Aviation Accident Summaries

Aviation Accident Summary LAX91LA054

HALEAKLA NAT PK, HI, USA

Aircraft #1

N1113L

MCDONNELL DOUGLAS 369D

Analysis

THE PILOT WAS ATTEMPTING TO UPRIGHT AN ANIMAL CAGE BY PULLING IT OVER WITH A 'LONG LINE' ATTACHED TO THE HELICOPTER. THERE WAS APPROXIMATELY 115 POUNDS OF FUEL IN THE HELICOPTER'S FUEL TANK. THE POWER PLANT FAILED WHEN THE HELICOPTER'S NOSE RAISED DURING THE TOW. THE HELICOPTER LANDED HARD COLLAPSING THE LEFT REAR LANDING GEAR STRUT AND THE MAIN ROTOR BLADES IMPACTED POSTS AROUND THE PERIMETERS OF THE CORRAL OVER WHICH THE HELICOPTER WAS HOVERING. DUPLICATING THE AIRCRAFT'S PITCH ATTITUDE AND FUEL LOAD, AT THE TIME OF THE ACCIDENT, REVEALED THAT THE FUEL PICK-UP POINT IS UN-PORTED AT FUEL QUANTITY LEVELS AT OR BELOW 115 POUNDS.

Probable Cause and Findings

FUEL STARVATION DUE TO THE UNPORTING OF THE FUEL SUPPLY PICK-UP.

 

Source: NTSB Aviation Accident Database

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