NTSB Identification: LAX82FA245
14 CFR Part 137: Agricultural
Accident occurred Thursday, July 01, 1982 in STOCKTON, CA
Probable Cause Approval Date: 07/01/1983
Aircraft: HILLER UH-12L3, registration: N86689
Injuries: 1 Uninjured.

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 PILOT REPORTED THAT THE ENGINE LOST POWER AT ABOUT 5 FT AGL AS HE WAS TAKING OFF FROM A TRAILER. HE TURNED TO AVOID A GAS AND WATER TANK NEAR THE POLL TRUCK. THE HELICOPTER CAME TO REST, RIGHT-SIDE-UP, BUT WAS DAMAGED. A FUEL LEAK WAS FOUND IN A LINE THAT ATTACHED TO THE FUEL INJECTOR REGULATOR. THE LEAK OCCURRED WHERE THE LINE WAS FLARED FOR A B-NUT CONNECTION. A METALLURGICAL EXAMINATION REVEALED THAT CRACKS OCCURRED FROM STRESS CORROSION.

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

FUEL SYSTEM,LINE..SMOKE

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

FLUID,FUEL..LEAK

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

FLUID,FUEL..STARVATION



Contributing Factors

TERRAIN CONDITION..HIGH OBSTRUCTION(S)

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