CESSNA 175 — Airworthiness Directives

This document is an Airworthiness Directive (AD) issued by the Federal Aviation Administration (FAA) that applies to various Cessna aircraft models, including the Cessna 175. The directive mandates compliance with specific modifications to ensure safety and reliability in fuel tank venting systems. The AD is effective from May 30, 1988, and outlines the necessary actions to be taken by aircraft owners and operators. It provides detailed instructions for installing vented fuel caps and related components to prevent fuel tank vent obstruction. Compliance is required unless the modifications have already been accomplished. The document serves as a critical reference for maintaining airworthiness in the specified Cessna models.

• Compliance with AD 79-10-14 is required within 100 hours of time-in-service after May 30, 1988.
• Install vented fuel caps as per Cessna Service Letter SE77-6 or modify existing caps according to specified STCs.
• Only one vented cap is needed per tank if two caps are present.
• Modification can be performed by authorized personnel under FAR 43, with proper documentation required.
• Alternative compliance methods may be approved by the FAA.