Crash of a Havilland DHC-3 Turbo Otter in Yellowknife

Date & Time: Jun 24, 2005 at 1912 LT
Type of aircraft:
Operator:
Registration:
C-FXUY
Flight Phase:
Survivors:
Yes
Schedule:
Yellowknife - Blachford Lake
MSN:
142
YOM:
1956
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The Air Tindi Ltd. de Havilland DHC-3T (Turbo) Otter (registration C-FXUY, serial number 142) water taxied from the Air Tindi dock at Yellowknife, Northwest Territories, for a charter flight to Blachford Lake. The aircraft was loaded with two crew members, seven passengers, and 840 pounds of cargo. Before the flight, the pilot conducted a preflight passenger briefing, which included information about the location of life preservers and emergency exits. During the take-off run, at about 1912 mountain daylight time, the aircraft performed normally. It became airborne at about 55 mph, which is lower than the normal take-off speed of 60 mph. The pilot applied forward control column to counter the pitch-up tendency, but there was no response. He then trimmed the nose forward, but the aircraft continued to pitch up until it stalled at about 50 feet above the water and the left wing dropped. The aircraft struck the water in the East Bay in a nose-down, 45/ left bank attitude. On impact, the left wing and left float detached from the aircraft, and the aircraft came to rest on its left side. The crew was able to evacuate the passengers before the aircraft submerged, and local boaters assisted in the rescue. There were no serious injuries to the crew or passengers. The aircraft suffered substantial damage.
Probable cause:
Findings as to Causes and Contributing Factors:
1. The aircraft was loaded in such a manner that the C of G was beyond the rearward limit. This resulted in the aircraft’s aerodynamic pitch control limitation being exceeded.
2. A weight and balance report was not completed by the pilot prior to departure and, as a consequence, he was unaware of the severity of the aft C of G position.
Finding as to Risk:
1. The weight of the passengers was underestimated due to the use of standard weights. This increased the potential of inadvertently loading the aircraft in excess of its maximum certified take-off weight.
Final Report:

Crash of a Douglas C-54E-15-DO Skymaster in Diavik

Date & Time: Aug 28, 2002 at 1650 LT
Type of aircraft:
Operator:
Registration:
C-GQIC
Flight Type:
Survivors:
Yes
Schedule:
Yellowknife – Diavik
MSN:
27343
YOM:
1944
Flight number:
BFL928
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On final approach to Diavik Airport, the four engine aircraft was too low. This caused the undercarriage to struck the ground about one metre short of runway 10 threshold. On impact, the undercarriage were torn off and the aircraft slid on the runway for almost 300 metres then lost its right wing and rotated to the right before coming to rest, bursting into flames. Both pilots escaped with minor injuries and the aircraft was destroyed.

Crash of a Piper PA-31-350 Navajo Chieftain in Fort Liard: 3 killed

Date & Time: Oct 15, 2001 at 2233 LT
Operator:
Registration:
C-GIPB
Survivors:
Yes
Schedule:
Yellowknife – Fort Liard
MSN:
31-7852170
YOM:
1978
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
1157
Captain / Total hours on type:
77.00
Aircraft flight hours:
11520
Circumstances:
A Piper PA-31 Navajo Chieftain, C-GIPB, serial number 31-7852170, departed Yellowknife, Northwest Territories, at 2043 mountain daylight time on a night instrument flight rules (IFR) charter flight to Fort Liard. One pilot and five passengers were on board. On arrival at Fort Liard, in conditions of moderate to heavy snow, the pilot initiated a non-directional beacon approach with a circling procedure for Runway 02. At about 2233, the aircraft struck a gravel bar on the west shoreline of the Liard River, 1.3 nautical miles short of the threshold of Runway 02, and 0.3 nautical mile to the left of the runway centreline. The aircraft sustained substantial damage, but no fire ensued. Three passengers were fatally injured, and the pilot and two passengers were seriously injured. The emergency locator transmitter activated and was received by the search and rescue satellite system, and two Canadian Forces aircraft were dispatched to conduct a search. The wreckage was electronically located the following morning, and a civilian helicopter arrived at the accident site approximately 10 hours after the occurrence.
Probable cause:
Findings as to Causes and Contributing Factors:
1. For undetermined reasons, the pilot did not maintain adequate altitude during a night circling approach in IMC and the aircraft struck the ground.
2. The pilot and front seat passenger were not wearing available shoulder harnesses, as required by regulation, which likely contributed to the severity of their injuries.
Findings as to Risk:
1. The aircraft was not fitted with, and was not required to be fitted with, a GPWS or a radio altimeter.
2. The pilot used an unauthorized remote altimeter setting that would have resulted in the cockpit altimeters reading approximately 200 feet higher than the actual altitude.
3. The pilot did not meet the night recency requirements necessary to carry passengers, as specified in CAR 401.05 (2).
4. Risk management responsibilities had been placed almost entirely on the pilot.
5. While the company had taken the voluntary initiative to appoint a safety officer, and appeared to have a safety program in place, the program may not have been directed at the needs.
Other Findings:
1. Approximately 28 hours of flight time that the pilot had logged as multi-engine dual would not have qualified as flight experience for the issue of a higher license.
2. CAR do not define 'flight familiarization', 'flight experience', or 'dual', and therefore do not address flight time 'quality'.
3. Opportunities for local community searchers to identify and access the accident site earlier were hampered by initial inaccurate SARSAT location information, by the time required to locate SAR aircraft to the Fort Liard area, and by darkness and poor weather conditions.
4. The decreased time required to alert the SAR system and the higher degree of accuracy permitted by the utilization of a 406 MHz ELT, particularly one interfaced with the onboard GPS, would have likely permitted rescuers to access the site in a more timely manner.
5. 703 Air Taxi operations continue to have a much higher accident rate than 704 Commuter and 705 Airline operations.
Final Report:

