Robinson R44 Raven II — Airworthiness Directives

This document outlines the U.S. Airworthiness Directives (ADs) applicable to Robinson helicopters, specifically focusing on the R44 series. It includes mandatory inspections, modifications, and replacements necessary to maintain airworthiness and safety. The directives are aimed at operators, maintenance personnel, and regulatory bodies to ensure compliance with safety standards. Each directive specifies the action required, the affected components, and any associated service bulletins (SB) for further guidance. The document is crucial for ensuring the ongoing safety and reliability of the R44 helicopters in operation.

• Inspect C029-3 TR blades for cracks before each flight.
• Replace D270-1 Rev A thru E governor controller with Rev F or later.
• Check A185 riveted brackets as per AD 2024-23-01.
• Follow AD 2023-11-07 for radar altimeter operation restrictions.
• Modify engine RPM sensor wiring as per AD 2022-12-08.