21.A.3B Airworthiness directives
Regulation
(EU) No 748/2012
(a) An airworthiness directive means a
document issued or adopted by the Agency which mandates actions to be
performed on an aircraft to restore an acceptable level of safety, when
evidence shows that the safety level of this aircraft may otherwise be
compromised.
(b) The Agency shall issue an airworthiness
directive when:
1. an unsafe condition has been determined
by the Agency to exist in an aircraft, as a result of a deficiency in the
aircraft, or an engine, propeller, part or appliance installed on this
aircraft; and
2. that condition is likely to exist or
develop in other aircraft.
(c) When an airworthiness directive has to be
issued by the agency to correct the unsafe condition referred to in point (b),
or to require the performance of an inspection, the holder of the
type-certificate, restricted type-certificate, supplemental type-certificate,
major repair design approval, ETSO authorisation or any other relevant
approval deemed to have been issued under this Regulation, shall:
1. propose the appropriate corrective
action or required inspections, or both, and submit details of these proposals
to the Agency for approval;
2. following the approval by the Agency of
the proposals referred to under point (1), make available to all known
operators or owners of the product, part or appliance and, on request, to any
person required to comply with the airworthiness directive, appropriate
descriptive data and accomplishment instructions.
(d) An airworthiness directive shall contain
at least the following information:
1. an identification of the unsafe
condition;
2. an identification of the affected
aircraft;
3. the action(s) required;
4. the compliance time for the required
action(s);
5. the date of entry into force.