Incident Overview
Date: Thursday 3 October 1985
Aircraft Type: Tupolev Tu-134A-3
Owner/operator: Malv – Hungarian Airlines
Registration Number: HA-LBN
Location: Zrich-Kloten Airport (ZRH/LSZH) –
ÿ Switzerland
Phase of Flight: Take off
Status: Substantial, repaired
Casualties: Fatalities: 0 / Occupants: 73
Component Affected: Left landing gearLeft landing gear
Investigating Agency: BFU Switz.BFU Switz.
Category: Accident

A Tupolev Tu-134A-3, HB-LBN, experienced a catastrophic landing at Budapest due to a collapse of its left landing gear during takeoff. The aircraft tilted sideways and rested on the ground, resulting in minor damage to the aircraft.A Tupolev Tu-134A-3, HB-LBN, experienced a catastrophic landing at Budapest due to a collapse of its left landing gear during takeoff. The aircraft tilted sideways and rested on the ground, resulting in minor damage to the aircraft.
Description
The Tupolev Tu-134A-3, HB-LBN, was lined up at the start of runway 28, ready to operate flight 9565 to Budapest. As soon as it received takeoff clearance, the crew accelerated both engines while keeping the aircraft stationary. As they prepared to release the wheel brakes, they noticed that the left landing gear was collapsing; the aircraft tilted sideways until the left wing rested on the ground. The crew reduced power and shut down the engines. All occupants were unharmed; only the aircraft was damaged. Cause The accident was due to the collapse of the left landing gear during takeoff, resulting from a fatigue-induced failure of the lower attachment eyelet of the hydraulic retraction actuator.
Primary Cause
Fatigue-induced failure of the lower attachment eyelet of the hydraulic retraction actuator.Fatigue-induced failure of the lower attachment eyelet of the hydraulic retraction actuator.Share on: