Document ID: chunk:federal_register_of_legislation:F2008L01943:body:0:p1
Version: federal_register_of_legislation:F2008L01943
Segment Type: other
Provision Reference: 
Character Range: 0–3254

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/ROTAX/22 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.

Rotax Piston Engines
AD/ROTAX/22 Amdt 1  Camshaft Hydraulic Tappet Wear  7/2008

Applicability:  BRP-Rotax GmbH & Co. KG; Bombardier-Rotax GmbH & Co. KG; Bombardier-Rotax GmbH:

                Rotax 912 A series engines from serial number (S/N) 4,410.681 to S/N 4,410.712; and

                Rotax 912 F series engines from S/N 4,412.912 to S/N 4,412.921; and

                Rotax 912 S series engines from S/N 4,923.263 to S/N 4,923.380; and

                Rotax 914 F series engines from S/N 4,420.595 to S/N 4,420.637; and

                Any S/N engine on which the camshaft and/or the hydraulic valve tappets have been replaced (e.g. during engine repair or general overhaul) after 1 January 2006 up to and including 1 December 2007.

                This AD is not applicable to Engines which have hydraulic valve tappets Part Number (P/N) 854.095 installed during production and engines which have (e.g. during engine repair or general overhaul) P/N 881.831 spare part kit installed, which includes hydraulic valve tappet P/N 854.095, are not affected by the requirements of this revised AD.

                Engines with P/N 854.095 hydraulic valve tappets installed prior to delivery by
                BRP-Rotax can be identified by (minor) modification number references for each specific engine design: 85-05 for 912 A; F50-05 for 912 F; S34-04 for 912 S; and F45-04 for 914 F engines.  These reference numbers are documented in each individual engine Release Certificate.

                Note 1:  The installation of these engines was either done by the respective aircraft manufacturer or through modification of the aircraft by Supplemental Type Certificate.

                The following S/N engines have already been inspected before first installation or first engine start up according to section 1.5 Compliance (a) of BRP-Rotax
                SB-912-051 and SB-914-034 respectively:

                 Rotax 912 A series from S/N4,410.709 to S/N4,410.712;

                 Rotax 912 F series from S/N4,412.920 to S/N4,412.921;

                 Rotax 912 S series from S/N4,923.381 onwards; and

                 Rotax 914 F series from S/N4,420.633 to S/N4,420.637.
Requirement:     1. Inspect the magnetic plug in accordance with BRP-Rotax ASB-912-051 or
                 ASB-914-034, both dated 13 October 2006, or later approved revision as is applicable.

                 2. Repeat the inspection as detailed in Requirement 1 of this AD.

                 3.