NTSB Identification: FTW92FA073.
The docket is stored on NTSB microfiche number 46379.
Accident occurred Saturday, February 22, 1992 in CLARKSVILLE, AR
Probable Cause Approval Date: 08/13/1993
Aircraft: CESSNA 150, registration: N7896E
Injuries: 2 Serious.

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.

DURING AN AERIAL PHOTOGRAPHY FLIGHT THE PILOT DID NOT MAINTAIN THE FLYING AIRSPEED WHILE MANEUVERING. THE PILOT STATED THAT HE DID NOT HEAR THE STALL WARNING INDICATOR AND BELIEVED THAT IT WAS NOT WORKING OR NOT INSTALLED. AS THE LEFT WING DROPPED AND THE NOSE FELL, THE PILOT AND PASSENGER GOT THE FLAPS UP AND AS THE AIRPLANE GOT ENOUGH SPEED THE PILOT STATED THAT HE PULLED THE YOKE FULL BACK AND THE AIRPLANE WAS STARTING TO CLIMB WHEN THE NOSE IMPACTED THE TREE. THE AIRPLANE DESCENDED UNCONTROLLED TO THE GROUND. THE OPERATOR DID NOT CONDUCT A CHECKFLIGHT OF THE PILOT. BOARD INVESTIGATION REVEALED THE STALL WARNING SYSTEM WAS INSTALLED AND CAPABLE OF FUNCTIONING. AN ENGINE TEST RUN DID NOT REVEAL ANY ANOMALIES.

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

THE PILOTS INADVERTENT STALL. A FACTOR WAS THE OPERATOR'S INADEQUATE SUPERVISION.

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