Transport i infrastruktura · 31/10/2013

Agusta Issues Airworthiness Directive for A109 Helicopters to Address Turbine Wheel Failures

Agusta is issuing a new airworthiness directive for its A109A, A109AII, and A109C helicopters to address third-stage turbine wheel failures caused by excessive vibrations. The directive requires installing a placard and revising the rotorcraft flight manual to alert pilots to avoid specific engine speeds.