SUMMARY: We are revising an existing 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:
Inspection of a high time aircraft has revealed cracks in the Horizontal Stabilizer rear spar splice plate and inboard main ribs around the area of the Horizontal Stabilizer rear pivot attachment. Additionally, failure of some attach bolts in service may be due to improper assembly.
For More Information:
Please visit the FAA's website to view the entire Airworthiness Directive.