NTSB Identification: DEN83FTE04
14 CFR Part 91: General Aviation
Accident occurred Monday, November 22, 1982 in ENGLEWOOD, CO
Probable Cause Approval Date: 11/22/1983
Aircraft: SCORPION 133, registration: N4KF
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 HELICOPTER CRASHED WHILE MANEUVERING AT LOW ALTITUDE. THE PILOT HAD MODIFIED THE COWLING AND HAD ONLY COMPLETED THE FIRST PHASE OF HIS TRAINING IN THIS AIRCRAFT. THE SCHOOL WARNED THE STUDENT NOT TO TRY ADVANCED FLYING WITHOUT MORE INSTRUCTION. A WITNESS OBSERVED THE PILOT REFUELING THE HELICOPTER WITH A PARTIALLY FILLED, 5 GAL CAN OF AUTOMOBILE GASOLINE. HE STATED THAT HE THOUGHT THE FUEL TANK WAS NEARLY EMPTY WHEN THE PILOT BEGAN REFUELING. THEREFORE, THE WITNESS ESTIMATED THAT THE HELICOPTER HAD 5 GAL OR LESS ON BOARD WHEN IT TOOK OFF. HE ESTIMATED THAT THE ENGINE USED 8 TO 9 GAL PER HOUR. AFTER FLYING 15 TO 20 MIN, THE HELICOPTER ENTERED A DESCENT AND CRASHED. VIRTUALLY NO FUEL WAS FOUND IN THE HELICOPTER, AND THERE WAS NO EVIDENCE THAT FUEL HAD DRAINED OUT AT THE CRASH SITE.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

FLUID,FUEL..EXHAUSTION

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

FUEL SUPPLY..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

OVERCONFIDENCE IN PERSONAL ABILITY..PILOT IN COMMAND


Contributing Factors

INADEQUATE TRANSITION/UPGRADE TRAINING..PILOT IN COMMAND

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