SAIB ACE-98-41 —

No. ACE-98-41 July 24, 1998

Published by: FAA, AFS-610, P.O. Box 26460, Oklahoma City, OK 73125 This is issued for informational purposes only and any recommendation for corrective action is not mandatory.

Introduction: The purpose of this Special Airworthiness Information Bulletin is to advise owners/operators of the Dornier Model 228 airplanes of the need to review the service information listed below. Background: The Small Airplane Directorate, Aircraft Certification Service, of the Federal Aviation Administration (FAA) conducted a review of specified Dornier Model 228 airplane service bulletins. The purpose of the review was to evaluate each service bulletin to determine the continued airworthiness safety aspect. The options considered by the FAA included; mandated compliance by initiation of an FAA Airworthiness Directive (AD), various forms of notices, or no further action required. Owners/operators of Dornier Model 228 airplanes should also note that there have been Airworthiness Directives issued against these airplanes concerning other safety issues. Recommendations: The service information identified in this document is not considered appropriate for AD action at this time, however, the FAA strongly suggests that all owners/operators of the Dornier Model 228 airplanes review their compliance with the service information listed below.

Service Information No. Date Title SB-228-024 Revision 1 August 5, 1988 Stabilizer Connection - Modified Stabilizer/Fuselage Supports SB-228-035 Revision 1 February 18, 1986 Replacement of Rivet on Horizontal Stabilizer Brackets and Inspection of Horizontal Stabilizer Connection Area SB-228-143 March 3, 1989 Electrical System - Essential Bus Modification SB-228-200 September 9, 1992 Improvement of Lightning Protection SB-228-201 Revision 1 November 16, 1992 Main Brake System - Modification of Master Cylinder SB-228-227 Revision 1 June 22, 1998 Flight Controls - Inspection of Aileron Control Rods.

2 ACE-98-41

SI-228-019 November 13, 1986 1) Inboard Wheel Bearing Cup Bore Repair 2) Main Wheel Assembly Inspection The service information document can be obtained from: Dornier Luftfahrt GmbH Customer Support P.O. Box 1103 D-82230 Wessling Germany Phone: (08153) 300; Fax: (08153) 302985

For Further Information Contact: Karl Schletzbaum, Aerospace Engineer, FAA, Project Support Branch (ACE-112), Small Airplane Directorate, 1201 Walnut, Suite 900, Kansas City, Missouri 64106; telephone: (816) 426-6934.