Incident Overview
Date: Wednesday 18 May 1966
Aircraft Type: Douglas DC-7
Owner/operator: United Airlines
Registration Number: N6339C
Location: Denver-Stapleton International Airport, CO (DEN) –
ÿ United States of America
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 4
Component Affected: Landing gear legLanding gear leg
Investigating Agency: NTSBNTSB
Category: Accident
On landing the nose wheel tire recap separated, striking and disconnecting the nosegeartorquelinkpins, the landing gear leg collapsed. The DC-7 named ‘Mainliner Capt. Ralph Johnston’ was subsequently sold to Barter Machinery & Supply and broken up.On landing the nose wheel tire recap separated, striking and disconnecting the nosegeartorquelinkpins, the landing gear leg collapsed. The DC-7 named ‘Mainliner Capt. Ralph Johnston’ was subsequently sold to Barter Machinery & Supply and broken up.
Description
On landing the nose wheel tire recap separated, striking and disconnecting the noseÿgearÿtorqueÿlinkÿpins. The landing gear leg then collapsed. The DC-7 named “Mainliner Capt. Ralph Johnston” was consequently sold to Barter Machinery & Supply and broken up. PROBABLEÿCAUSE(S) airframeÿ-ÿlandingÿgear:ÿnosewheelÿassemblies airframeÿ-ÿlandingÿgear:ÿwheels,tires,axles miscellaneousÿacts, conditionsÿ-ÿmaterialÿfailure FACTOR(S) miscellaneousÿacts, conditionsÿ-ÿvibration, excessive
Primary Cause
Airframe-landinggear:nosewheelassemblies, airframe-landinggear:wheels, tires, axles, miscellaneousacts, conditions-materialfailure, conditions-vibration, excessiveAirframe-landinggear:nosewheelassemblies, airframe-landinggear:wheels, tires, axles, miscellaneousacts, conditions-materialfailure, conditions-vibration, excessiveShare on:
