AT72, Zurich Switzerland, 2014

AT72, Zurich Switzerland, 2014

Summary

On 4 December 2014, directional control of an ATR 72-200 was compromised shortly after touchdown at Zurich after slightly misaligned nose wheels caused both tyres to be forced off their wheels leaving the wheel rims in direct contact with the runway surface. The Investigation found that the cause of the misalignment was the incorrect installation of a component several months earlier and the subsequent failure to identify the error. Previous examples of the same error were found and a Safety Recommendation was made that action to make the component involved less vulnerable to incorrect installation should be taken.

Description

On 4 December 2014, an ATR 72-200 (D-ANFE) being operated by the German Company Avanti Air on a scheduled passenger flight from Dresden to Zurich as DWT286 on behalf of Etihad Regional touched down normally on runway 14 at destination in normal day visibility. Soon afterwards, both nose landing gear tyres failed and the wheel rims dropped onto the runway surface. After clearing the runway, the aircraft was stopped, the emergency services were called for and the 30 occupants were eventually taken to the terminal by bus. The aircraft nose landing gear sustained substantial damage and the runway surface - minor damage.

Investigation

An Investigation was carried out by the Swiss Transportation Safety Investigation Board (STSB). Data from the FDR and the 2 hour CVR were successfully downloaded and used to assist the Investigation.

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