NTSB Identification: FTW88FA104.
The docket is stored on NTSB microfiche number 37671.
Accident occurred Wednesday, May 18, 1988 in LE FLORE, OK
Probable Cause Approval Date: 07/19/1989
Aircraft: CESSNA 172P, registration: N212FR
Injuries: 2 Fatal.

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 ACFT WAS BEING USED TO FLY OVER A WOODED AREA & SPOT CATTLE FOR PSNL ON THE GROUND. AFTER SPOTTING CATTLE FOR ABOUT 2 HRS, THE PLT WAS FLYING AT LOW ALT WHEN THE ACFT SUDDENLY ROLLED INTO A STEEP BANK, THEN THE NOSE DROPPED & THE ACFT CRASHED IN A STEEP DSCNT. A WITNESS RPRTD THE ENG REVVED UP JUST BEFORE IMPACT. SEVERAL TREE BRANCHES WERE FOUND AT THE CRASH SITE THAT HAD BEEN SMOOTHLY SEVERED BY THE PROP. NO PREIMPACT PART FAILURE OR MALFUNCTION WAS FOUND. DRG TOXICOLOGY STUDIES OF THE OCCUPANTS, LOW LVLS OF COCAINE & MARIJUANA WERE DETECTED. TESTS OF THE PLT'S URINE SHOWED A MARIJUANA METABOLITE LEVEL OF 79 NG/ML & A COCAINE LVL OF 0.13 MCG/ML. HIS BLOOD HAD A CARBOXY-THC LVL OF 12 NG/ML. TESTS OF THE PAX'S URINE SHOWED A MARIJUANA METABOLITE LEVEL OF 56 NG/ML & A COCAINE LEVEL OF 0.2 MCG/ML.

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

AIRSPEED..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

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

DIVERTED ATTENTION..PILOT IN COMMAND

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

IMPAIRMENT(DRUGS)..PILOT IN COMMAND

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