Report conserning the serious aircraft incident on 18 May 2014 northeast of Bjørkelangen with Apex Aircraft CAP 10C, LN-KAP

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Description

During practicing of aerobatic manoeuvres northeast of Bjørkelangen, Akershus, the propeller came loose and disappeared. An emergency landing in an agricultural area was performed without any further damage. The investigation showed that three of the six propeller bolts were broken. The other three bolts were missing and had most likely unscrewed themselves. This indicates that the torque on the bolts was too low.

Location
Northeast of Bjørkelangen, Akershus, Norway
Occurrence date
18.05.2014
Aircraft
Other light aeroplane
Operator
Nedre Romerike Flyklubb
Registration
LN-KAP
Meteorological conditions
VMC
County
Akershus
Type of occurrence
Serious incident
Type of operation
Private (club)
Category of operation
Light, aeroplane (< 5 700kg)
Aircraft category
Landplane, Single-engine, Piston engine
FIR/AOR
ENOS (Oslo ATCC)
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Reports same aircraft model
Reports same category of operation