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Crash of a Pilatus PC-12/45 in Kasabonika

Date & Time: Nov 21, 2023 at 1938 LT
Type of aircraft:
Operator:
Registration:
C-GEOW
Survivors:
Yes
Schedule:
Sioux Lookout – Kasabonika
MSN:
244
YOM:
1999
Flight number:
BF712
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3133
Captain / Total hours on type:
2000.00
Copilot / Total flying hours:
690
Copilot / Total hours on type:
430
Circumstances:
The single engine airplane departed the Sioux Lookout Airport (CYXL), Ontario, at 1820LT on an instrument flight rules flight to the Kasabonika Airport (CYAQ), Ontario, with 2 pilots and 6 passengers on board. The captain was the pilot flying and the first officer (FO) was the pilot monitoring. On approach to CYAQ, the pilots conducted an area navigation approach to Runway 03, using the autopilot coupled with a GPS (global positioning system). The captain then turned off the autopilot at 1000 feet above ground level (AGL) per the aircraft’s pilot operating handbook (POH) limitation. The approach continued at 120 knots ground speed with the flaps set to 15°. The aircraft touched down approximately 1,200 feet beyond the threshold of Runway 03 at 102 knots ground speed. During the landing roll, the captain applied reverse thrust momentarily, which resulted in a slight yawing motion of the aircraft. The reverse thrust was returned to the idle position, and directional control was restored. The captain then fully applied the brakes; however, at 1938, the aircraft skidded and overshot the end of the runway. The aircraft came to rest approximately 350 feet beyond the runway surface. The aircraft cabin remained upright and intact. The passengers and crew were not injured and were able to egress though the main cabin door. The aircraft’s emergency locator transmitter activated.
Probable cause:
The weather conditions present and forecast during the occurrence showed winds moving westerly to become favorable for takeoffs and landings on Runway 21. The final approach was 120 knots ground speed during the last 500 feet of the approach. The aircraft crossed the threshold at 110 knots ground speed and touched down approximately 1200 feet beyond the threshold at 102 knots ground speed. The manufacturer’s landing performance specifications in the POH are provided for dry and paved runway conditions only. The Pilatus PC-12/45 aircraft’s normal approach speed for landing with 15° flaps is 98 KIAS. 14 However, the aircraft had an approach speed of 120 knots ground speed. Because the final approach ground speed exceeded the Pilatus PC-12’s landing performance charts found in the POH,15 it was not possible to calculate the distance the aircraft would have needed given these conditions. In addition, the charts in the POH do not provide compensation for gravel runways or for runway contaminants such as ice, rain, or snow. Based on calculations made using the aircraft’s landing performance charts, when landing with a 10-knot tailwind (the maximum charted tailwind) and without the use of reverse thrust, the aircraft would need 3458 feet of available runway.
Final Report:

Crash of a Cessna 208 Caravan I in Lake Seul

Date & Time: Mar 8, 2022 at 1310 LT
Type of aircraft:
Operator:
Registration:
C-GIPR
Flight Phase:
Survivors:
Yes
Schedule:
Sioux Lookout – Springpole Lake
MSN:
208-0343
YOM:
2001
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
1315
Captain / Total hours on type:
126.00
Circumstances:
On 08 March 2022, the Bamaji Air Inc. (Bamaji) wheel-equipped Cessna 208 Caravan aircraft (registration C-GIPR, serial number 20800343) was conducting a series of visual flight rules (VFR) flights from Sioux Lookout Airport (CYXL), Ontario. At 1031, after checking the aerodrome forecast (TAF) valid from 0900 to 2000, and the graphic area forecast (GFA) valid from 0600 to 1800, the pilot departed on a flight to an ice runway on Springpole Lake, Ontario, about 78 nautical miles (NM) north-northwest of CYXL. The aircraft returned to CYXL with 2 passengers at 1200. In preparation for a second flight to Springpole Lake, the pilot loaded approximately 900 pounds of freight into the cabin and secured it under a cargo net. The aircraft had 750 pounds of fuel remaining on board, which was sufficient for the planned flight. The pilot and 1 passenger boarded the aircraft. The pilot occupied the left cockpit seat and the passenger occupied the right cockpit seat. Both occupants were wearing the available 5-point-harness safety belt system. At 1250, a snow squall began to move across CYXL, reducing ground visibility. The pilot taxied the aircraft to a position on the apron and waited for the fast-moving snow squall to pass. At 1301, the pilot taxied the aircraft to Runway 34 and took off in visual meteorological conditions. The aircraft climbed to approximately 1800 feet above sea level (ASL), then, once clear of the control zone, it descended to approximately 1600 to 1700 feet ASL, roughly 500 to 600 feet above ground level (AGL), to remain below the overcast ceiling. As the aircraft began to cross Lac Seul, Ontario, the visibility straight ahead and to the west was good. However, when the aircraft was roughly midway across the lake, it encountered turbulence and immediately became enveloped in whiteout conditions generated by a snow squall. The pilot turned his head to inspect the left wing and saw that ice appeared to be accumulating on the leading edge. He turned his attention back to the flight instruments and saw that the altimeter was descending rapidly. He then pulled back on the control column to stop the descent; however, within a few seconds, the aircraft struck the frozen surface of Lac Seul, approximately 17 NM north-northwest of CYXL. The aircraft was substantially damaged. There was no fire. The aircraft occupants received minor injuries. The Artex Model Me406 emergency locator transmitter (ELT) activated on impact and the signal was detected by the Cospas-Sarsat satellite system. The Joint Rescue Coordination Centre in Trenton, Ontario, re-tasked a Royal Canadian Air Force aircraft that was in the area and 3 search and rescue technicians (SAR Techs) parachuted into the site within 1 hour of the accident. The aircraft occupants and the SAR Techs were extracted from the site by a civilian helicopter later that day.
Probable cause:
The accident occurred while the aircraft was crossing a large, frozen, snow-covered lake at low altitude. Other than some small islands and the distant treed shorelines, there were few features to provide visual references. The terrain, coupled with the snow squalls that were passing through the area generated circumstances conducive to the creation of localized whiteout conditions.
Final Report:

