Flight

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.

The pilot, sole on board, departed Nîmes-Garons Airport at 1648LT on a fire fighting mission over Générac, a village located about 5 km southwest of the airbase. While approaching the zone to be treated, the twin engine airplane struck trees and crashed, bursting into flames. The aircraft was destroyed by impact forces and a post crash fire and the pilot was killed. At the time of the accident, the visibility was reduced due to thick smoke.

The twin engine airplane departed Chaklala-Nur Khan AFB with five crew members on board for a local training flight. In flight, it went out of control and crashed onto several houses located in the suburb of Mora Kalu, about 10 km south of Chaklala-Nur Khan AFB, Islamabad, bursting into flames. The aircraft and several houses were destroyed. All five crew members as well as 14 people on the ground were killed.

En route from Vancouver to Pender Harbour, the pilot encountered engine problems and elected to ditch the aircraft about three miles off Sechelt. All three occupants were able to evacuate the cabin before the aircraft sank and was lost. All three occupants were rescued.

En route from Malabo to Bata, the crew encountered poor weather conditions when the airplane crashed in unknown circumstances into the sea few km off Kribi, South Cameroon. All seven occupants were rescued while the aircraft sank and was lost.

Seair Seaplanes (Seair) was contracted by a remote fishing lodge on the central coast of British Columbia (BC) (Figure 1) to provide seasonal transport of guests and supplies between Vancouver International Water Aerodrome (CAM9), BC, and the lodge, which is located about 66 nautical miles (NM) north-northwest of Port Hardy Airport (CYZT), BC, and about 29 NM southeast of Bella Bella (Campbell Island) Airport (CBBC), BC. On 26 July 2019, the occurrence pilot arrived at Seair’s CAM9 base at approximately 0630. Over the next hour, the pilot completed a daily inspection of the Cessna 208 Caravan aircraft (registration C-GURL, serial number 20800501), added 300 L of fuel to the aircraft, and began flight planning activities, which included gathering and interpreting weather information. On the morning of the occurrence, 4 Seair visual flight rules (VFR) flights were scheduled to fly to the central coast of BC, all on Caravan aircraft: C-GURL (the occurrence aircraft) was to depart CAM9 at 0730, C-GSAS at 0745, C-FLAC at 0800, and C-GUUS at 0900. The first 3 flights were direct flights to the fishing lodge, while the 4th flight had an intermediate stop at the Campbell River Water Aerodrome (CAE3), BC, to pick up passengers before heading to a research institute located approximately 4 NM southwest of the fishing lodge. Because of poor weather conditions in the central coast region, however, all of the flights were delayed. After the crews referred to weather cameras along the central coast region, the flights began to depart, but in a different order than originally scheduled. It is not uncommon for the order of departure to change when groups of aircraft are going to the same general location. One of Seair’s senior operational staff (operations manager) departed CAM9 at 0850 aboard C-FLAC. C-GUUS, bound for the research institute, departed CAM9 next at 0906, and then the occurrence aircraft departed at 0932 (Table 1). The pilot originally scheduled to fly C-GSAS declined the flight. This pilot had recently upgraded to the Caravan, had never flown to this destination before, and was concerned about the weather at the destination. When Seair’s chief pilot returned to CAM9 at 0953 after a series of scheduled flights on a different type of aircraft, he assumed the last remaining flight to the lodge and C-GSAS departed CAM9 at 1024.After departing the Vancouver terminal control area, the occurrence aircraft climbed to 4500 feet above sea level (ASL) and remained at this altitude until 1023, when a slow descent was initiated. The aircraft levelled off at approximately 1300 feet ASL at 1044, when it was approximately 18 NM northeast of Port Hardy Airport (CYZT), BC, and 57 NM southeast of the destination. At 1050, the occurrence aircraft slowly descended again as the flight continued northbound. During this descent, the aircraft’s flaps were extended to the 10° position. At this point, the occurrence aircraft was 37 NM south-southeast of the fishing lodge. The aircraft continued to descend until it reached an altitude of approximately 330 feet ASL, at 1056. By this point, the occurrence aircraft was being operated along the coastline, but over the ocean. C-FLAC departed from the fishing lodge at 1056 on the return flight to CAM9. C-FLAC flew into the Fitz Hugh Sound and proceeded southbound along the western shoreline. At approximately 1100, it flew through an area of heavy rain where visibility was reduced to about 1 statute mile (SM). C-FLAC descended to about 170 feet ASL and maintained this altitude for the next 5 minutes before climbing to about 300 feet ASL. As the southbound C-FLAC entered Fitz Hugh Sound from the north at Hecate Island, the occurrence aircraft entered Fitz Hugh Sound from the south, near the southern tip of Calvert Island. The occurrence aircraft then changed course from the western to the eastern shoreline, and descended again to about 230 feet ASL (Figure 2), while maintaining an airspeed of approximately 125 knots. The 2 aircraft established 2-way radio contact. The pilot of C-FLAC indicated that Addenbroke Island was visible when he flew past it, and described the weather conditions in the Fitz Hugh Sound to the occurrence pilot as heavy rain showers and visibility of approximately 1 SM around Kelpie Point. The occurrence pilot then indicated that he would maintain a course along the eastern shoreline of the sound. At 1103, the 2 aircraft were separated by 2 NM and passed each other on reciprocal tracks, approximately 4 NM south of the accident site. The occurrence aircraft maintained a consistent track and altitude for the next 54 seconds, then slowly began a 25° change in track to the west (0.35 NM from the Addenbroke Island shoreline). Seven seconds after the turn started (0.12 NM from the island’s shoreline), the aircraft entered a shallow climb averaging 665 fpm. At 1104:55, the occurrence aircraft struck trees on Addenbroke Island at an altitude of approximately 490 feet ASL, at an airspeed of 114 knots, and in a relatively straight and level attitude. The aircraft then continued through the heavily forested hillside for approximately 450 feet, coming to rest at an elevation of 425 feet ASL, 9.7 NM east-southeast of the destination fishing lodge. The pilot and three passengers were killed and five other occupants were injured, four seriously.

The pilot, sole on board, was engaged in an aerial photography mission. In flight, he encountered engine problems and was forced to attempt an emergency landing. The aircraft crashed onto a barn located in Novoshchedrinskaya, about 15 km north of Gudermes. The pilot and three people in the barn were injured.

The purpose of the flight was to drop eight parachutists from flight level 130 (an altitude of 13,000 feet, approximately 4,000 metres). The load sheet that the pilot received did not contain any information about the individual weights of the parachutists or the total mass of the load. The pilot could thus not, with any help from the load sheet, check or make his own calculation of mass and balance before the flight. The aeroplane was approaching the airport and, at 14:05 hrs, the pilot requested permission to drop the parachutists slightly higher because of clouds. The airspeed was decreasing in conjunction with the aeroplane’s approach to the airport. Just over a kilometre from the airport where the jump point was located, the aeroplane suddenly changed direction to the left and began descending rapidly in almost the opposite direction. The aeroplane then travelled just under one kilometre at the same time as it descended 1,500 metres, which is a dive angle of over 45 degrees. The aeroplane broke up in the air as both the airspeed and the g-forces exceeded the permitted values for the aeroplane. From an altitude of 2,000 metres, the aeroplane fell almost vertically with a descent velocity of around 60 m/s. The fact that no one was able to get out and save themselves using their parachute was probably due to the g-forces and the rotations that occurred. All those on board remained in the aeroplane and died immediately upon impact.

At approximately 1000LT on 12 July 2019, a private de Havilland DHC-2 Mk. 1 Beaver floatplane (registration C‑GRHF, serial number 1123) took off from the St-Mathias Water Aerodrome (CSV9), Quebec, with only the pilot on board, for a series of visual flight rules (VFR) flights. The aircraft landed at approximately 1130 on Désert Lake in La Minerve, Quebec, and came alongside a private dock where 3 individuals were waiting to board and fly to a fishing lodge. Once the baggage was stowed on the aircraft, the pilot provided a safety briefing to the passengers, who were all wearing a personal flotation device. The aircraft took off from Désert Lake at approximately 1215, bound for the Barrage Gouin Water Aerodrome (CTP3), Quebec, where the aircraft was scheduled to be refuelled. The aircraft landed at approximately 1430. Once the refuelling was complete, the aircraft took off once again around 1528, headed northwest to Weakwaten Lake, Quebec, where the fishing lodge was located. After approximately 48 minutes of flight, at around 1616, the aircraft collided with trees and struck the ground. There was no post-impact fire. The emergency locator transmitter was activated by the force of impact, and began transmitting a signal on frequency 121.5 MHz. This signal was detected by the flight crew of a commercial airliner at 1705 and reported to air traffic services. At 1850, the Joint Rescue Coordination Centre in Trenton dispatched a CC130 Hercules aircraft to try to locate the distress signal. The occurrence aircraft was found in a densely wooded area at 2032. Two search and rescue technicians were parachuted to rescue the aircraft occupants. Three of the 4 occupants received fatal injuries. The survivor was evacuated and transported to the hospital in Chibougamau, Quebec.

The crew was completing chemical work to protect sunflower crop from pests. This was the eighth sortie of the day. Shortly after takeoff, while climbing to a height of 20-30 metres, the engine lost power and the airplane started to lose altitude. No suitable terrain was available for an emergency landing. The airplane collided with trees and crashed in a wooded area, bursting into flames. Both crew members escaped uninjured while the aircraft was totally destroyed by a post crash fire.