NTSB Identification: SEA85LA158.
The docket is stored on NTSB microfiche number 28803.
Accident occurred Monday, July 08, 1985 in PULLMAN, WA
Aircraft: RAND/ROBINSON KR2, registration: N82CG
Injuries: 1 Serious.

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 PLT HAD BEEN HAVING NUMEROUS PROBLEMS WITH HIS HOMEBUILT ACFT'S ENG RUNNING ROUGH BEFORE THIS FLT. SHORTLY AFTER TAKEOFF A LOSS OF PWR OCCURRED. IT WAS A HOT DAY WITH THE TEMP BEING 90 DEGS F OR BETTER. FAA INSPECTORS FOUND THE TOURQUE VALUE TO BE QUESTIONABLE ON ALL SPARK PLUGS. THE CARBURETOR AND MIXTURE CABLES SHOWED A SMALL AMOUNT OF SLIPPAGEWITHIN THE HOUSING. THE MAIN PWR WIRE PROVIDING THE NECESSARY 12 VOLTS PWR FOR THE OPERATION OF THIS SYSTEM WAS FOUND LOOSE ON THE TERMINAL OF THE ACFT'S MASTER SWITCH. TWO TOTALLY DIFFERENT IGNITION SYSTEMS HAD BEEN INSTALLED. FAA INSPECTORS STATED THAT THERE WAS NO ACCURATE MEANS OF DETERMINING THE TIMING.

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

REASON FOR OCCURRENCE UNDETERMINED


Contributing Factors

TERRAIN CONDITION..RISING


Contributing Factors

WEATHER CONDITION..TEMPERATURE EXTREMES


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..PILOT IN COMMAND

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