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Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
25.954-1 Transport Airplane Fuel System Lightning Protection

This advisory circular (AC) provides guidance for showing compliance with the airworthiness regulations for transport category airplanes regarding lightning protection of fuel tanks and systems.

Active AIR-600 2018-09-24
25-7D Flight Test Guide for Certification of Transport Category Airplanes Including Change 1

This change, advisory circular (AC) 25-7D Change 1, incorporates updates and adds or revises guidance for stall in-ground-effect and for tailwind and crosswind capability.

 Active AIR-600 2018-05-04
25.981-1D Fuel Tank Ignition Source Prevention Guidelines

This AC provides guidance for showing compliance with § 25.981, which provides the certification requirements for the prevention of ignition sources, other than lightning, within the fuel tanks of transport category airplanes.

Active AIR-600 2018-09-24