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ASN Wikibase Occurrence # 165618
Last updated: 25 November 2021
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Time:15:40 EEST
Type:Silhouette image of generic CA8 model; specific model in this crash may look slightly different
Aerocomp Comp Air 8 Turbine
Owner/operator:Suomen Urheiluilmailijat ry
Registration: OH-XDZ
MSN: 1
Fatalities:Fatalities: 8 / Occupants: 11
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:2 km from Jämijärvi airfield EFJM, Satakunta -   Finland
Phase: En route
Departure airport:EFJM
Destination airport:EFJM
The experimental aircraft was climbing to 4 km altitude with a pilot and 10 skydivers on board when it reportedly experienced technical difficulties, entered a spin, crashing in a wooded area, catching fire. The pilot and two skydivers were able to escape using their parachutes from pilot door. The plane was found at 15:40 LT some 2 km from Jämijärvi airfield. The local police confirm 8 persons died in the crash. The victims were found inside the wreck and in the vicinity.

The cause of the accident was that the stress resistance of the right wing’s wing strut was exceeded as a result of the force which was generated by a negative g-force. The force which resulted in the buckling of the wing strut was the direct result of a negative (nose-down) change in pitching moment, in conjunction with an engine power reduction intended to decrease the high airspeed.


Accident investigation:
Investigating agency: 
Status: Investigation completed
Duration: 12 months
Download report: Final report

Revision history:

20-Apr-2014 16:09 bubu Added
20-Apr-2014 16:34 TB Updated [Aircraft type, Registration, Cn, Other fatalities]
20-Apr-2014 17:14 Dmitriy Updated [Aircraft type]
20-Apr-2014 17:20 TB Updated [Registration, Cn, Other fatalities]
20-Apr-2014 17:27 Propjock Updated [Total fatalities, Phase, Source, Narrative]
20-Apr-2014 17:31 slowkid Updated [Time, Operator, Total fatalities, Source, Narrative]
20-Apr-2014 18:14 slowkid Updated [Total fatalities, Location, Source, Narrative]
20-Apr-2014 20:26 Vlinder Updated [Aircraft type, Operator]
20-Apr-2014 20:31 jli Updated [Source, Narrative]
21-Apr-2014 09:13 Anon. Updated [Time, Operator, Location]
21-Apr-2014 12:23 Penu Updated [Time]
21-Apr-2014 17:19 Penu Updated [Source, Narrative]
24-Sep-2014 08:25 Anon. Updated [Source]
07-Oct-2014 18:30 harro Updated [Source, Narrative]
22-Apr-2015 12:31 Penu Updated [Time, Source, Narrative]
31-Oct-2018 10:50 harro Updated [Source, Accident report, ]

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