NTSB Identification: CHI90DEP02.
The docket is stored on NTSB microfiche number 40814.
Accident occurred Friday, December 01, 1989 in HOLMEN, WI
Probable Cause Approval Date: 09/30/1991
Aircraft: ROTEC PANTHER 2+, registration: NONE
Injuries: 1 Serious.

DURING TAKEOFF THE EMERGENCY BALLISTIC RECOVERY PARACHUTE PARTIALLY DEPLOYED AND THE BRIDAL CABLE BECAME ENTANGLED IN THE PROPELLER AND AIRPLANE RIGGING. THE CABLE WAS FOUND WRAPPED AROUND THE PROPELLER SHAFT SEVERAL TIMES, CAUSING THE ENGINE TO RUN TIGHT & STOP. INVESTIGATION REVEALED CANNISTER HALF SEPARATION AND DEPLOYMENT OF THE BRIDAL CABLE HARNESS & SHROUD LINES. THE PARACHUTE CANOPY REMAINED STOWED IN THE HALF CANNISTER. THE PULL-TYPE CONTROL CABLE THAT FIRES THE EXPLOSIVE CHARGE WAS IN THE NORMAL STOWED POSITION.

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

INADVERTENT PARTIAL DEPLOYMENT OF THE EMERGENCY BALLISTIC RECOVERY PARACHUTE RESULTING IN A LOSS OF ENGINE THRUST AND AERODYNAMIC CONTROL OF THE AIRCRAFT.

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