New Diamond AD

Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0125 Directorate Identifier 2009-CE-002-AD; Amendment 39-15873;
AD 2009-07-14]
RIN 2120-AA64
Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 40 and DA 40F
AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).
ACTION: Final Rule.
SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This
AD results from mandatory continuing airworthiness information (MCAI) issued 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 number of wings manufactured by Diamond Aircraft Industries Inc. in Canada have
been found to exhibit voids in the adhesive joint between the main spar caps and the
upper wing skins. The available information indicates that wings with voids continue to
meet the certification design limits, provided the voids are within established criteria.
However, to detect any wings that may have voids exceeding these criteria, Diamond has
issued Mandatory Service Bulletin MSB-40-060 and MSB-F4-016 (single document) that
describes instructions for inspection of the aircraft that had these wings installed during
manufacture. Aircraft that have voids within the inspection criteria may continue to
operate without restriction, pending the outcome of ongoing investigations. Aircraft that
have voids exceeding the inspection criteria must be repaired.
We are issuing this AD to require actions to correct the unsafe condition on these products.
DATES: This AD becomes effective May 11, 2009.
On May 11, 2009, the Director of the Federal Register approved the incorporation by reference
of certain publications listed in this AD