NTSB Identification: FTW83LA115.
The docket is stored on NTSB microfiche number 21815.
Accident occurred Sunday, February 13, 1983 in ADDISON, TX
Aircraft: BELL 206B, registration: N900JJ
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE HELICOPTER WAS IN FLYABLE STORAGE & WAS ON A WEEKLY FLIGHT TO OPERATE THE VARIOUS SYSTEMS. AFTER LANDING ON SOFT TERRAIN, THE PLT STARTED TO TAKEOFF. AS THE HELICOPTER LIFTED OFF, IT ROLLED OVER & THE MAIN ROTOR BLADES STRUCK THE SURFACE. SUBSEQUENTLY, THE MAIN ROTOR SYSTEM & TRANSMISSION SEPARATED FROM THE ACFT. AN EXAM REVEALED NO PREIMPACT FAILURES. THE TERRAIN CONSISTED OF MOWED SOD WITH BLACK SOIL UNDERNEATH. THE SUFFACE WAS SOFT. TWO DEEP RUTS WERE FOUND AT THE SITE WITH ADDITIONAL RUTS (FROM THE SKIDS) NEARBY.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRCRAFT HANDLING..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..SOFT


Contributing Factors

VERTICAL TAKEOFF..INITIATED..PILOT IN COMMAND

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