NTSB Identification: CHI85LA113.
The docket is stored on NTSB microfiche number 27524.
Accident occurred Sunday, February 17, 1985 in MT. VERNON, IL
Aircraft: RUTAN VARIEZE, registration: N101MW
Injuries: 2 Uninjured.

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 ACFT LNDG GEAR COLLAPSED AFTER SEVERAL LNDGS. THE PLT WAS PRACTICING TOUCH & GO LNDGS AND COMPLETED 5 CIRCUITS. DURING THE 6TH LNDG THE MAIN GEAR COLLAPSED AT TOUCHDOWN. THE NOSE GEAR THEN COLLAPSED THIS MODEL VARIEZE WAS EQUIPPED WITH A LNDG GEAR THAT WAS FOUND TO BE TOO WEAK. LATER VERSIONS HAD AN IMPROVED SYSTEM WHICH WAS STRONGER. NO PROVISION TO MAKE THE CHANGE MADATORY HAD BEEN MADE.

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

LANDING GEAR,MAIN GEAR SHOCK ABSORBING STRUT..FATIGUE

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

ACFT/EQUIP,INADEQUATE AIRFRAME..MANUFACTURER

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

LANDING GEAR,MAIN GEAR SHOCK ABSORBING STRUT..FAILURE,TOTAL

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

INSUFFICIENT STANDARDS/REQUIREMENTS,MANUFACTURER..MANUFACTURER

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