Incident Overview

Date: Saturday 25 July 1992
Aircraft Type: Learjet 24XR
Owner/operator: Bonanza Hire
Registration Number: ZS-MGJ
Location: Lanseria Airport (HLA) – ÿ South Africa
Phase of Flight: Landing
Status: Substantial, repaired
Casualties: Fatalities: 0 / Occupants: 2
Component Affected: Nosegear centralizing camNosegear centralizing cam
Category: Accident
An aircraft experienced a catastrophic failure during a towed ascent, resulting in a violent runway skid and collision with meteorological equipment. The damaged nose gear caused an off-set position, leading to a violent left-side slewing upon landing.An aircraft experienced a catastrophic failure during a towed ascent, resulting in a violent runway skid and collision with meteorological equipment. The damaged nose gear caused an off-set position, leading to a violent left-side slewing upon landing.

Description

The nose gear centralizing cam was damaged when the aircraft was towed up a steep incline. When the oleo extended after takeoff, the nosewheel adopted an off-set position and remained in that position after the gear was extended for landing. On landing the aircraft slewed violently to the left as the nosewheel touched the runway surface. The aircraft left the runway, the gear collapsed, and the aircraft collided with meteorological observation equipment adjacent to the runway.

Primary Cause

Nose gear damage during a steep incline ascent coupled with extended oleo leading to an off-set position and subsequent violent slewing.Nose gear damage during a steep incline ascent coupled with extended oleo leading to an off-set position and subsequent violent slewing.

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