Airworthiness directives – potential alternate air static source selector valve obstruction
CASA has issued a series of airworthiness directives covering particular Cessna aircraft models that have been either manufactured since 19 November 2007 or have had an alternate static air source selector valve installed as a replacement part after 19 November 2007.
CASA has allowed pilots with a private pilot licence to determine whether their aircraft requires an inspection or corrective action by a LAME, based on a maintenance records check
Relevant Cessna aircraft models manufactured before 19 November 2007 or aircraft that have not had an alternate static air source selector valve installed as a replacement part after 19 November 2007 are not affected by this airworthiness directive.
AD/CESSNA 170/83 - Alternate Static Air Source Valve
AD/CESSNA 180/93 - Alternate Static Air Source Valve
AD/CESSNA 185/49 - Alternate Static Air Source Valve
AD/CESSNA 205/24 - Alternate Static Air Source Valve
AD/CESSNA 206/65 - Alternate Static Air Source Valve
AD/CESSNA 207/39 - Alternate Static Air Source Valve
AD/CESSNA 208/22 - Alternate Static Air Source Valve
AD/CESSNA 210/74 - Alternate Static Air Source Valve
AD/CESSNA 303/13 - Alternate Static Air Source Valve
These airworthiness directives become effective before further flight from 12:00am on Tuesday, 13 May 2008.