FAA · Airworthiness Directive
Airworthiness Directives; Brackett Aircraft Company, Inc.; Air Filter Assemblies Installed on Airplanes
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
Aircraft makes and models this AD applies to, sorted by US-registered fleet size.
Compliance instructions
The full AD text — required actions, compliance times, parts/serial numbers, and methods of compliance — is in the Federal Register publication. We do not paraphrase ADs because misreading the compliance instructions is a safety risk.