, the appropriate altitude for an instrument approach. The pilot transmitted that they would execute an NDB approach and subsequently reported during the procedure turn inbound to the airfield. About three minutes later, two other pilots flying in the vicinity observed the aircraft in a descent with the left wing folded upwards. The aircraft continued descending in an inverted attitude until it struck the ground.
Probable cause:
It was determined that the left wing failed under normal flight loads as a result of a fatigue crack in the centre section lower wing skin. Anomalies in the radiographs taken during mandatory non-destructive testing inspections were not correctly interpreted.

Crash of a Britten-Norman BN-2A-20 Islander off Toronto City: 1 killed

Date & Time: Jan 12, 1987 at 1110 LT
Type of aircraft:
Operator:
Registration:
C-GIRH
Survivors:
Yes
Schedule:
Saint Catharines – Toronto City
MSN:
404
YOM:
1974
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
While approaching Toronto City-Billy Bishop, the pilote declared an emergency following an engine failure. While trying to reach the airfield, he lost control of the airplane that crashed in Lake Ontario about 5,6 km southwest of the airport. Both occupants were seriously injured but the pilot died of hypothermia few hours later.
Probable cause:
Engine failure for unknown reasons.

Crash of a Cessna 411 in Oshawa

Date & Time: Dec 16, 1986
Type of aircraft:
Operator:
Registration:
C-GQSP
Flight Type:
Survivors:
Yes
Site:
MSN:
411-0141
YOM:
1965
Location:
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On approach to Oshawa Airport, the twin engine aircraft stalled and crashed in a house. Both pilots were seriously injured while both persons into the house were unhurt.

Crash of a De Havilland DHC-3 Otter near Pickle Lake

Date & Time: Sep 2, 1986
Type of aircraft:
Registration:
C-FBER
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
86
YOM:
1955
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Few minutes after takeoff from Pickle Lake, while in cruising altitude, the pilot hear a loud bang. The engine lost power then caught fire and failed. Unable to reach the nearest airport, the pilot attempted an emergency landing when the aircraft crashed in a swampy scrub, bursting into flames. Both occupants escaped uninjured while the aircraft was destroyed.
Probable cause:
The engine reduction gear assembly had failed as the result of lack of lubrication.

Crash of a Piper PA-60 Aerostar in Buttonville: 1 killed

Date & Time: Apr 17, 1986
Registration:
C-GCSM
Flight Phase:
Survivors:
Yes
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The aircraft was on its way to the south of the US with one pilot and four golfers on board. Shortly after takeoff from runway 15, while in initial climb, the aircraft stalled, hit trees and crashed in a field located 200 yards from the Woodbine Avenue. The pilot was killed while all four passengers were injured. The aircraft was destroyed.