Skip to content

AD 94-20905

Published 1994-08-25 · 92 models · 39,207 US-registered tails affected · Federal Register

Airworthiness Directives; Brackett Aircraft Company, Inc.; Air Filter Assemblies Installed on Airplanes Federal Register ↗

Abstract

This document proposes to adopt a new airworthiness directive (AD) that would apply to airplanes with certain Brackett Aircraft Company, Inc. (Brackett) air filter assemblies incorporating a neoprene gasket design installed between the carburetor heat box and the air filter frame. The proposed action would require repetitively inspecting (visually) the air filter frame for a loose or deteriorating gasket, and replacing any gasket found loose or deteriorated. An accident report where a Cessna Model 172 airplane experienced engine loss because a six-inch piece of neoprene gasket material was lodged in the carburetor prompted the proposed action. The actions specified by the proposed AD are intended to prevent gasket particles from entering the carburetor because of air filter gasket failure, which could result in partial or complete loss of engine power.

Applicability · by US fleet size

Compliance instructions

Required actions, compliance times, parts/serial numbers and methods of compliance are in the Federal Register publication — not paraphrased here. Read AD on Federal Register ↗