Crash of a Cessna 414A Chancellor near Calgary: 1 killed

Date & Time: Sep 23, 2003 at 1936 LT
Type of aircraft:
Operator:
Registration:
C-GVZE
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Cranbrook – Calgary
MSN:
414A-0219
YOM:
1979
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
4375
Captain / Total hours on type:
2780.00
Aircraft flight hours:
8377
Circumstances:
The Alta Flights Cessna 414A (registration C-GVZE, serial number 414A0219) departed Cranbrook, British Columbia, at approximately 1910 mountain daylight time (MDT) on a visual flight rules cargo flight to Calgary, Alberta. The aircraft disappeared from the Calgary area radar at 1936 MDT, at an indicated altitude of 9000 feet above sea level (asl) in the Highwood Range mountains, approximately 49 nautical miles southwest of Calgary. The aircraft wreckage was found on a mountain ridge at 8900 feet asl some 40 hours later. The flight was in controlled descent to Calgary when the impact occurred. There was a total break-up of the aircraft, and the pilot, the lone occupant, was fatally injured. There was a brief fireball at the time of impact.
Probable cause:
Findings as to Causes and Contributing Factors:
1. The pilot lost situational awareness most likely believing he was over lower terrain.
2. The aircraft was very likely flown into cloud during a day VFR flight, which prevented the pilot from seeing and avoiding the terrain.
Findings as to Risk:
1. The aircraft was not required by regulation to have terrain avoidance equipment installed, leaving the pilot with no last defence for determining the aircraft's position relative to the terrain. This is a risk for all aircraft operated in similar conditions.
Other Findings:
1. The flight plan was prematurely closed by NAV CANADA, which caused the early stoppage of SAR activities and delayed the recommencement of those searches by two hours.
Final Report:

Crash of a Lockheed L-188A Electra in Cranbrook: 2 killed

Date & Time: Jul 16, 2003 at 1221 LT
Type of aircraft:
Operator:
Registration:
C-GFQA
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Cranbrook - Cranbrook
MSN:
1040
YOM:
1959
Flight number:
Tanker 86
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
38775
Circumstances:
The aircraft took off from Runway 16 at the Cranbrook Airport, British Columbia. Two pilots were on board to conduct a fire-management mission on a small ground fire (designated N10156) two nautical miles southwest of the township of Cranbrook. Seven minutes earlier, the partner “bird dog” aircraft, a Turbo Commander, also departed Cranbrook to assess the appropriate aircraft flight path profiles and to establish the most suitable fire-retardant delivery program for the ground fire. Following the flight path demonstrations by the bird dog aircraft, Tanker 86 proceeded to carry out the retardant drop on the fire. After delivering the specified retardant load, Tanker 86 was seen to turn right initially then entered a turn to the left. At 1221 MST, the Electra struck the terrain on the side of a steep ridge at about 3900 feet above sea level. The aircraft exploded on impact and the two pilots were fatally injured. An intense post-crash fire consumed much of the wreckage and started a forest fire at the crash site and the surrounding area. The on-board emergency locator transmitter was damaged by the impact forces and did not activate.
Probable cause:
Findings as to Causes and Contributing Factors:
1. For undetermined reasons, the Electra did not climb sufficiently to avoid striking the rising terrain.
2. Given the flight path and the rate of climb chosen, a collision with the terrain was unavoidable.
3. The characteristics of the terrain were deceptive, making it difficult for the pilots to perceive their proximity and rate of closure to the rising ground in sufficient time to avoid it.
Other Findings:
1. Performance calculations show that the Electra—in the absence of limiting mechanical malfunction—could have climbed at a rate that would have allowed the aircraft to avoid the terrain.
2. Although a functional cockpit voice recorder was installed in the aircraft, it was not required by regulation and it was not used; as a result, vital clues that could have shed light on the circumstances of this accident were not available.
3. The emergency locator transmitter could not transmit a signal as a result of severe impact forces that exceeded the design criteria.
Final Report:

Crash of a Piper PA-46-350P Malibu Mirage on Mt Lakit: 1 killed

Date & Time: Oct 17, 1999 at 2025 LT
Registration:
N90D
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Lynn Lake – Cranbrook – Spokane
MSN:
46-22086
YOM:
1989
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
On October 17, 1999, about 20:25 Mountain Daylight Time, a Piper PA-46-350P, N90D, was substantially damaged while descending to the Cranbrook Airport (CYXC), Cranbrook, British Columbia. The certificated airline transport pilot was fatally injured. Night visual meteorological conditions prevailed, and an instrument flight rules (IFR) flight plan was filed for the flight that originated near Lynn Lake (CYYL), Manitoba. The ferry flight was conducted under Canadian flight rules. According to a Transportation Safety Board of Canada Investigator, the airplane was being ferried from England to Spokane, Washington. At the last departure point, CYYL, the airplane was refueled and the pilot filed an IFR flight plan. During the flight, the pilot was in contact with Vancouver Area Control Center. While approaching CYXC, the pilot contacted Cranbrook Flight Service Station (FSS) and was provided the latest airport information. The pilot did not report any difficulties with the airplane or flight at that time. The pilot's last transmission with the FSS was about 10 miles from the airport. After attempting to contact the airplane, FSS contacted the Rescue Coordination Center, and notified them that the airplane was overdue. An emergency locator transmitter signal was received about 21:55, but the airplane was not found until the following morning. The airplane was located on the eastern side of Lakit Mountain at the 6,500-foot level, 9 miles northeast of CYXC. The weather reported by CYXC, at 20:00 was, wind from 300 degrees at 4 knots, scattered clouds at 10,000 feet, and a broken cloud layer at 24,000 feet. The pilot (sole person on board) was killed.
Probable cause:
Controlled flight into terrain.

Crash of a Boeing 737-275 in Cranbrook: 42 killed

Date & Time: Feb 11, 1978 at 1255 LT
Type of aircraft:
Operator:
Registration:
C-FPWC
Survivors:
Yes
Schedule:
Fort McMurray – Edmonton – Calgary – Cranbrook – Castlegar
MSN:
20142/253
YOM:
1970
Flight number:
PW314
Country:
Crew on board:
5
Crew fatalities:
Pax on board:
44
Pax fatalities:
Other fatalities:
Total fatalities:
42
Captain / Total flying hours:
5173
Captain / Total hours on type:
2780.00
Copilot / Total flying hours:
1316
Copilot / Total hours on type:
81
Circumstances:
Pacific Western Airlines flight 314 was a scheduled Boeing 737 service from Fort McMurray, Aberta, to Castlegar with stops at Edmonton, Calgary and Cranbrook, B. C. The flight departed Calgary at 1932Z 11 February 1978, for Cranbrook with a Company estimated time enroute of 23 minutes. This estimate was passed to the Company Agent in Cranbrook. Flight 314 was cleared by Calgary Air Traffic Control to Cranbrook via high level airway 505, and reached the assigned altitude of 20,000 feet at 1938Z. Air Traffic Control in Calgary transmitted an ETA (estimated time of arrival) of 2005Z to Cranbrook Aeradio, via the land line. Cranbrook is an "uncontrolled" airport without a control tower, but within controlled airspace, with an "Aeradio" station providing communications, weather, and advisory service. At Cranbrook it was snowing with the visibility reported as 314 of a mile, and a radio equipped snow removal vehicle was sweeping the runway. The Aeradio operator at Cranbrook alerted the vehicle operator about the incoming aircraft at 1935Z and gave him the ETA of 2005Z; they both expected the flight would report by the "Skookum Beacon" on a straight-in approach to runway 16, thus giving the vehicle operator about seven minutes to get off the runway. At 1942Z Flight 314 called Calgary and requested and received descent clearance; it was also given clearance for the approach to Cranbrook. At 1944Z, the flight called out of 18000 feet in the descent, and Calgary ATC advised the flight to contact Aeradio. At 1945Z, Flight 314 made initial contact with Cranbrook Aeradio and at 1946Z Cranbrook passed the latest weather, altimeter and runway information. At 1947Z Cranbrook Aeradio advised the flight that snow removal was in progress and gave the latest visibility; Flight 314 acknowledged. No further transmissions were received from the flight by Aeradio or ATC. Evidence indicates the aircraft passed the Skookum beacon inbound on a straight-in instrument approach, and flew the ILS for runway 16 to touchdown.' According to witnesses and estimates partially derived from flight data recorder information, the aircraft touched down at 1955Z approximately 800 feet from the threshold and reverse thrust was selected. Reverse thrust was cancelled immediately after touchdown and a go-around was initiated. The aircraft became airborne prior to the 2000 foot mark, and flew down the runway at a height of 50 to 70 feet, flying over a snow removal vehicle which was still on the runway, 2050 feet from the threshold and 20 feet from the right edge. About this time the left engine thrust reverser doors deployed. A few seconds later, the flap was selected up from 40° to 15°. The landing gear remained down and locked. Six seconds before impact and just over 4,000 feet from the runway threshold, the flight recorder data indicates that a large amount of left rudder was momentarily applied. The aircraft climbed to 300 to 400 feet above the airfield, banked steeply to the left, lost height and side-slipped into the ground to the left of the runway. Fire broke out on impact. Four crew members and 38 passengers were killed while seven other occupants were killed.
Probable cause:
The following findings were reported:
- The estimated time of arrival of the aircraft at Cranbrook, calculated by Calgary ATC, and used by Aeradio for advisory purposes was considerably in error and resulted in a traffic conflict between the arriving aircraft and a vehicle working on the runway,
- The flight crew did not report by the Skookum beacon on final approach, as was the normal practice at Cranbrook, thereby allowing the incorrect ETA to remain undetected,
- Regulatory provisions concerning mandatory pilot position reporting during instrument approaches were inadequate,
- The interfaces between the organizations providing Air Traffic Services, Telecommunications (Aeradio) and Airports Services were not well enough developed to provide a reliable fail-safe flight information service,
- The pilots lost control of the aircraft consequent upon the left engine thrust reverser deploying in flight when the aircraft was at low speed, and in a high drag configuration,
- The FAA design standards under which the Boeing 737 was constructed did not adequately provide for the possibility of an aborted landing after touchdown and thrust reverser initiation,
- The lack of a suitable national system of incident reporting, investigation, and follow-up corrective action allowed operational problems to remain uncorrected,
- Rescue efforts at the accident scene were hampered due to lack of a fire fighting vehicle capable of negotiating deep snow and shortage of trained rescue personnel.
Final Report: