A319/A319, en-route, South west of Basle-Mulhouse France, 2010

A319/A319, en-route, South west of Basle-Mulhouse France, 2010

Summary

On 29 June 2010, an Easyjet Switzerland Airbus A319 inbound to Basle-Mulhouse and an Air France Airbus A319 outbound from Basle-Mulhouse lost separation after an error made by a trainee APP controller under OJTI supervision during procedural service. The outcome was made worse by the excessive rate of climb of the Air France aircraft approaching its cleared level and both an inappropriate response to an initial preventive TCAS RA and a change of track during the ensuing short sequence of RAs by the Training Captain in command of and flying the Easyjet aircraft attributed by him to his situational ‘anxiety’.

Description

On 29 June 2010, an Airbus A319 (HB-JZQ) being operated by Easyjet Switzerland on a scheduled passenger flight from Palma to Basel Mulhouse as DS1058 and another Airbus A319 (F-GRHA) being operated by Air France on a scheduled passenger flight from Basel-Mulhouse to Paris CDG as AF7343 lost separation whilst following clearances given by a trainee controller which brought them into conflict. One of the cabin crew of the Easyjet aircraft, which was crewed by a Captain under training and a Training Captain, sustained minor injuries during the abrupt manoeuvring which followed the annunciated RAs.

Investigation

An Investigation was carried out by the French Bureau d'Enquêtes et d'Analyses (BEA). Flight Data Recorder (FDR)/QAR data was available for both aircraft but Cockpit Voice Recorder (CVR) data was available only for the Air France aircraft after no attempt was made to prevent overwriting of the Easyjet aircraft CVR.

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