CESSNA 170B — Service Bulletins

This document is an Airworthiness Directive (AD) schedule for the Cessna 170 series aircraft, specifically applicable to the Cessna 170A and 170B models. Issued on June 30, 2011, it outlines mandatory inspections, modifications, and compliance requirements to ensure the safety and airworthiness of these aircraft. The document includes specific directives related to various components and systems, such as the windshield, mainplane rear spar, fuel system, and shoulder harnesses. Each directive specifies the applicability, requirements, compliance timelines, and effective dates, ensuring that operators maintain their aircraft in accordance with regulatory standards.

• DCA/CESS170/101 requires modification of the Narco Model 300 Position Light Flasher by September 1, 1959.
• DCA/CESS170/104 mandates windshield inspections every 100 hours TIS to prevent failure.
• DCA/CESS170/105 requires inspection of the mainplane rear spar for cracks every 100 hours TIS.
• DCA/CESS170/110 necessitates replacement of specific fuel selector valve components by March 24, 2000.
• DCA/CESS170/111 requires shoulder harness inspections within the next 100 hours TIS.
• DCA/CESS170/112 mandates seat adjustment mechanism inspections within the next 100 hours TIS.