Robinson R44 Cadet — Supplemental Type Certificate

This document is an Airworthiness Directive (AD) schedule for the Robinson R44 series helicopters, specifically addressing the R44 Raven and R44 Raven II models. Issued by the CAA of New Zealand on June 19, 2025, it outlines mandatory maintenance and inspection requirements to ensure the safety and airworthiness of these helicopters. The document includes various directives related to components such as the cyclic control system, main rotor gearbox, and fuel systems, among others. Each directive specifies the applicable serial numbers, compliance timelines, and effective dates, providing critical information for maintenance personnel and operators to adhere to safety standards and regulatory requirements.

• Compliance with ADs is mandatory for safety and airworthiness.
• Specific serial numbers are applicable for each directive, affecting maintenance schedules.
• Timely inspections and replacements can prevent catastrophic failures.
• Adjustments to warning systems are crucial for pilot awareness during flight.
• Modification of fuel systems is necessary to prevent fire hazards.