EASA SIB SAFO11008
Robinson R44 helicopters — Hydraulic Flight Control System Boost Servos
Summary
Robinson R44 helicopters — Hydraulic Flight Control System Boost Servos is a Safety Alert for Operators (SAFO 11008) issued by the Federal Aviation Administration. It addresses concerns regarding the hydraulic-boost servos on hydraulic system-equipped Robinson R44 helicopters following a fatal accident in Australia. The alert highlights the Australian Transport Safety Bureau's Safety Advisory Notice AO-2011-016-SAN-001 related to potential issues with flight control system components.
What Changed
This SAFO introduces a safety alert recommending increased attention to the inspection of hydraulic-boost servo connections and linkages on Robinson R44 helicopters equipped with hydraulic flight control systems. It does not amend existing regulations but serves as a proactive advisory based on a preliminary accident investigation.
Why It Matters
This alert is critical for operators, maintenance organizations, and inspectors of Robinson R44 helicopters as it highlights a potential safety risk that could lead to flight control failure. Addressing these concerns helps prevent accidents and ensures continued airworthiness and safety compliance for affected helicopters.
What To Do
Operators and maintenance facilities should promptly inspect the hydraulic-boost servo connections and linkages on all hydraulic system-equipped Robinson R44 helicopters. They should follow any additional guidance provided by the Australian Transport Safety Bureau's Safety Advisory Notice AO-2011-016-SAN-001. No specific compliance deadline is stated, so immediate attention is advised.
AI-generated summary from official EASA source document. Always verify against the original.