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ASN Wikibase Occurrence # 172441
Last updated: 22 August 2021
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Type:Silhouette image of generic R44 model; specific model in this crash may look slightly different
Robinson R44 Raven II
Owner/operator:Heli Sitterdorf AG / Heli-Züri AG
Registration: HB-ZMQ
MSN: 13181
Fatalities:Fatalities: 0 / Occupants: 4
Other fatalities:0
Aircraft damage: Substantial
Location:Zurich Airport LSZH -   Switzerland
Phase: Take off
Departure airport:LSZH
Destination airport:
While waiting for departure clearance, the occupants briefly opened the doors of the aircraft to avoid fogging of the wind screens.
After obtaining permission to depart, the helicopter began to hover. Then the door on the pilot's side opened.
The helicopter became unstable when the pilot took his hand off the cyclic control to close the door. The collective lever was not completely reduced.
The main rotor struck then the ground and the helicopter tipped over sideways.


Accident investigation:
Investigating agency: 
Status: Investigation completed
Download report: Final report

Revision history:

22-Dec-2014 18:22 lspm Added
22-Dec-2014 18:25 harro Updated [Aircraft type, Registration, Cn]
22-Dec-2014 23:57 Aerossurance Updated [Operator, Source, Narrative]
25-Dec-2014 18:08 Anon. Updated [Operator, Source, Narrative]
25-Dec-2014 18:36 Anon. Updated [Nature]
29-Jan-2015 19:27 harro Updated [Registration, Other fatalities, Nature, Source, Narrative]

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