Crash of a Boeing 737-210C in Yellowknife

Date & Time: May 22, 2001 at 1325 LT
Type of aircraft:
Operator:
Registration:
C-GNWI
Survivors:
Yes
Schedule:
Edmonton – Yellowknife
MSN:
21066
YOM:
1975
Flight number:
7F953
Country:
Crew on board:
6
Crew fatalities:
Pax on board:
98
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
16400
Captain / Total hours on type:
7000.00
Copilot / Total flying hours:
9500
Copilot / Total hours on type:
840
Circumstances:
First Air Flight 953, a Boeing 737-210C, serial number 21066, was on a scheduled flight from Edmonton, Alberta, to Yellowknife, Northwest Territories. On board were 2 flight crew, 4 cabin crew, and 98 passengers. The flight departed Edmonton at 1130 mountain daylight time, with an estimated time en route of 1 hour 35 minutes. As the aircraft approached Yellowknife, the spoilers were armed, and the aircraft was configured for a visual approach and landing on Runway 33. The computed Vref was 128 knots, and target speed was 133 knots. While in the landing flare, the aircraft entered a higher-than-normal sink rate, and the pilot flying (the first officer) corrected with engine power and nose-up pitch. The aircraft touched down on the main landing gear and bounced twice. While the aircraft was in the air, the captain took control and lowered the nose to minimize the bounce. The aircraft landed on its nose landing-gear, then on the main gear. The aircraft initially touched down about 1300 feet from the approach end of Runway 33. Numerous aircraft rubber scrub marks were present in this area and did not allow for an accurate measurement. During the third touchdown on the nose landing-gear, the left nose-tire burst, leaving a shimmy-like mark on the runway. The aircraft was taxied to the ramp and shut down. The aircraft was substantially damaged. There were no reported injuries to the crew or the passengers. The accident occurred at 1325, during the hours of daylight.
Probable cause:
Findings as to Causes and Contributing Factors:
1. Incorrect bounced landing recovery procedures were carried out when the captain pushed forward on the control column to prevent a further bounce, and the aircraft landed nosewheel first.
2. The high sink rate on the initial flare was not recognized and corrected in time to prevent a bounced landing and a subsequent bounced landing.
Other Findings:
1. The power increase during the flair resulted in the speedbrake/spoilers retracting.
2. The captain had not received a line check of at least three sectors before returning to flight duties, although this check was required to regain competency after pilot proficiency check expiry.
Final Report:

Crash of a De Havilland DHC-6 Twin Otter 200 in Yellowknife: 2 killed

Date & Time: Feb 24, 1976
Operator:
Registration:
C-FBQJ
Survivors:
Yes
Schedule:
Port Radium - Yellowknife
MSN:
143
YOM:
1968
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
While descending to Yellowknife Airport, the pilot encountered whiteout conditions. The airplane went out of control and crashed in a wooded area located few km from the airfield. A passenger was injured while two other occupants were killed.

