For the past weeks, Eurocopter has continued to regularly communicate with oil and gas customers/operators and industry representatives concerning the EC225 main gearbox shaft failures, while respecting the confidentiality of the official accident investigation.
The company has provided an overview of its approach to the root cause analysis performed during the past several weeks and has reported a most probable root cause. At this stage, this Eurocopter assumption has not been proven by tests. Based on this finding, Eurocopter has announced the launch of a third test campaign, to be initiated in late January, with more sophisticated evaluations that focus on the most probable cause. Bench test results are expected at the end of February.
In addition, evaluations will continue on three alternative scenarios for the failures’ cause and all results will be shared with the UK AAIB.
The overall methodology is also supported by an external company – Shainin Engineering, which participated in identifying the Airbus A380 wing crack issues.
The investigation remains the highest priority for the Eurocopter teams and the Group is fully committed to complete testing and agree on corrective measures with the authorities and the various industry stakeholders.
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