Incident Overview
Date: Friday 20 August 1971
Aircraft Type: Convair CV-580
Owner/operator: Allegheny Airlines
Registration Number: N5844
Location: Pittsburgh International Airport, PA (PIT) –
ÿ United States of America
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 53
Component Affected: Right Main Landing Gear WheelsRight Main Landing Gear Wheels
Investigating Agency: NTSBNTSB
Category: Accident
On touchdown, a right main landing gear issue was detected. Upon aborted landing and subsequent takeoff, the right main gear wheels separated from the landing gear, resulting in a turn to the right due to drag and a collapse of the left gear. A shear failure of the upper bearing lock pin ultimately caused the failure of the torque links, leading to the separation of the lower unit.On touchdown, a right main landing gear issue was detected. Upon aborted landing and subsequent takeoff, the right main gear wheels separated from the landing gear, resulting in a turn to the right due to drag and a collapse of the left gear. A shear failure of the upper bearing lock pin ultimately caused the failure of the torque links, leading to the separation of the lower unit.
Description
On touchdown there appeared to be a problem with the right main landing gear. When the pilot aborted the landing and took off again, the wheels separated from the right gear. Upon landing on runway 28R, the aircraft turned to the right due to the drag on the right gear stub and the left gear collapsed. A shear failure of the single upper bearing lock pin had ultimately caused the failure of the torque links, permitting the lower unit to separate. PROBABLE CAUSE: airframe – landing gear: main gear-shock absorbing assy,struts,attachments,etc. miscellaneous acts,conditions – material failure
Primary Cause
Airframe – Landing Gear: Main gear-shock absorbing assembly, struts, attachments, etc.Airframe – Landing Gear: Main gear-shock absorbing assembly, struts, attachments, etc.Share on:
