RJ1H, vicinity Zurich Switzerland, 2011

RJ1H, vicinity Zurich Switzerland, 2011

Summary

On 20 July 2011, the flight crew of a Swiss European Avro RJ-100 on a positioning flight from Nuremburg to Zurich responded inappropriately to an unexpected ‘bank angle’ alert in IMC. Near loss of control followed during which a PAN was eventually declared. The situation was resolved by a belated actioning of the QRH checklist applicable to the failure symptoms experienced. The subsequent investigation attributed the event to inappropriate crew response to a failure of a single IRU and poor manual flying skill whilst the situation was resolved.

Description

On 20 July 2011, an Avro RJ100 being operated by Swiss European Airlines on a positioning flight from Nuremburg to Zurich experienced a near loss of control after their initial response to an unexpected ‘bank angle’ alert whilst on approach at destination. After receiving navigation assistance from ATC pending restoration and use of valid aircraft navigation displays, normal flight path control was regained and a second approach to land was completed uneventfully.

Investigation

An Investigation was carried out by the Aviation Division of the Swiss AIB. Flight Data Recorder (FDR) data as recorded was successfully downloaded but pitch and bank angle were missing for the incident part of the flight. The Cockpit Voice Recorder (CVR) CB was not tripped after the flight and so the relevant recording was overwritten.

The full content of this page is available to registered users only.
Please Log in or Register

SKYbrary Partners:

Safety knowledge contributed by: