Bombardier Dash 8 and Dash 7 plane crashes

The following are significant events involving the aircraft model. The numbered events are those involving at least one passenger death where the aircraft flight had a direct or indirect role, and where at least one of the dead passengers was not a stowaway, hijacker, or saboteur.

Dash 8 crashes

19 June 1987; Horizon Air Dash 8; N813PH ; Seattle, WA: The aircraft was on a scheduled domestic flight from Seattle, WA to Portland, OR. The right engine exploded lost power during initial climb at about 800 feet above the ground. The crew shut down the engine, extinguished the fire, and landed. The explosion and fire was caused by a leaking fuel line associated with the high pressure fuel control unit None of the four crew members or 37 passengers were killed.
NTSB accident brief
Other Horizon events

15 April 1988; Horizon Air Dash 8; N819PH; flight 2658; Seattle, WA: The aircraft was on a scheduled domestic flight from Seattle, WA to Spokane, WA. The crew executed an air turn back after the right engine lost power during climbout. The crew noticed a right engine fire after lowering the landing gear. Fire damage to the hydraulic system led to a loss of control of the aircraft after landing. The aircraft departed the runway and struck ground equipment and two jetways. The aircraft was subsequently destroyed by fire. None of the three crew members and 37 passengers were killed, but four passengers were seriously injured.

The NTSB concluded that the fuel leak that led to the subsequent fire in the right engine nacelle was due to improper installation of the high pressure fuel filter cover, a problem that occurred during an engine overhaul and that was not discovered by the airline when the engine was installed.
NTSB accident brief
Other Horizon Air Events

21 November 1990; Bangkok Airways Dash 8; near Koh Samui, Thailand: The aircraft was on a scheduled domestic flight from Bangkok, Thailand to Koh Samui. While executing a missed approach procedure at the destination airport, the aircraft entered an area of heavy rain, causing the flight crew to become disoriented. The aircraft then had a controlled flight into terrain, crashing into a coconut plantation. All five crew members and 33 passengers were killed.
More about Bangkok Airways
6 January 1993; Lufthansa Cityline Dash 8; Paris, France: The aircraft was on a scheduled international flight from Bremen, Germany to Paris, France. The flight was ordered to change runways due to a tire failure of a preceding Korean Air 747. The crew lost control and struck the ground while maneuvering to the alternate runway. All four crew members survived, but four of the 19 passengers were killed.
Other Lufthansa Events
9 June 1995; Ansett New Zealand Dash 8; near Palmerston, New Zealand: The aircraft struck high ground during a daylight approach in poor weather. One of the three crew members and four of the 18 passengers were killed.
12 February 2009; Continental Connection (Colgan Air) Dash 8-Q400; Flight 3407; near Buffalo, NY: The aircraft, a scheduled flight from Newark, NJ and operated by Colgan Air, crashed in a residential area about seven miles from the airport. At least one house on the ground was destroyed. All 45 passengers and four crew members were killed, along with one person on the ground.
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AirSafe.com's Initial report on this accident

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AirSafe.com YouTube channel
12 March 2018; US-Bangla Airlines Dash 8-402Q; S2-AGU; flight 211; Kathmandu, Nepal: The aircraft was on a scheduled international flight from Dhaka, Bangladesh to Kathmandu, Nepal. The aircraft was cleared to land on runway 20 but for reasons that are unclear the aircraft attempted a landing on the opposite runway 02. The aircraft collided with the ground and caught fire. All four crew members and 47 of the 67 passengers were killed.
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10 August 2018; Horizon Air Dash 8-402Q; N449QX; near Seattle, WA The aircraft was taken on an unauthorized flight by Richard Russell, a ground service operator with the airline who not certified as a pilot, and did not have authorization to be in the aircraft. After departing from Seatac Airport, Russell flew the aircraft for about 75 minutes in an area south of Seattle, performing number of extreme maneuvers, before crashing on an island in Puget Sound about 40 kilometers south of the departure airport. Russell, the sole occupant of the aircraft, was killed.
Crashes caused by airline insiders
Horizon Air plane crashes
Dash 8 plane crashes
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8 May 2019; Myanmar National Airlines Dash 8-402; S2-AGQ; flight BG60; Yangon, Myanmar The aircraft was on a scheduled international flight from Dhaka, Bangladesh to Yangon, Myanmar. After touching down, the aircraft veered left off the runway and came to a stop on soft ground with all gear collapsed and the fuselage broken into three sections. The 29 passengers and four crew members received injuries with 19 of them hospitalized.

Dash 7 crashes

9 May1982; Alyemda Dash 7; near Aden, Yemen: The aircraft lost altitude and crashed into the sea about 2 km short of the runway. Two of the four crew members and 21 of the 44 passengers were killed.
6 May1988; Wideroe Dash 7; near Bronnoysund, Norway: The aircraft was on a scheduled domestic flight from Namsos to Bronnoysund, Norway. The crew started the aircraft's descent to the landing runway about four nautical miles early, and crashed into high ground while in poor visibility conditions. All three crew members and 33 passengers were killed.

Bombardier Dash 8 and Dash 7 plane crashes
http://www.airsafe.com/events/models/bombardier.htm -- Revised: 13 May 2019