Crash of a Swearingen SA227AC Metro III in Red Lake: 5 killed

Date & Time: Nov 10, 2013 at 1829 LT
Type of aircraft:
Operator:
Registration:
C-FFZN
Survivors:
Yes
Schedule:
Sioux Lookout - Red Lake
MSN:
AC-785B
YOM:
1991
Flight number:
BLS311
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
5150
Captain / Total hours on type:
3550.00
Copilot / Total flying hours:
2200
Copilot / Total hours on type:
1060
Aircraft flight hours:
35474
Circumstances:
Flight from Sioux Lookout was uneventful till the final descent to Red Lake completed by night and in light snow with a ceiling at 2,000 feet and visibility 8 SM. On final approach to runway 26, crew reported south of the airport and declared an emergency. Shortly after this mayday message, aircraft hit power cables and crashed in flames in a dense wooded area located 800 meters south of the airport. Two passengers seating in the rear were seriously injured while all five other occupants including both pilots were killed.
Probable cause:
A first-stage turbine wheel blade in the left engine failed due to a combination of metallurgical issues and stator vane burn-through. As a result of the blade failure, the left engine continued to operate but experienced a near-total loss of power at approximately 500 feet above ground level, on final approach to Runway 26 at the Red Lake Airport. The crew were unable to identify the nature of the engine malfunction, which prevented them from taking timely and appropriate action to control the aircraft. The nature of the engine malfunction resulted in the left propeller being at a very low blade angle, which, together with the landing configuration of the aircraft, resulted in the aircraft being in an increasingly high drag and asymmetric state. When the aircraft’s speed reduced below minimum control speed (VMC), the crew lost control at an altitude from which a recovery was not possible.
Final Report:

Crash of a Beechcraft A100 King Air in Sioux Lookout

Date & Time: Dec 7, 1997 at 1505 LT
Type of aircraft:
Operator:
Registration:
C-GILM
Flight Type:
Survivors:
Yes
Schedule:
Winnipeg – Sioux Lookout
MSN:
B-124
YOM:
1972
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
A Voyageur Airways Beechcraft A100 aircraft, C-GILM, was on a flight from Winnipeg International Airport Winnipeg International Airport, MB (YWG) to Sioux Lookout Airport, ON (YXL). The crew of two pilots and two paramedics had completed a medevac flight and were returning to Sioux Lookout without a patient on board. The weather was reported to be: wind 060 degrees at two knots, visibility three statute miles in freezing drizzle, and ceiling overcast at 400 feet AGL. The First Officer was at the controls as they attempted two full NDB approaches for runway 34, each of which resulted in a missed approach. The captain then took control of the aircraft and conducted a full NDB approach for runway 34. On final approach, the crew had the runway in sight and the aircraft was lined up, but the aircraft was high on the approach. The captain called for full flap and pushed the props up to help slow the aircraft down. The aircraft developed a high rate of descent that was not fully countered before the aircraft contacted the runway firmly with the left main landing gear. The aircraft was taxied part way to the company ramp before the aircraft began pulling to the left very noticeably. The scissors had failed and the main wheels were turned slightly off-line. While conducting a heavy-landing inspection, company maintenance and operational personnel determined that in addition to the damage to the scissors for the left main landing gear, the rear spar of the left wing had failed in the vicinity of a pass-through hole for the flap actuator. The damage is reported to be overload in nature and consistent with the effects of landing hard on the left main wheel. During the approaches, the aircraft was above cloud during the penetration turns and was only in cloud during the final approach phases. A small amount of ice accumulated on the aircraft while in cloud (about 1/8th to 1/4 inch on the spinner remained after landing) but the de-ice equipment was working and was used.

Crash of a Beechcraft D18S near Sioux Lookout

Date & Time: Jul 6, 1996
Type of aircraft:
Operator:
Registration:
C-FBGO
Flight Phase:
Survivors:
Yes
Schedule:
Fort Frances – Granite Lake
MSN:
A-865
YOM:
1952
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft departed Fort Frances, Ontario, with the pilot and four passengers on a visual flight rules (VFR) flight to Granite Lake. The weather was overcast with good visibility on departure. However, about one-half of the way to Granite Lake, just north of Ignace, the pilot encountered an area of increasing rain and decreasing visibility. The pilot made several course deviations to find a route through the poor weather, but eventually could find neither a way out of the poor weather nor a lake with suitable conditions for landing. While manoeuvring at low level and with heavy rain obscuring the horizon, the pilot reported that the engines lost partial power because of carburettor icing. The pilot applied carburettor heat but was unable to restore engine power or sustain aircraft altitude. The pilot attempted to keep the aircraft level, and in a matter of seconds, the aircraft descended into the trees. The aircraft travelled approximately 500 feet through the trees; the left wing was torn off and a fuel-fed fire broke out almost immediately. All occupants survived the crash with minor injuries and exited the aircraft. The passenger occupying the copilot seat received burns to his upper body. The crash site was overflown about 15 minutes later by a second company pilot who transmitted a Mayday. The occupants were picked up by helicopter about one hour later
Probable cause:
The pilot continued the flight into adverse weather at low level and force-landed the aircraft into trees when the engines experienced a partial power loss that was probably caused by carburettor icing.
Final Report:

Crash of a Piper PA-31-350 Navajo Chieftain in Sioux Lookout: 5 killed

Date & Time: May 1, 1995 at 1330 LT
Operator:
Registration:
C-GYPZ
Flight Phase:
Survivors:
No
Schedule:
Sioux Lookout - Red Lake
MSN:
31-7652168
YOM:
1976
Flight number:
SNY3101
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
1250
Captain / Total hours on type:
1000.00
Aircraft flight hours:
6784
Circumstances:
Bearskin flight 362, a Fairchild Swearingen Metro 23, departed Red Lake, Ontario, at 1300 central daylight saving time (CDT), with two pilots and one passenger on board, en route to Sioux Lookout on an instrument flight rules (IFR) flight plan. At approximately 30 nautical miles (nm) north of Sioux Lookout, the flight was cleared by the Winnipeg area control centre (ACC) for an approach to the Sioux Lookout airport. Air Sandy flight 3101, a Piper Navajo PA-31, departed Sioux Lookout at 1323 with one pilot and four passengers on board en route to Red Lake on a visual flight rules (VFR) flight. The pilot of Air Sandy 3101 reported clear of the Sioux Lookout control zone at 1326. No other communication was heard from the Air Sandy flight. At 1315 the Winnipeg ACC controller advised the Sioux Lookout Flight Service specialist that Bearskin 362 was inbound from Red Lake, estimating Sioux Lookout at 1332. At 1327, Bearskin 362 called Sioux Lookout Flight Service Station (FSS) and advised them they had been cleared for an approach and that they were cancelling IFR at 14 nm from the airport. At 1328, as Sioux Lookout FSS was giving an airport advisory to Bearskin 362, the specialist heard an emergency locator transmitter (ELT) emit a signal on the emergency frequencies. Moments later, the pilot of Bearskin 305, a Beechcraft B-99 in the vicinity of Sioux Lookout, advised the specialist that he had just seen a bright flare in the sky and that he was going to investigate. The pilot of Bearskin 305 stated that the flare had fallen to the ground and a fire was burning in a wooded area. A communications search was initiated to locate Bearskin 362, but the aircraft did not respond. A Search and Rescue aircraft from Trenton, Ontario, and an Ontario Ministry of Natural Resources (MNR) helicopter were dispatched to the site. The source of the fire was confirmed to be the Air Sandy aircraft. The MNR helicopter noticed debris and a fuel slick on a nearby lake, Lac Seul. It was later confirmed that Bearskin 362 had crashed into the lake. (See Appendix A.) The two aircraft collided in mid-air at 1328 during the hours of daylight at latitude 50º14'N and longitude 92º07'W, in visual meteorological conditions (VMC). All three persons on board the Bearskin aircraft and all five persons on board the Air Sandy aircraft were fatally injured.
Probable cause:
Neither flight crew saw the other aircraft in time to avoid the collision. Contributing to the occurrence were the inherent limitations of the see-and-avoid concept which preclude the effective separation of aircraft with high closure rates, the fact that neither crew was directly alerted to the presence of the other aircraft by the Flight Service specialist or by onboard electronic equipment, and an apparent lack of pilot understanding of how to optimize avoidance manoeuvring.
Final Report:

Crash of a Swearingen SA227CC Metro 23 in Sioux Lookout: 3 killed

Date & Time: May 1, 1995 at 1330 LT
Type of aircraft:
Operator:
Registration:
C-GYYB
Survivors:
No
Schedule:
Red Lake - Sioux Lookout
MSN:
CC-827B
YOM:
1993
Flight number:
BLS362
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
7330
Captain / Total hours on type:
580.00
Copilot / Total flying hours:
2810
Copilot / Total hours on type:
355
Aircraft flight hours:
3200
Circumstances:
Bearskin flight 362, a Fairchild Swearingen Metro 23, departed Red Lake, Ontario, at 1300 central daylight saving time (CDT), with two pilots and one passenger on board, en route to Sioux Lookout on an instrument flight rules (IFR) flight plan. At approximately 30 nautical miles (nm) north of Sioux Lookout, the flight was cleared by the Winnipeg area control centre (ACC) for an approach to the Sioux Lookout airport. Air Sandy flight 3101, a Piper Navajo PA-31, departed Sioux Lookout at 1323 with one pilot and four passengers on board en route to Red Lake on a visual flight rules (VFR) flight. The pilot of Air Sandy 3101 reported clear of the Sioux Lookout control zone at 1326. No other communication was heard from the Air Sandy flight. At 1315 the Winnipeg ACC controller advised the Sioux Lookout Flight Service specialist that Bearskin 362 was inbound from Red Lake, estimating Sioux Lookout at 1332. At 1327, Bearskin 362 called Sioux Lookout Flight Service Station (FSS) and advised them they had been cleared for an approach and that they were cancelling IFR at 14 nm from the airport. At 1328, as Sioux Lookout FSS was giving an airport advisory to Bearskin 362, the specialist heard an emergency locator transmitter (ELT) emit a signal on the emergency frequencies. Moments later, the pilot of Bearskin 305, a Beechcraft B-99 in the vicinity of Sioux Lookout, advised the specialist that he had just seen a bright flare in the sky and that he was going to investigate. The pilot of Bearskin 305 stated that the flare had fallen to the ground and a fire was burning in a wooded area. A communications search was initiated to locate Bearskin 362, but the aircraft did not respond. A Search and Rescue aircraft from Trenton, Ontario, and an Ontario Ministry of Natural Resources (MNR) helicopter were dispatched to the site. The source of the fire was confirmed to be the Air Sandy aircraft. The MNR helicopter noticed debris and a fuel slick on a nearby lake, Lac Seul. It was later confirmed that Bearskin 362 had crashed into the lake. (See Appendix A.) The two aircraft collided in mid-air at 1328 during the hours of daylight at latitude 50º14'N and longitude 92º07'W, in visual meteorological conditions (VMC). All three persons on board the Bearskin aircraft and all five persons on board the Air Sandy aircraft were fatally injured.
Probable cause:
Neither flight crew saw the other aircraft in time to avoid the collision. Contributing to the occurrence were the inherent limitations of the see-and-avoid concept which preclude the effective separation of aircraft with high closure rates, the fact that neither crew was directly alerted to the presence of the other aircraft by the Flight Service specialist or by onboard electronic equipment, and an apparent lack of pilot understanding of how to optimize avoidance manoeuvring.
Final Report:

Crash of a Beechcraft A100 King Air in Big Trout Lake

Date & Time: Feb 21, 1995 at 1248 LT
Type of aircraft:
Operator:
Registration:
C-GYQT
Survivors:
Yes
Schedule:
Sioux Lookout - Big Trout Lake
MSN:
B-189
YOM:
1974
Flight number:
BLS324
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
5000
Captain / Total hours on type:
1500.00
Copilot / Total flying hours:
2300
Copilot / Total hours on type:
800
Aircraft flight hours:
13739
Circumstances:
The crew of the Beechcraft A100, C-GYQT, were conducting a scheduled flight from Sioux Lookout, Ontario, to Big Trout Lake, Ontario, as Bearskin (BLS) 324. BLS324 departed Sioux Lookout with nine passengers and a crew of two at 1133 central standard time (CST) and arrived in the vicinity of Big Trout Lake at approximately 1240. The captain briefed an instrument approach with a circling procedure to runway 14. On descent to the radio beacon, the crew reportedly encountered flight visibilities of one mile and were in visual contact with the ground. When the aircraft was less than five miles from the airport, the crew heard a position report from another aircraft completing an approach to the airport. To ensure safe separation from the aircraft ahead, the captain elected to fly under visual flight rules to the southwest of the airport. Air Traffic Services radar data was obtained from the Big Trout Lake radar source. The radar data indicated that the crew descended to about 150 feet above ground level (agl) approximately 4.5 miles from the end of the landing runway and maintained 200 to 300 feet agl for some 50 seconds prior to impact. Immediately prior to impact, the radar data indicated that the aircraft was about 3 1/2 miles from the runway at about 300 feet agl and descending at more than 1,200 feet per minute. Throughout the approach, the first officer flew the aircraft visually with occasional reference to his instruments, while the captain navigated and maintained terrain clearance by visual reference to the terrain and issued instructions to the first officer. At approximately five miles from the runway, the crew turned onto the extended centre line of the runway and received a radio report from the other aircraft of local visibilities of less than 1/2 mile. The aircraft flew inbound over a wide expanse of lake, and the captain lowered the flaps in preparation for landing. Shortly thereafter, the captain became concerned with the reducing visibility and looked in the Company Approach Procedures binder that he held on his lap. The captain was aware of the danger of whiteout and intended to revert to instrument flight if whiteout were encountered. He had not previously removed the approach chart for Big Trout Lake and clipped it in the approach chart holder because he had discovered that the binder rings were broken and taped shut when he had performed his initial approach briefing. He intended to provide new approach information to the first officer so that a full instrument approach could be initiated from their current position. When the captain looked up from the binder, he observed the altimeter indicating a descent through 1,000 feet above sea level (asl) and called to the first officer, "Watch your altitude." Before a recovery could be initiated, the aircraft struck the frozen surface of the lake and bounced into the air. The captain initiated a recovery and then, concerned with the airworthiness of the aircraft, reduced power and attempted to land straight ahead. The aircraft crashed onto the frozen surface of the lake about 3/4 mile beyond the initial impact location. All passengers and crew survived the accident. However, the crew and several passengers sustained serious injuries. Rescuers from the local community reached the aircraft about two hours after the crash and all survivors were rescued within four hours. The more seriously injured were experiencing the effects of hypothermia when rescued. The accident occurred at 1248 CST, approximately three miles northwest of Big Trout Lake Airport, at latitude 53°49'N, longitude 089°53'W, at an elevation of 690 feet asl.
Probable cause:
While the crew were manoeuvring the aircraft to land and attempting to maintain visual flying conditions in reduced visibility, their workload was such that they missed, or unknowingly discounted, critical information provided by the altimeters and vertical speed indicators. Contributing factors were the whiteout conditions and the crew's decision to fly a visual approach at low altitude over an area where visual cues were minimal and visibility was reduced.
Final Report:

Crash of a Consolidated PBY-6A Catalina off Sioux Lookout

Date & Time: Jul 12, 1981
Type of aircraft:
Registration:
C-GFFJ
Flight Type:
Survivors:
Yes
Schedule:
Sioux Lookout - Sioux Lookout
MSN:
2067
YOM:
1944
Flight number:
Tanker 9
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was engaged in a fire fighting mission in the region of Sioux Lookout and was completing a scooping maneuver on Lake Jackson when the airplane crashed in unknown circumstances. Both pilots were injured and the aircraft was destroyed.

Crash of a De Havilland DHC-3 Otter in Carling Lake

Date & Time: May 24, 1980
Type of aircraft:
Registration:
C-FGBX
Flight Phase:
Survivors:
Yes
Schedule:
Carling Lake - Sioux Lookout
MSN:
004
YOM:
1952
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
11082
Circumstances:
Shortly after takeoff from Carling Lake, while climbing to an altitude of about 200 feet, the engine failed. The aircraft lost speed and height then contacted trees and crashed on the shore. All eight occupants were able to evacuate and were uninjured while the aircraft was totally destroyed by a post crash fire.
Probable cause:
The possibility that the aircraft stalled on climb out and that the pilot could not recover in time to prevent a collision with the trees cannot be discounted.