**FAA AD 2007-09-06 CAP10 Wing
Airworthiness Directives: APEX Aircraft (Type Certificate No. A36EU Formerly Held by AVIONS MUDRY et CIE) Model CAP 10 B Airplanes
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 the aviation
authority of another country to identify and correct an unsafe condition on an aviation product. The
MCAI describes the unsafe condition as
Several recent inspections have revealed that some spar wooden center blocks have shown cracks. Investigation revealed that cracks are generated by the wood drying. Actions specified in this AD are intended to detect and correct any defects on the central wing spar block.
This
AD requires actions that are intended to address the unsafe condition described in the
MCAI.
Discussion
The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member
States of the European Community, has issued AD No. 2007-0015, dated January 12, 2007 (referred
to after this as ''the MCAI''), to correct an unsafe condition for the specified products.
The MCAI states:
Several recent inspections have revealed that some spar wooden centre blocks have shown
cracks. Investigation revealed that cracks are generated by the wood drying. Actions specified in this
AD are intended to detect and correct any defects on the central wing spar block.
This AD is requiring the installation of two reinforcement plates on the wing spar to counter the
shear loading, implementation of corrective actions to slow down the wood drying and is also introducing new repetitive inspections.
Thanks go out to IAC member Terry Carraway., who pointed out that a previous article titled "**The Shaw Letter" incorrectly referred to a document that no longer exists. That article has been removed.
The AD is attached below.
