[Federal Register Volume 69, Number 17 (Tuesday, January 27, 2004)]
[Proposed Rules]
[Pages 3863-3865]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-1659]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2003-NM-66-AD]
RIN 2120-AA64


Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. 
(EMBRAER) Model EMB-145 Series Airplanes

AGENCY: Federal Aviation Administration, DOT.

[[Page 3864]]


ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: This document proposes the adoption of a new airworthiness 
directive (AD) that is applicable to certain EMBRAER Model EMB-145 
series airplanes. This proposal would require modifying the strap 
configuration of IC-600 1 and 2 integrated computers 
to disable CAT II operations with the flight director. Enabling of CAT 
II operations with the flight director is not yet approved and could 
cause the flightcrew to receive hazardously misleading guidance 
information, which, in the event of a high-workload landing, could 
result in reduced controllability of the airplane. This action is 
intended to address the identified unsafe condition.

DATES: Comments must be received by February 26, 2004.

ADDRESSES: Submit comments in triplicate to the Federal Aviation 
Administration (FAA), Transport Airplane Directorate, ANM-114, 
Attention: Rules Docket No. 2003-NM-66-AD, 1601 Lind Avenue, SW., 
Renton, Washington 98055-4056. Comments may be inspected at this 
location between 9 a.m. and 3 p.m., Monday through Friday, except 
Federal holidays. Comments may be submitted via fax to (425) 227-1232. 
Comments may also be sent via the Internet using the following address: 
[email protected]. Comments sent via fax or the Internet must 
contain ``Docket No. 2003-NM-66-AD'' in the subject line and need not 
be submitted in triplicate. Comments sent via the Internet as attached 
electronic files must be formatted in Microsoft Word 97 or 2000 or 
ASCII text.
    The service information referenced in the proposed rule may be 
obtained from Empresa Brasileira de Aeronautica S.A. (EMBRAER), P.O. 
Box 343--CEP 12.225, Sao Jose dos Campos--SP, Brazil. This information 
may be examined at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue, SW., Renton, Washington.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    Interested persons are invited to participate in the making of the 
proposed rule by submitting such written data, views, or arguments as 
they may desire. Communications shall identify the Rules Docket number 
and be submitted in triplicate to the address specified above. All 
communications received on or before the closing date for comments, 
specified above, will be considered before taking action on the 
proposed rule. The proposals contained in this action may be changed in 
light of the comments received.
    Submit comments using the following format:
     Organize comments issue-by-issue. For example, 
discuss a request to change the compliance time and a request to change 
the service bulletin reference as two separate issues.
     For each issue, state what specific change to 
the proposed AD is being requested.
     Include justification (e.g., reasons or data) 
for each request.
    Comments are specifically invited on the overall regulatory, 
economic, environmental, and energy aspects of the proposed rule. All 
comments submitted will be available, both before and after the closing 
date for comments, in the Rules Docket for examination by interested 
persons. A report summarizing each FAA-public contact concerned with 
the substance of this proposal will be filed in the Rules Docket.
    Commenters wishing the FAA to acknowledge receipt of their comments 
submitted in response to this action must submit a self-addressed, 
stamped postcard on which the following statement is made: ``Comments 
to Docket Number 2003-NM-66-AD.'' The postcard will be date stamped and 
returned to the commenter.

Availability of NPRMs

    Any person may obtain a copy of this NPRM by submitting a request 
to the FAA, Transport Airplane Directorate, ANM-114, Attention: Rules 
Docket No. 2003-NM-66-AD, 1601 Lind Avenue, SW., Renton, Washington 
98055-4056.

Discussion

    The Departmento de Aviacao Civil (DAC), which is the airworthiness 
authority for Brazil, notified the FAA that an unsafe condition may 
exist on certain EMBRAER Model EMB-145 series airplanes. The DAC 
advises that IC-600 integrated computers equipped with certain Engine 
Indication and Crew Alerting System (EICAS) software versions, not 
configured through configuration module IM-600, enable CAT II 
operations with the flight director. This combination is not approved. 
This condition, if not corrected, could cause the flightcrew to receive 
hazardously misleading guidance information, which, in the event of a 
high-workload landing, could result in reduced controllability of the 
airplane.

Explanation of Relevant Service Information

    EMBRAER has issued Service Bulletins 145-31-0022, Change 05, and 
145-31-0030, both dated January 22, 2002, which describe procedures for 
modifying the strap configuration of IC-600 1 and 2 
integrated computers to disable CAT II operations with the flight 
director. Service Bulletin 145-31-0022, Change 05, applies to airplanes 
equipped with EICAS software version 16.5, while 145-31-0030 applies to 
airplanes equipped with EICAS software version 17. Accomplishment of 
the actions specified in the applicable service bulletin is intended to 
adequately address the identified unsafe condition. The DAC classified 
these service bulletins as mandatory and issued Brazilian airworthiness 
directive 2000-10-02R2, dated February 22, 2002, to ensure the 
continued airworthiness of these airplanes in Brazil.

