CTHIn ForceLegislation
AD/DO 328/72 - Elevator, Rudder and Aileron Trim Tab Assemblies
//
© 2026 Zoe. All rights reserved.
Zoe is a legal information platform. Always consult the Federal Register of Legislation for authoritative text.
AD/DO 328/72 - Elevator, Rudder and Aileron Trim Tab Assemblies
Start here
Turn the raw legal text into a practical explanation grounded in AD/DO 328/72 - Elevator, Rudder and Aileron Trim Tab Assemblies.
| AD/DO 328/72 | Elevator, Rudder and AileronTrim Tab Assemblies | 5/2009 |
|---|
| Applicability: | Model 328-100 aircraft, all serial numbers; and,Model 328-300 aircraft, all serial numbers. |
|---|---|
| Requirement: | Action in accordance with the requirements of EASA AD 2009-0044.Note: 328 Support Services GmbH Service Bulletins SB-328-27-483 original issue, and SB-328J-27-233 original issue, or later EASA approved revisions, refer. |
| Compliance: | As specified in the Requirement document, with a revised effective date of7 May 2009. |
| This Airworthiness Directive becomes effective on 7 May 2009. | |
| Background: | During a recent Aileron Dual Load Path and Linkage Inspection, which is a certification maintenance requirement (CMR) task, the installed control rods were found to be corroded. An investigation revealed that the Tab Side Fitting was cracked. Subsequently, similar cracks were found in a supporting lever of the Control Rod attachment fitting of the Trim Tab on another aircraft, during the applicable CMR inspection. This condition, if not corrected, could lead to structural failure of the dual path attachment arrangement of the affected trim and spring tabs, possibly resulting in a flutter problem that could lead to loss of control of the aircraft. |
Image unavailable in extracted text
David Villiers
Delegate of the Civil Aviation Safety Authority
11 March 2009