COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 550 (Citation II) Series Aeroplanes
AD/CESSNA 550/11 TKS Proportioning Unit Connections 5/86
Applicability: Model S550 unit numbers - 0001 through - 0048, -0051 through - 0075, and - 0077 and - 0079.
Requirement: Action in accordance with Cessna Citation Alert Service Letter SLAS 550-30-05. Compliance: Before issue of a certificate of airworthiness.
Background: The manufacturer has identified the possible incorrect installation of TKS proportioning unit plumbing.