NTSB Identification: NYC88LA059.
The docket is stored on NTSB microfiche number 37207.
Accident occurred Tuesday, December 22, 1987 in SANDWICH, MA
Probable Cause Approval Date: 06/26/1989
Aircraft: CESSNA 170A, registration: N5571C
Injuries: 1 Fatal.

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 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.

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

AIRSPEED(VS)..NOT MAINTAINED..PILOT IN COMMAND

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

STALL..INADVERTENT..PILOT IN COMMAND


Contributing Factors

LOW PASS..PERFORMED..PILOT IN COMMAND



Contributing Factors

IMPAIRMENT(DRUGS)..PILOT IN COMMAND


Contributing Factors

DIVERTED ATTENTION..PILOT IN COMMAND

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