[Federal Register Volume 66, Number 100 (Wednesday, May 23, 2001)]
[Proposed Rules]
[Pages 28402-28404]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-12988]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 66, No. 100 / Wednesday, May 23, 2001 / 
Proposed Rules

[[Page 28402]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2000-NM-397-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B16 (including 
CL-601-3A and CL-601-3R) Series Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: This document proposes the adoption of a new airworthiness 
directive (AD) that is applicable to certain Bombardier Model CL-600-
2B16 series airplanes. This proposal would require modification of the 
wiring for the internal fuel/defuel panel. This action is necessary to 
prevent the loss of engine and fuel indications essential for safe 
flight and landing. This action is intended to address the identified 
unsafe condition.

DATES: Comments must be received by June 22, 2001.

ADDRESSES: Submit comments in triplicate to the Federal Aviation 
Administration (FAA), Transport Airplane Directorate, ANM-114, 
Attention: Rules Docket No. 2000-NM-397-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: 
<a href="/cdn-cgi/l/email-protection#7a43571b141757140a0817191517171f140e3a1c1b1b541d150c"><span class="__cf_email__" data-cfemail="bc8591ddd2d191d2ccced1dfd3d1d1d9d2c8fcdadddd92dbd3ca">[email protected]</span></a>. Comments sent via fax or the Internet must 
contain ``Docket No. 2000-NM-397-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 for Windows or 
ASCII text.
    The service information referenced in the proposed rule may be 
obtained from Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 
6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada. This 
information may be examined at the FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington; or at the FAA, New York 
Aircraft Certification Office, 10 Fifth Street, Third Floor, Valley 
Stream, New York.

FOR FURTHER INFORMATION CONTACT: James E. Delisio, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 10 Fifth Street, Third Floor, Valley Stream, New 
York 11581; telephone (516) 256-7521; fax (516) 568-2716.

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:
    <bullet> 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.
    <bullet> For each issue, state what specific change to the proposed 
AD is being requested.
    <bullet> 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 No. 2000-NM-397-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. 2000-NM-397-AD, 1601 Lind Avenue, SW., Renton, Washington 
98055-4056.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the airworthiness 
authority for Canada, notified the FAA that an unsafe condition may 
exist on certain Bombardier Model CL-600-2B16 series airplanes. TCCA 
advises of an incident in which the flight crew lost all readouts for 
the engine and fuel quantity systems in the cockpit of an airplane that 
had been modified with an internal fuel/defuel panel. The cockpit 
engine and fuel quantity systems for this configuration are powered 
from a single source, bypassing the dual power source of the original 
installation. During the incident, the fuel/defuel panel was left 
energized following refueling, the circuit breaker for the single power 
source tripped, and the engine and fuel quantity indications were 
subsequently lost and could not be recovered. These conditions, if not 
corrected, could result in the loss of data essential for safe flight 
and landing.

Explanation of Relevant Service Information

    Bombardier has issued Service Bulletin S.B. GEN-28-010, Revision A, 
dated May 15, 2000, which describes procedures for modifying the wiring 
for the internal fuel/defuel panel. Accomplishment of the actions 
specified in the service bulletin is intended to adequately address the 
identified unsafe condition. TCCA classified this service bulletin as 
mandatory and issued Canadian airworthiness directive CF-2000-24, dated 
August 15, 2000, to ensure the continued airworthiness of these 
airplanes in Canada.

[[Page 28403]]

FAA's Conclusions

    These airplane models are manufactured in Canada and are 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, TCCA has kept the FAA informed of 
the situation described above. The FAA has examined the findings of 
TCCA, 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 service bulletin described previously.

