SANDWICH, MA, USA
N5571C
CESSNA 170A
THE CESSNA 170A WAS ON AN AERIAL PHOTOGRAPHY FLT. WITNESSES RPRTD THE ACFT WAS FLYING SLOW AT ABOUT 200 FT AGL WHEN IT BEGAN TO SETTLE. THE WITNESSES THEN HEARD AN INCREASE IN ENG POWER & SAW THE ACFT PITCH UP. SUBSEQUENTLY, IT 'FELL OFF ON A WING,' CRASHED IN A STEEP DSCNT & BURNED. DUE TO IMPACT & FIRE DAMAGE, INVESTIGATORS COULD NOT DETERMINE IF THE PLT WAS WEARING A SEAT BELT. NO PREIMPACT PART FAILURE OR MALFUNCTION WAS FOUND. THE 72 YEAR OLD PLT'S LAST MEDICAL CERTIFICATE WAS DATED 6/13/85 & HIS LAST BIENNIAL FLT REVIEW WAS ABOUT 34 MONTHS PRIOR TO THE ACDNT. A TOXICOLOGY CHECK REVEALED THE PRESENCE OF DESMETHYLDIAZEPAM, AN ACTIVE METABOLITE OF DIAZEPAM (VALIUM), IN THE AMOUNT OF 0.1 UG/ML. ACCORDING TO THE TOXICOLOGY RPRT, 0.1 TO 2.1 UG/ML OF DIAZEPAM IS A THERAPEUTIC LVL.
Source: NTSB Aviation Accident Database
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