NTSB Identification: DEN84LU009.
The docket is stored on NTSB microfiche number 25386.
Accident occurred Sunday, July 22, 1984 in ERIE, CO
Aircraft: EIPPER QUICKSILVER MXL, registration: NONE
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE ULTRALIGHT WAS PROCEEDING IN A NORMAL TAKEOFF WHEN THE ENGINE LOST PARTIAL POWER AT ABOUT 100 FT AGL. THE PLT TURNEDTHE VEHICLE TO AVOID TREES AND A RIVER. DURING THE HARD FORCED LANDING, THE VEHICLE WAS DAMAGED AND THE PLT HURT HIS LEG. POST ACCIDENT INVESTIGATION REVEALED A SPARK PLUG SHORTED BY A METALLIC PARTICLE ACROSS THE FILAMENTS. ACCORDING TOTHE PLT, THIS WAS THE FOURTH TIME THIS HAD OCCURRED.

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

IGNITION SYSTEM,SPARK PLUG..CONTAMINATION

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