Crash of a Beechcraft D18 near Hottah Lake: 3 killed

Date & Time: Nov 8, 1972
Type of aircraft:
Operator:
Registration:
CF-RLD
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Cambridge Bay – Yellowknife
MSN:
A-626
YOM:
1951
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The twin engine airplane departed Cambridge Bay on a mercy flight to Yellowknife, carrying two Inuit patients and a nurse. In unknown circumstances, the aircraft crashed near Hottah Lake, in the region of Great Bear Lake, some 300 km north of Yellowknife. The nurse and a patient were killed while the pilot and the second patient, a boy aged 14, were injured. As the pilot suffered broken bones, the boy helped keep him alive by building a fire and shelter. The pilot resorted to eating flesh from one of the dead passengers while the boy abstained. About three weeks after the accident, the boy died of hunger and cold. On December 7, 1972 a Hercules on a routine mission picked up the ELT of the crashed plane. Shortly after two rescue specialists were dropped but unfortunately only the pilot was still alive.

Crash of a Fairchild F27J in Resolute Bay

Date & Time: Jun 12, 1968
Type of aircraft:
Operator:
Registration:
CF-GND
Survivors:
Yes
Schedule:
Yellowknife – Sherrard Bay
MSN:
113
YOM:
1965
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew departed Yellowknife Airport on a schedule flight to Sherrard Bay, on Melville Island. En route, he was informed that a landing at Sherrard Bay Airstrip was impossible due to strong winds and was rerouted to Resolute Bay. On final, both engines failed and the crew was forced to attempt an emergency landing. The aircraft belly landed few km south of the airfield, slid for several yards and came to rest, broken in two. All 12 occupants were rescued while the aircraft was written off.
Probable cause:
Double engine failure on final approach caused by fuel exhaustion.

Crash of a Bristol 170 Freighter 31 near Thorhild: 2 killed

Date & Time: Sep 17, 1955 at 0050 LT
Type of aircraft:
Operator:
Registration:
CF-GBT
Flight Phase:
Survivors:
Yes
Schedule:
Edmonton – Yellowknife
MSN:
12831
YOM:
1947
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
At 0021LT the aircraft departed Edmonton for Yellowknife with a crew of two, four passengers and a cargo of freight. An IFR flight plan had been filed for the flight to be made at 5,000 feet over Blue Air Route No. 84. Clearance out of the Edmonton Control Area was given to the aircraft but VFR was to be maintained while in the area. About twenty-two minutes after take-off, the tower at Namao heard a distress message from the aircraft indicating that the starboard engine had failed and that the aircraft was returning to Edmonton at 3,000 feet. Two minutes later another distress message was picked up by Namao stating that the aircraft was returning to Edmonton. Two-way communication with the aircraft was not established and although Namao and Edmonton continued to call the aircraft for more than thirty minutes, nothing further was heard from it. Although hampered by darkness and poor weather conditions, an air and ground search was started almost immediately but without success, until shortly after first light when the wreckage was found in a farm field about ten miles north of Thorhild. The captain and one passenger had been killed and the copilot and three other passengers were seriously injured. The aircraft was destroyed.
Probable cause:
For reasons not as yet determined, the starboard engine failed and as a result of being overloaded, the aircraft did not maintain altitude on one engine and struck the ground with the starboard wing tip. A further contributory factor was considered to be the failure of the copilot's vacuum-driven gyro instruments, without his knowledge.
Final Report:

Crash of an Avro 685 York C.1 in Yellowknife

Date & Time: Apr 11, 1955
Type of aircraft:
Operator:
Registration:
CF-HMZ
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
MW147
YOM:
1945
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Shortly after takeoff from Yellowknife Airport, while climbing, the four engine aircraft stalled and crashed in a snow covered field. Both crew members were injured and the aircraft was destroyed.

Crash of an Avro 652A Anson V in Yellowknife: 2 killed

Date & Time: Feb 6, 1951
Type of aircraft:
Registration:
CF-EKJ
Flight Phase:
Survivors:
No
Schedule:
Yellowknife – Fort Rae – Martin Lake
MSN:
MDF-287
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
3820
Circumstances:
Shortly after takeoff from Yellowknife Airport, the twin engine aircraft encountered serious difficulties to gain height. It then hit a building and crashed. Both crew members who were performing an on-demand cargo flight were killed.
Probable cause:
It was determined that the total weight of the aircraft was 1,400 pounds above the MTOW. Investigations revealed that the aircraft was parked on the ramp for six days prior to the accident and the crew failed to deice the plane before departure. No deicing, defrosting or contaminent removal was performed prior to departure. In such conditions, the aircraft failed to gain height due to a loss of lift, loss of aerodynamic performances and a subsequent overload.
Final Report: