EASA Regulations for Air Comm Corporation CAA UK AAN 25273

3 airworthiness directives and regulations affecting Air Comm Corporation CAA UK AAN 25273.

EASA AD US-2021-24-15

Tail Rotor Drive - Oil Cooler Blower Shaft Drive Ring Spline Teeth and Mating Area Spline Teeth - Inspection

Federal Register Volume 86, Number 237, Final Rule FAA Airworthiness Directive 2021-24-15 addresses Bell Textron Canada Limited Model 206L-1, 206L-3, and 206L-4 helicopters equipped with certain Air Comm Corporation air conditioning systems. This directive mandates inspection of the oil cooler blower shaft's drive ring spline teeth and mating spline teeth for deformation and fretting. It targets helicopters with specific Supplemental Type Certificate (STC) air conditioning system part numbers installed.

Dec 16, 2021

Airworthiness DirectiveMaintenanceSafety MgmtAir Comm Corporation CAA UK AAN 25273Bell 206Bell Textron Canada 206L-1Bell Textron Canada 206L-3Bell Textron Canada 206L-4

EASA AD CF-2020-15

Tail Rotor Drive — Failure of Tail Rotor Drive Shaft Coupling Bolted Connections

Canadian Airworthiness Directive CF-2020-15 addresses the failure risk of tail rotor drive shaft coupling bolted connections on Bell Textron Canada Limited model 206 series helicopters, including 206, 206A, 206B, and 206L variants. The directive mandates replacement of certain MS21042-series nuts with more reliable NAS9926-series nuts or alternate parts to prevent loss of tail rotor drive and potential loss of helicopter control. It also covers specific configurations affected by Supplemental Type Certificates SH2750NM and SH99-202 and provides tailored corrective actions for different helicopter groups.

May 14, 2020

Airworthiness DirectiveMaintenanceSafety MgmtAir Comm Corporation CAA UK AAN 25273Bell 206Bell 206ABell 206BBell 206L

EASA AD US-2018-25-17

Air Conditioning - Electrical Connectors - Replacement

Airworthiness Directive 2018-25-17 is a final rule issued by the FAA addressing Air Comm Corporation air conditioning systems installed on various Airbus Helicopters models including AS350 series and EC130B4, as well as Bell 206 and 407 series helicopters. The directive mandates the replacement of certain electrical connectors in these air conditioning systems to prevent overheating. It applies to specific Air Comm part numbers installed on these helicopters.

Jan 7, 2019

Airworthiness DirectiveMaintenanceSafety MgmtAir Comm Corporation CAA UK AAN 25273Airbus Helicopters AS 350Airbus Helicopters EC 130Bell 206Bell 407Airbus Helicopters AS350Airbus Helicopters EC130B4