Cost Impact

    The FAA estimates that 18 airplanes of U.S. registry would be 
affected by this proposed AD, that it would take approximately 60 work 
hours per airplane to accomplish the proposed actions, and that the 
average labor rate is $60 per work hour. The manufacturer has committed 
previously to its customers that it will bear the cost of labor and 
replacement parts. As a result, those costs are not attributable to 
this proposed AD.
    The cost impact 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 proposed 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:

Bombardier, Inc. (Formerly Canadair): Docket 2000-NM-397-AD.
    Applicability: Model CL-600-2B16 (including CL-601-3A and CL-
601-3R) series airplanes, certificated in any category, as listed in 
the following table:

                                             Table 1.--Applicability
----------------------------------------------------------------------------------------------------------------
                                             Transport Canada Limited
              Serial Number                     Supplemental Type                        FAA STC
                                                Certificate (STC)
----------------------------------------------------------------------------------------------------------------
5064.....................................  SA90-128...................  ST00873NY
5075.....................................  SA91-22....................  SA861NE
5080.....................................  SA91-42....................  SA860NE
5092.....................................  Q-LSA91-52/D...............  SA965NE/ST00470NY
5096.....................................  Q-LSA91-52/D...............  SA965NE
5102.....................................  Q-LSA92-2/D................  ST00364NY
5111.....................................  Q-LSA92-1011/D.............  SA1029NE
5123.....................................  Q-LSA93-1002/D.............  ST00001NY
5125.....................................  Q-LSA93-1007/D.............  No record of FAA STC
5130.....................................  Q-LSA93-1023/D.............  ST00049NY
5139.....................................  Q-LSA94-1002/D.............  ST00086NY
5142.....................................  Q-LSA94-1011/D.............  ST00216NY
5154.....................................  Q-LSA94-1023/D.............  ST00273NY
5156.....................................  Q-LSA94-1025/D.............  ST00423NY
5159.....................................  Q-LSA95-1002/D.............  ST01228NY
5162.....................................  Q-LSA95-1003/D.............  No record of FAA STC
5163.....................................  Q-LSA95-1011/D.............  ST00343NY
5194.....................................  Q-LSA96-1006/D.............  ST00769NY
----------------------------------------------------------------------------------------------------------------


    Note 1: This AD applies to each airplane identified in the 
preceding applicability provision, regardless of whether it has been 
otherwise modified, altered, or repaired in the area subject to the 
requirements of this AD. For airplanes that have been modified, 
altered, or repaired so that the performance of the requirements of 
this AD is affected, the owner/operator must request approval for an 
alternative method of compliance in accordance with paragraph (b) of 
this AD. The request should include an assessment of the effect of 
the modification, alteration, or repair on the unsafe condition 
addressed by this AD; and, if the unsafe condition has not been 
eliminated, the request should include specific proposed actions to 
address it.


[[Page 28404]]


    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent loss of engine and fuel indications essential for 
safe flight and landing, accomplish the following:

Modification

    (a) Within 6 months after the effective date of this AD, modify 
the wiring for the internal fuel/defuel panel, in accordance with 
Bombardier Service Bulletin S.B. GEN-28-010, Revision A, dated May 
15, 2000.

Alternative Methods of Compliance

    (b) An alternative method of compliance or adjustment of the 
compliance time that provides an acceptable level of safety may be 
used if approved by the Manager, New York Aircraft Certification 
Office (ACO), FAA. Operators shall submit their requests through an 
appropriate FAA Principal Maintenance Inspector, who may add 
comments and then send it to the Manager, New York ACO.

    Note 2: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the New York ACO.

Special Flight Permits

    (c) Special flight permits may be issued in accordance with 
sections 21.197 and 21.199 of the Federal Aviation Regulations (14 
CFR 21.197 and 21.199) to operate the airplane to a location where 
the requirements of this AD can be accomplished.

    Note 3: The subject of this AD is addressed in Canadian 
airworthiness directive CF-2000-24, dated August 15, 2000.


    Issued in Renton, Washington, on May 17, 2001.
Vi L. Lipski,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 01-12988 Filed 5-22-01; 8:45 am]
BILLING CODE 4910-13-P


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