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specifically address or require certification by the foreign civil airworthiness authority of the country of manufacture, such certification
is the only practical way for an applicant to show, and the FAA to find conformity to the FAA-approved type design and condition for
safe operation. Additional guidance is contained in FAA Advisory Circular (AC) 21-23, Airworthiness Certification of Civil Aircraft,
Engines, Propellers, and Related Products Imported into the United States.
FAA Required Modification List for Airbus Model A330 Aircraft:
Prior to issuance of a Standard Airworthiness Certificate on any Airbus A330 model aircraft, all modifications shown on the (Model
A330) Required Modification List (RML) with compliance times already past, must be accomplished before the aircraft can be found to
be in a condition for safe operation.
Note 1: RML modifications with compliance times already past means that relative to the date of issuance of an Airworthiness
Certificate for an individual aircraft, the compliance time of the RML item in calendar time and/or flight hours and/or flight cycles has
been exceeded.
All future required modifications shown on the RML must be incorporated into the operator’s maintenance or inspection program prior
to placement of the aircraft into operation [just as for future airworthiness limitations listed in the Airworthiness Limitation Section
(ALS)]. These future RML modifications must be incorporated prior to the compliance time specified in the RML and must remain with
the airplane records. In the event of any transfer of the airplane to another operator these RML requirements must continue to be
complied with and incorporated into the new operator’s maintenance program.
Note 2: Future RML modifications means that relative to the date of issuance of an Airworthiness Certificate for an individual aircraft,
the compliance time of the RML item in calendar time and/or flight hours and/or flight cycles has not yet been exceeded.
A46NM Revision 10 14 March 19, 2007
Prior to issuance of a Standard Airworthiness Certificate on any Airbus A330 model aircraft, the following note must be placed on the
Airworthiness Certificate:
“CONTINUED AIRWORTHINESS: Type Certificate Data Sheet (TCDS) A46NM, Revision 4, dated March 21, 2000, contains the
“FAA Required Modification List (RML)” that must be complied with for this aircraft to remain in a condition for safe operation.
The RML is part of the permanent record for this aircraft; it must remain with the aircraft data and continue to be complied with in
the event of transfer to another operator.”
Note 3: The RML was finalized through its publication in TCDS Revision 4 and requirements will not be added by later TCDS
revisions. Therefore, the RML in TCDS A46NM Revision 4 or any later TCDS revision are equivalent and acceptable for compliance.
All future modifications that the FAA determines must be accomplished on U.S. registered aircraft will be addressed by issuance of an
Airworthiness Directive (AD).
Authority for these required modifications is given per the airworthiness certification provisions of 49 U.S.C. 44704 (c), which states
"the Administrator may include in an airworthiness certificate terms required in the interest of safety". “Terms required in the interest of
safety” include actions to correct unsafe conditions issued by the foreign authority of the state of design that also meet FAA criteria for
corrective action. This law also gives the FAA the authority to adopt FAR § 21.183(c) and (d), which form the regulatory basis for the
issue of standard U.S. airworthiness certificates on imported products. 14 CFR §21.183(c) and (d) provide that airworthiness certificates
are issued only if the Administrator finds “that the aircraft conforms to the type design and is in a condition for safe operation.” The
modifications identified in the list below are required in the interest of safety and are necessary for this airplane to be in a condition for
safe operation.
A Notice of Policy Statement announcing the FAA’s policy with respect to foreign mandatory continued airworthiness information,
when no aircraft of the affected design are currently operating in the U.S. was published in the Federal Register on May 11, 1998
Alternative Methods of Compliance to an RML modification:
For each RML modification, an alternative method of compliance (AMOC) or adjustment of the compliance time may be used if
approved by the Manager, International Branch, ANM-116, FAA Transport Airplane Directorate; 1601 Lind Avenue Southwest; Renton,
Washington 98055; telephone (425) 227-1263; fax (425) 227-1149. Operators shall submit their request through an appropriate FAA
Principle Maintenance Inspector, who may add comments and then send it to the Manager, International Branch.
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