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:
Cases of corrosion findings have been reported on the overwing refueling aperture (used to fill the fuel tank by gravity) on the wing top skin. * * *
* * * * *
This condition, if not corrected, could, in combination with a lightning strike in this area, create a source of ignition in a fuel tank, possibly resulting in a fire or explosion and consequent loss of the aeroplane.
* * * * *
The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.