CASA has provided an extension to the deadline for the completion of Cessna Supplemental Inspection Documents—or SIDs—on two groups of aircraft.The extension applies to Cessna 100 series aircraft used in charter and aerial work and Cessna 200 series aircraft used in private operations. SIDs compliance dates for both these operational categories have been extended by three months to 31 March 2016. The original CASA compliance date was 31 December 2015
The deadline for the completion of SIDS inspections for private category Cessna 100 series aircraft remains 30 June 2016.SIDs inspections were developed jointly by Cessna and the United States Federal Aviation Administration (FAA) due to concerns relating to potential corrosion and fatigue damage to principal structural elements of the aircraft.
The SIDs program, which complements existing scheduled maintenance, requires the additional detailed inspection of a range of structures including wing spars, wing attachment points, wing struts attachments as well as horizontal and vertical stabiliser attachment points.