AD/SF340/2 Amdt 1 Rudder Limiter High Speed Stop (Cth)

AIRWORTHINESS DIRECTIVE

On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/SF340/2 and issues the following AD under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

SAAB SF340 Series Aeroplanes

AD/SF340/2 Amdt 1 Rudder Limiter High Speed Stop 24/2009

Applicability:

All models with S/Nos. 340A-003 to -048.

Requirement:

Action in accordance with SAAB-Fairchild Service Bulletin SF340-27-018 Rev.1 and SF340-27-032.

The use of later approved revisions of these documents is acceptable for compliance with the requirements of this AD.

Note:  Swedish AD No. 1-006 Rev. A refers.

Compliance:

Prior to 31 March 2010, unless already accomplished.

This Amendment becomes effective on 28 January 2010.

Background:

Analysis/tests have demonstrated that it is necessary to reduce the range of travel imposed by the rudder limiter mechanism in the higher speed range to fully comply with certification requirements.

This amendment updates the documents required to comply with the latest edition of Swedish AD No. 1-006 Rev. A that introduces a structural clearance check of the rudder limiter hook and a modification contained in SB SF340-27-032.

William David
Delegate of the Civil Aviation Safety Authority

25 November 2009