NTSB Identification: ATL83FA073
14 CFR Part 91: General Aviation
Accident occurred Thursday, December 23, 1982 in FORT PAYNE, AL
Probable Cause Approval Date: 12/23/1983
Aircraft: CESSNA 421B, registration: N3380Q
Injuries: 6 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.

DURING LANDING THE RIGHT MAIN LANDING GEAR SCISSORS BOLT & BUSHING PULLED THROUGH THE SCISSORS MOUNT HOLE ALLOWING THE LANDING GEAR TO ROTATE 90 DEG. AN INCORRECT WASHER (STANDARD 5/16 IN) HAD BEEN INSTALLED IN THE SCISSORS ASSEMBLY DURINGRECENT MAINTENANCE. CESSNA PARTS MANUAL CALLS FOR AN960-5/16 WASHER.

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

LANDING GEAR,MAIN GEAR ATTACHMENT..IMPROPER

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

LANDING GEAR,MAIN GEAR ATTACHMENT..DISCONNECTED

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

MAINTENANCE,INSTALLATION..IMPROPER..OTHER MAINTENANCE PERSONNEL

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