FAA's Conclusions

    This airplane model is manufactured in Brazil and is type 
certificated for operation in the United States under the provisions of 
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and 
the applicable bilateral airworthiness agreement. Pursuant to this 
bilateral airworthiness agreement, the DAC has kept the FAA informed of 
the situation described above. The FAA has examined the findings of the 
DAC, reviewed all available information, and determined that AD action 
is necessary for products of this type design that are certificated for 
operation in the United States.

Explanation of Requirements of Proposed Rule

    Since an unsafe condition has been identified that is likely to 
exist or develop on other airplanes of the same type design registered 
in the United States, the proposed AD would require accomplishment of 
the actions specified in the applicable service bulletin described 
previously.

Cost Impact

    The FAA estimates that 251 airplanes of U.S. registry would be 
affected by this proposed AD, that it would take approximately 2 work 
hours per airplane to accomplish the proposed actions, and that the 
average labor rate is $65 per work hour. The cost of required parts 
would be negligible.

[[Page 3865]]

Based on these figures, the cost impact of the proposed AD on U.S. 
operators is estimated to be $32,630, or $130 per airplane.
    The cost impact figure discussed above is based on assumptions that 
no operator has yet accomplished any of the proposed requirements of 
this AD action, and that no operator would accomplish those actions in 
the future if this AD were not adopted. The cost impact figures 
discussed in AD rulemaking actions represent only the time necessary to 
perform the specific actions actually required by the AD. These figures 
typically do not include incidental costs, such as the time required to 
gain access and close up, planning time, or time necessitated by other 
administrative actions.

Regulatory Impact

    The regulations proposed herein would not have a substantial direct 
effect on the States, on the relationship between the national 
Government and the States, or on the distribution of power and 
responsibilities among the various levels of government. Therefore, it 
is determined that this proposal would not have federalism implications 
under Executive Order 13132.
    For the reasons discussed above, I certify that this proposed 
regulation (1) is not a ``significant regulatory action'' under 
Executive Order 12866; (2) is not a ``significant rule'' under the DOT 
Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 
and (3) if promulgated, will not have a significant economic impact, 
positive or negative, on a substantial number of small entities under 
the criteria of the Regulatory Flexibility Act. A copy of the draft 
regulatory evaluation prepared for this action is contained in the 
Rules Docket. A copy of it may be obtained by contacting the Rules 
Docket at the location provided under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the Federal Aviation Administration proposes to amend 
part 39 of the Federal Aviation Regulations (14 CFR part 39) as 
follows:

PART 39--AIRWORTHINESS DIRECTIVES

    1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec. 39.13  [Amended]

    2. Section 39.13 is amended by adding the following new 
airworthiness directive:

Empresa Brasileira de Aeronautica S.A. (EMBRAER): Docket 2003-NM-66-
AD.

    Applicability: Model EMB-145 series airplanes, certificated in 
any category; as listed in EMBRAER Service Bulletin 145-31-0022, 
Change 05; or 145-31-0030; both dated January 22, 2002.
    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent enabling of CAT II operations with the flight 
director, which could cause the flight crew to receive hazardously 
misleading guidance information, and, in the event of a high-
workload landing, could result in reduced controllability of the 
airplane, accomplish the following:

Modification

    (a) Within 400 flight hours after the effective date of this AD: 
Modify the strap configuration of IC-600 1 and 2 
integrated computers to disable CAT II operations with the flight 
director, per the Accomplishment Instructions of EMBRAER Service 
Bulletin 145-31-0022, Change 05 (for airplanes equipped with EICAS 
software version 16.5); or 145-31-0030 (for airplanes equipped with 
EICAS software version 17); both dated January 22, 2002; as 
applicable.

Actions Accomplished Per Earlier Revisions of Service Bulletin

    (b) Actions accomplished before the effective date of this AD 
per the Accomplishment Instructions of EMBRAER Service Bulletin 145-
31-0022, dated August 29, 2000; Change 01, dated January 8, 2001; 
Change 02, dated March 14, 2001; Change 03, dated March 22, 2001; or 
Change 04, dated April 10, 2001; are acceptable for compliance with 
the corresponding actions required by paragraph (a) of this AD.

Parts Installation

    (c) As of the effective date of this AD, no one may install an 
IC-600 1 or 2 integrated computer equipped with 
EICAS software version 16.5 or 17, unless paragraph (a) of this AD 
has been accomplished.

Alternative Methods of Compliance

    (d) In accordance with 14 CFR 39.19, the Manager, International 
Branch, ANM-116, Transport Airplane Directorate, FAA, is authorized 
to approve alternative methods of compliance for this AD.

    Note 1: The subject of this AD is addressed in Brazilian 
airworthiness directive 2000-10-02R2, dated February 22, 2002.


    Issued in Renton, Washington, on January 16, 2004.
Ali Bahrami,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-1659 Filed 1-26-04; 8:45 am]
BILLING CODE 4910-13-P