NTSB Identification: FTW82FPM15
14 CFR Part 91: General Aviation
Accident occurred Thursday, August 12, 1982 in TULSA, OK
Probable Cause Approval Date: 08/12/1983
Aircraft: BEECH H35, registration: N4800Y
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.

AIRCRAFT LOST POWER DURING TAKEOFF. PILOT TRIED TO TURN BACK TO AIRPORT IN A LEFT BANK DESCRIBED AS 60 TO 90 DEGREES. AIRCRAFT STALLED AND CRASHED ABOUT 1300 FEET EAST OF TAKEOFF POINT. DURING THE INVESTIGATION THE FUEL PUMP WAS PLACED ON A FLOW BENCH & ON THE INITIAL TEST WOULD NOT PUMP FUEL. THE VAPOR SEPARATOR TOWER COVERPLATE WAS REMOVED & A FOREIGN OBJECT WAS OBSERVED IN THE ORIFICE OF THE VAPOR EJECTOR. THERE WERE PARTICLES OF A BLACK SUBSTANCE FLOATING IN THE SEPARATOR TOWER. WHEN THE FUEL WAS POURED ONTO A WHITE TOWEL THE PARTICLES DISCOLORED THE TOWEL AS GRAPHITE MIGHT DO. AFTER THE VAPOR TOWER & EJECTOR ORIFICE WERE CLEANED, THE PUMP OPERATED NORMALLY.

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

FUEL SYSTEM,PUMP..FOREIGN OBJECT

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

FUEL SYSTEM,PUMP..CONTAMINATION

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

FUEL SYSTEM,PUMP..BLOCKED(TOTAL)

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

FLUID,FUEL..STARVATION

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

DESCENT..IMPROPER..PILOT IN COMMAND

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

FLIGHT CONTROLS..IMPROPER USE OF..PILOT IN COMMAND

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

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