Cessna 170 — Airworthiness Directives

This Airworthiness Directive (AD) issued by the Federal Aviation Administration (FAA) addresses safety concerns related to specific propellers installed on various aircraft, including the Cessna 170 series. The directive mandates compliance actions to prevent propeller blade separation and potential loss of the aircraft. It outlines procedures for inspecting and replacing anti-ice boots on Hartzell propellers that have been modified or installed using specific methods. The document is crucial for owners and operators of affected aircraft to ensure compliance and maintain safety standards.

• This AD applies to Cessna 170 series aircraft with specific Hartzell propellers.
• Compliance is required to prevent propeller blade separation and potential loss of the aircraft.
• Propellers with fewer than 500 hours TIS must replace anti-ice boots within 200 hours from the AD's effective date.
• Alternative compliance methods can be proposed but require FAA approval.
• The effective date of this AD is April 29, 2003.