STOCKTON, CA, USA
N86689
HILLER UH-12L3
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.
Source: NTSB Aviation Accident Database
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