AD/CESSNA 185/49 - Alternate Static Air Source Valve (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.

Cessna 185 Series Aeroplanes AD/CESSNA 185/49 Alternate Static Air Source Valve 7/2008 TX

Applicability: Aeroplanes models listed in Table 1 that have an alternate static air source selector valve, part number (P/N) 2013142-18, installed after 19 November 2007. Table 1 - Applicability for Aeroplanes that Could Have Had the Affected Part Installed as a Replacement Part or From Parts Held as Spares Model Serial Numbers (S/N) 185 All S/Ns Note 1: P/N 2013142-18 replaced P/Ns 2013142-9, -13 and -17. Requirement: 1. For aeroplanes listed in Table 1 - Either: a. Inspect the alternate static air source selector valve in accordance with Requirement 3, or b. Inspect the aeroplane's maintenance records to determine if the alternate static air source selector valve has been replaced since 19 November 2007 with P/N 2013142-18, if the valve has not been replaced no further action is necessary. Note 2: The Requirement 1.b. inspection and determination may be accomplished and certified for by the aeroplane operator, provided that they hold at least a private pilot's licence. 2. If the Requirement 1.b. determination indicates that a P/N 2013142-18 alternate static air source selector valve has been installed inspect the valve in accordance with Requirement 3. 3. Inspect the alternate static air source selector valve to assure that the part number identification placard is not obstructing the port as follows: a. Adjust the pilot and copilot seats as far aft as possible.