EASA Regulations for Textron Aviation 550 (Citation)

2 airworthiness directives and regulations affecting Textron Aviation 550 (Citation).

EASA SIB AIR-22-10

Engine Cowling System - Quarter-Turn Fastener Maintenance Information

The FAA Special Airworthiness Information Bulletin AIR-22-10 provides maintenance information regarding the engine cowling system quarter-turn fasteners on Textron Aviation Inc. turbofan-powered airplanes. These fasteners, used on engine nacelle cowl doors and related components, have been linked to incidents of cowl damage and separation, potentially affecting airplane handling. The bulletin addresses the hazards associated with improper installation and maintenance of these fasteners and offers guidance to pilots, owners, operators, and maintenance personnel.

May 4, 2022

Safety Information BulletinMaintenanceSafety MgmtTextron Aviation 400 (Beechjet)Textron Aviation 4000 (Horizon)Textron Aviation 500Textron Aviation 550 (Citation)Textron Aviation 510 (Mustang)Textron Aviation 525 (CitationJet)Textron Aviation 560Textron Aviation 560XLTextron Aviation 650Textron Aviation 680Textron Aviation 700 (Longitude)Textron Aviation 750 (Citation X)Textron Aviation BAeTextron Aviation BHTextron Aviation DHTextron Aviation HS.125Textron Aviation HawkerTextron Aviation MU-300 (Diamond)

EASA SIB AIR-21-15R1

Aeroplanes with Honeywell Primus II Radio System with Radio Management Unit (RMU) 855 - Navigation System

The FAA Special Airworthiness Information Bulletin SAIB: AIR-21-15 R1 provides information regarding the Honeywell Primus II Radio System with Radio Management Unit (RMU) 855 installed on various aircraft models including 328 Support Services GmbH Model 328-100 and -300, Learjet Model 45, Embraer EMB-135 and EMB-145 series, Textron Aviation models 500, 550, 560, 650, Hawker 800 series, Bombardier CL-600 and BD-700 series, Viking Air CL-215-6B11, and Textron Aviation Model 750. The bulletin addresses the potential for inadvertent disabling of the Automatic Dependent Surveillance–Broadcast (ADS-B) Out function due to certain avionics power-up sequences involving the RMU-855. This is an informational bulletin and does not mandate regulatory action.

Oct 13, 2021

Safety Information BulletinFlight OpsSafety MgmtBombardier BD-700Bombardier CL-600 (Challenger)Deutsche Aircraft Gmbh Dornier 328Embraer EMB-135Embraer EMB-145Learjet, 45Textron Aviation 500Textron Aviation 550 (Citation)Textron Aviation 560Textron Aviation 560XLTextron Aviation 650Textron Aviation 750 (Citation X)Textron Aviation HawkerViking Air CL-215