AD/CIRRUS/6 - Brake Caliper Piston O-Ring Seals (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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.

Cirrus Design SR20 and SR22 Series Aeroplanes AD/CIRRUS/6 Brake Caliper Piston O-Ring Seals 13/2006

Applicability: Cirrus Design Corporation Model SR20 and SR 22 aeroplanes in the following groups:

Group 1: Model SR20 Aeroplanes, S/N 1005 through 1600.

Group 2: Model SR22 Aeroplanes, S/N 0002 through 1739.

Group 3: Model SR20 Aeroplanes, S/N 1005 through 1592.

Group 4: Model SR22 Aeroplanes, S/N 0002 through 1727. Requirement: 1. For Group 1 and Group 2 aeroplanes:

Check the maintenance records to determine whether the brake caliper piston O-ring seals were replaced at the last annual or 100-hour inspection.

2. For Group 1 and Group 2 aeroplanes:

As a result of the check required by Requirement 1 of this AD, if it is found that there is no record of the replacement of brake caliper piston O-ring seals at the last annual or 100-hour inspection, then do the following:

a. Replace the O-ring seals with new O-ring seals; or

b. Replace old brake calipers with new brake callipers in accordance with Cirrus Design Corporation Service Bulletin SB 2X-32-13R1 dated 16 May 2006 or later FAA approved revision.