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ASN Wikibase Occurrence # 165618
Last updated: 19 August 2018
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:20-APR-2014
Time:15:40 EEST
Type:Aerocomp Comp Air 8 Turbine
Owner/operator:Suomen Urheiluilmailijat ry
Registration: OH-XDZ
C/n / 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
Nature:Parachuting
Departure airport:EFJM
Destination airport:EFJM
Narrative:
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.

Sources:

http://www.iltalehti.fi/uutiset/201404200163249_uu.shtml
http://www.hs.fi/kotimaa/Poliisi+J%C3%A4mij%C3%A4rven+turmakoneesta+l%C3%B6ytynyt+seitsem%C3%A4n+kuollutta+/a1397960543027
http://yle.fi/uutiset/poliisi_vahvistaa_kahdeksan_kuollutta_jamijarvella/7198916
https://www.mtv.fi/uutiset/kotimaa/artikkeli/vain-mtv-lla--kuvasarja-jamijarven-turmakoneen-syoksysta/3173422
http://www.iltalehti.fi/uutiset/2014042118230055_uu.shtml
http://www.turvallisuustutkinta.fi/fi/index/ajankohtaista/tiedotteet/2014/09/jamijarvenonnettomuuskoneensiipitukiolimurtunut.html
http://www.turvallisuustutkinta.fi/material/attachments/otkes/tutkintaselostukset/fi/ilmailuonnettomuuksientutkinta/2014/5etkMcJmr/L2014-02_tutkintaselostus.pdf


Revision history:

Date/timeContributorUpdates
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]

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