Narrative:
Took off from runway 19L, climbed steeply with 60deg. pitch to 200-500 feet. The Twin Otter then stalled and crashed 300 feet left of the runway.
PROBABLE CAUSE: "The pilot inadvertently misused the flaps, by failing to set the flaps to the proper setting. The flaps were set full down. This caused the aircraft to pitch up steeply after liftoff. Additionally, the flight control lock was probably installed during some portion, if not the entire flight, which prevented flight control operation. The pilot subsequently failed to maintain adequate flying speed and the aircraft stalled. contributing factors are the pilot's inattention and his failure to adequately use the checklist".
Loss of control
» NTSB
accident date: 20-07-1988
type: de Havilland Canada DHC-6 Twin Otter 200
registration: N7267
| Status: | Accident investigation report completed and information captured |
| Date: | Wednesday 20 July 1988 |
| Time: | 16:08 |
| Type: |  de Havilland Canada DHC-6 Twin Otter 200 |
| Operator: | Fairways Corp. |
| Registration: | N7267 |
| MSN: | 195 |
| First flight: | 1969 |
| Total airframe hrs: | 10513 |
| Engines: | 2 Pratt & Whitney Canada PT6A-20A |
| Crew: | Fatalities: 1 / Occupants: 1 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | Washington-Dulles International Airport, DC (IAD) ( United States of America)
|
| Crash site elevation: | 95 m (312 feet) amsl |
| Phase: | Takeoff (TOF) |
| Nature: | Ferry/positioning |
| Departure airport: | Washington-Dulles International Airport, DC (IAD/KIAD), United States of America |
| Washington-National Airport, DC (DCA/KDCA), United States of America |
Took off from runway 19L, climbed steeply with 60deg. pitch to 200-500 feet. The Twin Otter then stalled and crashed 300 feet left of the runway.
Probable Cause:
PROBABLE CAUSE: "The pilot inadvertently misused the flaps, by failing to set the flaps to the proper setting. The flaps were set full down. This caused the aircraft to pitch up steeply after liftoff. Additionally, the flight control lock was probably installed during some portion, if not the entire flight, which prevented flight control operation. The pilot subsequently failed to maintain adequate flying speed and the aircraft stalled. contributing factors are the pilot's inattention and his failure to adequately use the checklist".
Accident investigation:
 |
|
Classification:
Wrong takeoff configuration (flaps/trim) Loss of control
Sources:
» ICAO Adrep Summary 4/90 (#15)» NTSB
Photos
accident date: 20-07-1988
type: de Havilland Canada DHC-6 Twin Otter 200
registration: N7267
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Washington-Dulles International Airport, DC to Washington-National Airport, DC as the crow flies is 37 km (23 miles).
Distance from Washington-Dulles International Airport, DC to Washington-National Airport, DC as the crow flies is 37 km (23 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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