AD NUMBER: AD 200825-04
SUBJECT: Airworthiness Directive 2008-25-04 SUMMARY: We are adopting a
new airworthiness directive (AD) for the products listed above.
This 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
The MCAI describes the unsafe condition as: [S]ome aircraft
could have experienced wing overpressure consecutive to the latent
failure of both [pressure relief] valve units.
Overpressure although not sufficient to cause static damages
could have impaired the fatigue damage tolerance of the wing
We are issuing this AD to require actions to correct the unsafe
condition on these products.