Summary
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
A case of loose bond (ungluing) of one mounting wooden block of the control stick base cover, found during the cover reinstallation, was reported to the Type Certificate Holder (TCH) and led to the issuance of the "recommended'' Service Bulletin (SB) No. 031004 in February 2004. Since that date, other similar occurrences have been reported. This SB in its revision 1, has therefore been reclassified "mandatory'' by the TCH.
The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.