EASA acts on A330/A340 APU failures

摘要

European safety regulators are ordering carriers to fit secondary casings to Airbus A330 and A340 auxiliary power units to prevent possible damage from uncontained failures. Investigators are still trying to understand the mechanism for the failures - experienced by at least two A330 operators on the ground - but the European Aviation Safety Agency states that collapse of the APU's drive-end bearing appears to be a preceding event. EASA has already issued emergency directives requiring inspection of APU sections for evidence of debris, a possible precursor to drive-end bearing problems.