Country

Crash of a Pilatus PC-12/47E in Whitehorse

Date & Time: Apr 17, 2023 at 1039 LT
Type of aircraft:
Operator:
Registration:
C-GMPX
Flight Type:
Survivors:
Yes
Schedule:
Whitehorse – Yellowknife
MSN:
1017
YOM:
2008
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The pilot departed Whitehorse-Erik Nielsen Airport Runway 32L on a positioning flight to Yellowknife. Shortly after takeoff, he declared an emergency and attempted to return. On short final, he lost control of the airplane that crashed within the airport boundary. The pilot was seriously injured and the airplane was destroyed.

Crash of a Cessna 208B Grand Caravan near Mayo: 2 killed

Date & Time: Aug 6, 2019 at 1113 LT
Type of aircraft:
Operator:
Registration:
C-FSKF
Flight Phase:
Survivors:
No
Site:
Schedule:
Rackla - Mayo
MSN:
208B-0673
YOM:
1998
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
1694
Captain / Total hours on type:
212.00
Aircraft flight hours:
19060
Circumstances:
At 1101 Pacific Daylight Time on 06 August 2019, the Alkan Air Ltd. Cessna 208B Grand Caravan aircraft (registration C‐FSKF, serial number 208B0673) departed Rau Strip, Yukon, on a visual flight rules company flight itinerary to Mayo Airport, Yukon. The aircraft had 1 pilot, 1 passenger, and cargo on board. At 1113, the aircraft entered instrument meteorological conditions and struck rising terrain in a box canyon shortly after. The crash occurred approximately 25 nautical miles east‐northeast of Mayo Airport, at an elevation of 5500 feet above sea level. The Canadian Mission Control Centre did not receive a signal from the aircraft’s 406 MHz emergency locator transmitter. Eyewitnesses from a nearby exploration camp arrived at the site after approximately 1 hour. Royal Canadian Mounted Police and emergency medical services arrived on site approximately 90 minutes after the accident. The pilot and passenger received fatal injuries. The aircraft was destroyed; there was a brief post‐impact fire.
Probable cause:
Findings as to causes and contributing factors:
These are conditions, acts or safety deficiencies that were found to have caused or contributed to this occurrence.
1. The pilot’s decision making was influenced by several biases and, as a result, the flight departed and subsequently continued into poor weather conditions in mountainous terrain.
2. The high speed at low altitude and low forward visibility reduced the opportunities for the pilot to take alternative action to avoid terrain.
3. Within the box canyon, the canyon floor elevation increased abruptly within less than 1 NM and the low visibility prevented the pilot from detecting this and taking sufficient actions to prevent collision with terrain.
4. When the pilot turned into the box canyon, the terrain awareness and warning system aural alerts were ineffective in warning the pilot about the rising terrain either because he had already heard multiple similar alerts in the preceding minutes, or because he had silenced the alerts.

Findings as to risk:
These are conditions, unsafe acts, or safety deficiencies that were found not to be a factor in this occurrence but could have adverse consequences in future occurrences.
1. If administrative safety defences are not used as intended, it increases the risk that the hazards associated with the flight will not be identified and mitigated.

Other findings:
These items could enhance safety, resolve an issue of controversy, or provide a data point for future safety studies.
1. The pilot held a valid instrument rating and the aircraft was equipped to fly in instrument meteorological conditions. However, there were no scenarios in the pilot’s flying history on the Cessna 208B Grand Caravan or in his training where a transition from visual flight rules to a flight under instrument flight rules in an emergency was performed.
Final Report:

Crash of a De Havilland DHC-3 Otter in Mayo: 1 killed

Date & Time: Mar 31, 2011 at 1507 LT
Type of aircraft:
Operator:
Registration:
C-GMCW
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Mayo - Rackla
MSN:
108
YOM:
1956
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
5000
Captain / Total hours on type:
3000.00
Aircraft flight hours:
16431
Circumstances:
The aircraft was being utilized in support of mineral exploration activities, to transport building materials, fuel, and winter camp supplies from Mayo, Yukon, to winter airstrips located at Withers Lake and Rackla River, Yukon. Withers Lake is located 113 statute miles (sm) east of Mayo, and Rackla Airstrip is located 94 sm northeast of Mayo (Appendix B). On the accident flight, the aircraft was transporting a load of twelve 6-inch by 6-inch wood timbers, each 16 feet long, and 2 barrels of jet fuel. The pilot had arrived at the Mayo Airport at about 0630 1 on the morning of the accident. The pilot’s first trip of the day was to Withers Lake, departing Mayo at 0834. The pilot completed 2 trips to Withers Lake and 1 trip to Rackla prior to the accident flight. The accident flight departed Mayo at 1448 under visual flight rules (VFR) on a company itinerary. At 1507 the Canadian Mission Control Centre (CMCC) received a 406-MHz emergency locater transmitter (ELT) alert. Joint Rescue Co-ordination Centre Victoria (JRCC Victoria) was notified at 1522. Aircraft operating in the area were alerted, and a commercial helicopter was dispatched from Ross River, Yukon, approximately 1 hour later to search for the aircraft. The helicopter crew located the aircraft wreckage at 1833 at about 4300 feet above sea level (asl), on a remote, snow-covered hillside 38 nautical miles (nm) northeast of Mayo.
Probable cause:
The aircraft departed controlled flight for reasons which could not be determined, and broke up due to high speed.
Final Report:

Crash of a De Havilland DHC-3 Otter in Mayo: 1 killed

Date & Time: Jun 2, 2007 at 1755 LT
Type of aircraft:
Operator:
Registration:
C-GZCW
Flight Phase:
Flight Type:
Survivors:
No
MSN:
108
YOM:
1956
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
4000
Captain / Total hours on type:
202.00
Circumstances:
The Black Sheep Aviation and Cattle Company de Havilland DHC-3T Turbo Otter (registration C-GZCW, serial number 447) had been loaded with a cargo of lumber at Mayo, Yukon. The aircraft was taxied to the threshold of Runway 06 and the pilot began the take-off roll at 1755 Pacific daylight time. At lift-off, the aircraft entered an extreme nose-up attitude and began to rotate to the right. Shortly thereafter, the aircraft struck the airport ramp. The pilot, who was the sole occupant of the aircraft, was fatally injured. A small post-impact fire was extinguished by first responders.
Probable cause:
Findings as to Causes and Contributing Factors:
1. The aircraft was loaded in a manner that resulted in the centre of gravity being aft of the rearward limit.
2. Because the cargo was not properly secured, it shifted towards the rear of the aircraft, resulting in the centre of gravity moving further aft, causing the aircraft to pitch up and stall.
Final Report:

Crash of a Beechcraft UC-45-J Expeditor in Swan Lake: 3 killed

Date & Time: Sep 13, 2001 at 1735 LT
Type of aircraft:
Operator:
Registration:
N45N
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Swan Lake – Mayo
MSN:
5715
YOM:
1943
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
700
Captain / Total hours on type:
200.00
Circumstances:
The privately owned and operated Beech UC45-J was flying out of an outfitter's camp located near Swan Lake, Yukon Territory. The aircraft departed the clay-and-gravel strip for Mayo with one pilot, two passengers, luggage, and a reported load of 800 pounds of moose and caribou meat. The aircraft accelerated down the runway in a normal fashion, with the tail becoming airborne first. The aircraft left the surface of the runway and began a steep climb, followed by a yaw and bank to the left. The aircraft entered the Pleasant Creek valley off the end of the runway in a near-vertical, nose-down attitude. An explosion occurred, followed by a plume of smoke. Two persons immediately attempted to rescue the pilot and the passengers but discovered the aircraft partly submerged in the creek and engulfed in flames from the post-crash fire. There were no survivors.
Probable cause:
Findings as to Causes and Contributing Factors:
1. The meat was loaded into the aircraft on a slippery surface and not adequately secured.
2. The manner in which the meat was loaded and secured most likely allowed the load to shift to the rear of the cabin during take-off. This rearward shift resulted in the loss of pitch control and an aerodynamic stall from which the pilot could not recover.
Other Findings:
1. The aircraft's C of G was most likely at or aft of the aft limit before engine start.
Final Report: