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Accident description
Last updated: 23 October 2017
Status:Final
Date:Wednesday 28 April 1976
Type:Silhouette image of generic DHC4 model; specific model in this crash may look slightly different
de Havilland Canada DHC-4 Caribou
Operator:Uganda Police Airwing
Registration: 5X-AAB
C/n / msn: 222
First flight: 1965
Total airframe hrs:1953
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 2
Airplane damage: Damaged beyond repair
Location:Entebbe Airport (EBB) (   Uganda)
Phase: Landing (LDG)
Nature:Training
Departure airport:Entebbe Airport (EBB/HUEN), Uganda
Destination airport:Entebbe Airport (EBB/HUEN), Uganda
Narrative:
During a training flight, a no. 2 engine failure was simulated. The student pilot feather the propeller and continued the approach for a full stop landing. On finals the gear was raised and engine power increased. The aircraft rolled to the right and impacted the runway with its right wingtip and right hand main gear leg. The Caribou skidded off the runway for some 220 m, crashed across a drainage ditch and through a barbed wire fence.

Probable Cause:

PROBABLE CAUSE: "Strong asymmetric thrust caused by increasing engine power on the operative engine when the aircraft was about to touch down with one engine feathered. Contributing factors were: 1) the lack of understanding between the two flight crew members of what each other was doing immediately prior to the accident; 2) the student/instructor relationship between the two and the prevailing dark night-time conditions."

Classification:
Runway excursion

Sources:
» ICAO Circular 146-AN/96 (105-115)


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