SUMMARY: 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 product. The MCAI describes the
unsafe condition as:
An internal review of design data has shown that the web of the
left hand side (LH) stringer 13 near frame 8 might have been
improperly trimmed on a few aircraft.
If not corrected, possible crack initiations could occur in the
upper stringer web, and therefore could impair the structural
strength of the adjacent door stop. This latent failure could
ultimately lead to the loss of redundancy of the door stops,
thereby affecting the structural integrity of the fuselage.