NTSB Identification: FTW95FA106.
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Accident occurred Saturday, February 04, 1995 in ARNAUDVILLE, LA
Probable Cause Approval Date: 06/13/1996
Aircraft: CESSNA 150, registration: N6464T
Injuries: 1 Fatal,1 Minor.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
THE PASSENGER REPORTED THAT, WHILE CIRCLING NEAR A FRIEND'S HOUSE, HE HEARD A 'BEEPING' SOUND, AND THE AIRPLANE STARTED 'DROPPING QUICK.' A WITNESS STATED, 'I HEARD THE ENGINE REV, IT LOOKED AS THOUGH THE PLANE WAS TRYING TO PULL UP, BUT IT CRASHED INTO THE TREE AND GLIDED INTO THE WATER AND SANK VERY QUICKLY.' AN EXAMINATION OF THE AIRPLANE AND ENGINE DID NOT REVEAL ANY PREIMPACT MECHANICAL ANOMALIES. TOXICOLOGY TESTS OF THE PILOT SHOWED THAT HIS BLOOD CONTAINED 0.289 MCG/ML OF DIAZEPAM (VALIUM) AND 0.364 MCG/ML OF NORDIAZEPAM (METABOLITE OF DIAZEPAM). VALIUM IS AN ANTIANXIETY AGENT AND MUSCLE RELAXANT, NOT APPROVED FOR USE WHILE FLYING. THE DRUG CONCENTRATION WAS IN THE THERAPEUTIC RANGE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE PILOT'S FAILURE TO MAINTAIN ADEQUATE AIRSPEED WHILE CIRCLING AT LOW ALTITUDE, WHICH RESULTED IN AN INADVERTENT STALL AND SUBSEQUENT COLLISION WITH TERRAIN (WOODED RIVER BANK). A FACTOR RELATING TO THE ACCIDENT WAS: THE PILOT'S USE OF A DRUG THAT WAS NOT APPROVED FOR USE WHILE FLYING. Full narrative available
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