NTSB Identification: FTW86LA037.
The docket is stored on NTSB microfiche number 29962.
Accident occurred Saturday, January 18, 1986 in YUKON, OK
Aircraft: BOEING A75N1, registration: N4935N
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 LEFT BRAKE LOCKED AFTER THE AIRCRAFT ROLLED A SHORT DISTANCE DURING LANDING. AIRCRAFT SLOWED UNTIL ABOUT 20 MPH FORWARD SPEED AND THEN FLIPPED INVERTED AND STOPPED. POST ACCIDENT EXAMINATION REVEALED THE BRAKE SHOE RETURN SPRING ON THE LEFT BRAKE WAS BROKEN. REASON FOR THE SPRING FAILURE WAS NOT DETERMINED.

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

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,TOTAL

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