Accident description
Last updated: 2 October 2014
Status:Final
Date:Wednesday 3 June 2009
Time:19:05
Type:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Operator:Skydive Airlines
Registration: SE-GEE
C/n / msn: 364
First flight: 1973
Total airframe hrs:28104
Cycles:56080
Engines: 2 Pratt & Whitney Canada PT6A-27
Crew:Fatalities: 0 / Occupants: 1
Passengers:Fatalities: 0 / Occupants: 21
Total:Fatalities: 0 / Occupants: 22
Airplane damage: Substantial
Airplane fate: Repaired
Location:Gryttjom airfield, Uppsala county (   Sweden) show on map
Phase: Taxi (TXI)
Nature:Parachuting
Departure airport:Gryttjom (ESKG), Sweden
Destination airport:Gryttjom (ESKG), Sweden
Narrative:
At the time of the accident, sport parachute jumping was taking place at Gryttjom airfield, Sweden. The pilot, who was involved in these operations, intended to take off with 21 parachutists on board the aircraft for them to carry out a normal jump near to the airfield.
After the pilot had carried out the normal pre-flight checks the parachutists boarded the aircraft and the pilot began to taxi the aircraft towards the beginning of the runway for a take-off from runway 36. He did not notice anything abnormal, neither during the preparations for take-off nor during the initial taxiing.
After taxiing for a few minutes at low speed, suddenly the right main landing gear broke, whereupon the aircraft tipped over to the right and the right wing struck the ground. The aircraft then slowed down, turned somewhat to the right, and stopped.
The pilot ordered an emergency evacuation and those on boards unclipped themselves and quickly exited the aircraft via the normal parachuting door. At about the same time the pilot switched off the engines, turned off the main fuel cocks and main circuit breaker, and exited the aircraft himself.
Once outside the aircraft the pilot checked that everyone else had exited the aircraft and moved to a safe location.


CAUSES OF THE ACCIDENT: "The accident was caused by fatigue cracking in the right main landing gear. A contributory factor was an inadequate maintenance system for this type of aircraft in respect of checking for cracks."

Sources:

Official accident investigation report
investigating agency: Statens haverikommission (SHK) - Sweden
report status: Final
report number: Report RL 2010:09e
report released:07-JUN-2010
duration of investigation:369 days (1 year )
download report: Accident to aircraft SE-GEE at Gryttjom airfield, Uppsala county, Sweden on 3 June 2009 (SHK Report RL 2010:09e)
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