NTSB Identification: CHI86FEV05.
The docket is stored on NTSB microfiche number 32298.
Accident occurred Sunday, September 21, 1986 in LACON, IL
Aircraft: Nord (SNCAN) STAMPE SV4C, registration: N73NS
Injuries: 2 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 PLT LOST CONTROL OF THE ACFT DURING THE LANDING ROLL, & SUBSEQUENTLY, ONE OF THE MAIN LANDING GEAR COLLAPSED. HE STATED THAT HE APPLIED THE LEFT 'DRAG BRAKE' (A BRAKING DEVICE ACTIVATED DURING THE LAST PORTION OF RUDDER TRAVEL) & OVERCORRECTED TO THE LEFT. HE THEN ACTIVATED THE RIGHT 'DRAG BRAKE' & OVERCORRECTED TO THE RIGHT. THIS RESULTED IN A GROUND LOOP & ACFT DAMAGE.

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

BRAKES(NORMAL)..IMPROPER USE OF..PILOT IN COMMAND

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

DIRECTIONAL CONTROL..NOT MAINTAINED..PILOT IN COMMAND

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

GROUND LOOP/SWERVE..INADVERTENT..PILOT IN COMMAND

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