Date: August 10, 2005
Time: 1243
Location: Off Talinn, Estonia
Operator: Copterline
Flight #: ?
Route: Talinn, Estonia - Helsinki, Finland
AC Type: Sikorsky S-76C
Registration: OH-HCI
cn / ln: 760508
Aboard: 14   (passengers:12  crew:2)
Fatalities: 14   (passengers:12  crew:2)
Ground: 0
Summary: The helicopter crashed at sea about 3 miles off the coast near the island of Naissaar, after disappeared from Tallinn ATC radar 3 minutes after take-off from Tallinn in gusty wind conditions. Failure of the power steering system, caused by coating flaking off from servo pistons. The loosened plasma coating flakes blocked the return valves of the servos, causing the aircraft to abruptly lose its maneuverability

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