AD NUMBER: 2008-22-15
SUBJECT: Airworthiness Directive 2008-22-15 SUMMARY: We are superseding an existing 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 product.
The MCAI describes the unsafe condition as: Investigations after
a CAS (crew alerting system) message "ENG 1 FIRE DETECT FAIL" that
occurred on an in-service aircraft revealed that the detector
threshold tolerances could not permit to identify the failure of
one single engine firedetector loop out of the two present on each
engine. The fire detection system integrity istherefore not
correctly monitored. * * * * *
We are issuing this AD to require actions to correct the unsafe
condition on these products.