NTSB Identification: SEA00LA068.
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Accident occurred Saturday, April 08, 2000 in LIBBY, MT
Probable Cause Approval Date: 05/09/2001
Aircraft: PZL-Bielsko SZD-45A OGAR, registration: N54AS
Injuries: 1 Uninjured.

NTSB investigators may have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The aircraft was in a powered cruise configuration at 7,500 feet mean sea level when one of the propeller blades separated from the propeller hub. The pilot initiated a descent and subsequent forced landing without further incident or damage to the aircraft. An FAA Inspector examined the aircraft after the accident and reported that the propeller blade separated near the propeller hub. The inspector also stated that there appeared to be a preexisting crack in the area of the separation.

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

A crack in the propeller blade that developed into a complete separation of the blade.

Full narrative available

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