[Federal Register Volume 66, Number 203 (Friday, October 19, 2001)]
[Notices]
[Pages 53282-53283]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-26461]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Guidance on Instructions for Continued Airworthiness (ICA)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Request for comments on withdrawal of policy memoranda, 
clarification of regulatory intent, and implementation guidance.

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SUMMARY: The FAA invites public comment on its intent to rescind two 
policy memoranda issued in 1982 and 1983 regarding ICA submittals, and 
to clarify that ICA are required for all design approvals applied for 
after January 28, 1981, per Title 14, Code of Federal Regulations 
(CFR), section 21.50(b). Lastly, a six-point implementation plan is 
included.

DATES: Comments must be received by November 19, 2001.

FOR FURTHER INFORMATION CONTACT: Ruth Harder, FAA, Aircraft 
Certification Service, Aircraft Engineering Division, Delegation and 
Airworthiness Programs Branch, AIR-140, ARB Room 304, 6500 S. MacArthur 
Boulevard, Oklahoma City, Oklahoma 73169; telephone: (405) 954-7073; 
fax: (405) 954-4104; e-mail [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites interested parties to comment on this notice. 
Comments should identify the subject, and be submitted to the address 
specified under FOR FURTHER INFORMATION CONTACT. The FAA will consider 
all comments received by the closing date before issuing final 
guidance.

Background

    The FAA Aircraft Certification Service (AIR) has recently had 
several certification projects in which the applicability of the 
requirement to develop Instructions for Continuing Airworthiness (ICA) 
was a matter of contention. The FAA staff wanted clarity as to whether 
14 CFR 21.50(b) requires ICA for supplemental type certificates (STCs) 
for products for which the the original type certificate (TC) was 
applied for before January 28, 1981. The language of 14 CFR 21.50(b) is 
clear, stating, in relevant part:

    The holder of a design approval, including either the type 
certificate or supplemental type certificate for an aircraft, 
aircraft engine, or propeller for which application was made after 
January 28, 1981, shall furnish at least one set of complete 
Instructions for Continued Airworthiness * * *

    Both STCs and amended TCs (ATCs) are design approvals. Under 14 CFR 
21.50(b), all STCs and ATCs for which application was filed after 
January 28, 1981, must provide ICA. This is regardless of the date of 
application for the original TC.
    FAA's AIR predecessor, the Office of Airworthiness, issued 
memoranda dated August 3, 1982 and August 8, 1983. Both stated that:

    14 CFR 21.50(b) applies only to type certification, supplemental 
type certification, and amended type certification projects, whose 
original certification basis includes a requirement for ICA as 
amended on September 11, 1980 (effective January 28, 1981).

    The 1983 memorandum further states that a project to amend 14 CFR 
21.50(b) was initiated to reflect this interpretation. An amendment was 
never issued. These memoranda have sometimes been relied on as a basis 
for not requiring ICA for some STC projects.

FAA Policy

    FAA legal counsel has determined that these memoranda did not 
change the plain meaning of 14 CFR 21.50(b). The 1982 and 1983 
memoranda are hereby rescinded. AIR's policy is to require adherence to 
14 CFR 21.50(b) by submittal of ICA for all design approvals (TC, STC, 
and ATC) for which application is made after January 28, 1981.

[[Page 53283]]

    In response to comments already received from Aircraft 
Certification Offices (ACOs) and Aircraft Evaluation Groups (AEGs), 
points one through six below provide interim guidance in applying this 
requirement. AIR-100 will work with ACOs and AEGs to provide follow-on 
guidance on development and submittal of ICA.
    1. Effective immediately, each applicant for a TC, STC, or ATC must 
submit a complete set of ICA.
    2. Design approvals for STCs and ATCs should not be issued until 
ACO and AEG personnel have accepted the ICA.
    3. The FAA will not address certification projects previously 
approved without ICA at this time. We will not require development of 
ICA for those products unless ACO and AEG personnel determine that ICA 
are necessary to prevent or correct an unsafe condition.
    4. The ICA for an STC or ATC need only address continued 
airworthiness with respect to the design change for which application 
is made, as well as parts or areas of the aircraft affected by the 
design change. We consider such ICA ``complete'' for the purposes of 14 
CFR 21.50(b).
    5. An applicant's submitted assessment of the need for ICA may 
satisfy the ``complete set of ICA.'' If the assessment shows that the 
certification project did not change any information, procedures, 
process, requirements, or limitations in the current ICA, or require 
new ICA, and the FAA concurs, no further ICA development is necessary.
    a. A statement should be placed on the design approval indicating 
that additional ICA change is not required.
    b. For an STC, that statement may be placed under the ``Limitations 
and Conditions'' section.
    6. If previous ICA or maintenance documents do not exist, or were 
developed before January 28, 1981, the ICA submitted for a design 
change should follow the format and contents specified in the 
appropriate airworthiness standards (14 CFR parts 23-35) appendix to 
the extent possible. ACOs and AEGs should give consideration to any 
submittal of ICA containing the essential information to maintain the 
design change in an airworthy condition.
    This guidance does not create any new requirements.

    Issued in Washington, DC, on October 11, 2001.
Thomas E. McSweeny,
Associate Administrator for Regulation and Certification.
[FR Doc. 01-26461 Filed 10-18-01; 8:45 am]
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