CESSNA CITATION JET — Airworthiness Directives

This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority of Australia, specifically for the Cessna 500 and 501 models equipped with pneumatic deicing boots. The directive aims to address safety concerns related to severe icing conditions that may affect the aircraft's performance and controllability. It outlines necessary revisions to the Aircraft Flight Manual (AFM), including warnings and procedures for pilots to follow when encountering severe icing. The AD emphasizes the importance of recognizing visual cues for severe icing and provides specific actions to mitigate risks associated with flying in such conditions. Compliance with the directive is mandatory within 30 days of its effective date, and it is crucial for maintaining the safety of operations involving these aircraft models.

• Models affected: Cessna 500 and 501 equipped with pneumatic deicing boots.
• Revise the AFM Limitations Section to include warnings about severe icing conditions.
• Visual cues for severe icing include extensive ice accumulation on the airframe and windscreen.
• Autopilot use is prohibited in severe icing conditions; pilots should disengage it if engaged.
• Compliance with the directive is required within 30 days of the effective date.