NTSB Identification: LAX84FU023.
The docket is stored on NTSB microfiche number 23044.
Accident occurred Saturday, December 03, 1983 in BULLHEAD CITY, AZ
Aircraft: MOTORIZED GLIDERS TIERRA, registration: NONE
Injuries: 1 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.

ACCORDING TO THE PLT, HE HAD NO PREVIOUS FLT TIME IN ULTRALIGHT ACFT. BEFORE TAKING OFF, HE TAXIED THE ULTRALIGHT SEVERAL TIMES TO GET THE FEEL OF THE VEHICLE. DURING DEPARTURE, THE PLT TOOK OFF FROM A TAXI STRIP WEST OF RWY 17. THE STRIP WAS USED BY ULTRALIGHT PLTS FOR ALL TAKEOFFS & LANDINGS. THE PLT STATED THAT SHORTLY AFTER DEPARTING & WHILE NEGOTIATING A LEFT TURN, THE LEFT WING STALLED & THERE WAS INSUFFICIENT ALTITUDE TO RECOVER. ACCORDING TO THE OPERATOR, THE LEFT TURN WAS STARTED AT ABOUT 50 FT AGL, THEN THE ULTRALIGHT STALLED. HE FURTHER STATED THAT THE ENG SOUNDED NORMAL THRU-OUT THE SEQUENCE & THAT THE VEHICLE WAS CLIMBING AT A VERY SLOW SPEED BEFORE THE ACCIDENT. AN EXAM OF THE AIRFRAME & ENG DISCLOSED NO PREIMPACT, MECHANICAL MALFUNCTION OR FAILURE.

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:

LACK OF FAMILIARITY WITH AIRCRAFT..PILOT IN COMMAND

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