EASA SIB 2021-13
Drive Train Failure
Summary
EASA Safety Information Bulletin No. 2021-13 is an airworthiness bulletin addressing a drive train failure issue in Robinson Helicopter Company R22 and R44 helicopters. The bulletin references the Civil Aviation Safety Authority of Australia's Airworthiness Bulletin 63-010 Issue 1, which highlights a failure in a Robinson R44 drive train component identified by the Australian Transport Safety Bureau. EASA concurs with the recommendations issued by CASA to ensure awareness among operators and maintenance organizations in EASA Member States.
What Changed
This bulletin introduces awareness of a specific drive train component failure in Robinson R44 helicopters based on findings from the Australian Transport Safety Bureau investigation AO-2020-064. It endorses the recommendations from CASA's Airworthiness Bulletin 63-010 Issue 1 but does not impose mandatory requirements. The bulletin serves as an informational update to owners and operators within EASA jurisdictions.
Why It Matters
The bulletin is important for aviation professionals because it alerts operators, maintenance organizations, and licensed engineers to a potential safety issue affecting Robinson R22 and R44 helicopters. Understanding and following the recommended inspections or maintenance actions can prevent in-flight drive train failures, thereby enhancing flight safety and reducing the risk of accidents. It also ensures compliance with recognized safety information from other aviation authorities.
What To Do
Affected stakeholders should review and follow the recommendations outlined in CASA Airworthiness Bulletin 63-010 Issue 1 regarding the drive train component failure. Operators and maintenance personnel should monitor the condition of the drive train components on Robinson R22 and R44 helicopters and coordinate with Robinson Helicopter Company for technical assistance if needed. There are no mandatory compliance deadlines specified in the bulletin.