Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes

[Federal Register Volume 70, Number 31 (Wednesday, February 16, 2005)]
[Rules and Regulations]
[Pages 7845-7847]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-2580]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-19763; Directorate Identifier 2004-NM-187-AD; 
Amendment 39-13969; AD 2005-03-13]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440) Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) 
airplanes. This AD requires doing repetitive inspections for fractures 
and cracks of the links of the aileron power control unit (PCU); 
replacing any fractured/cracked link; and doing applicable related 
investigative and corrective actions, if necessary. This AD is prompted 
by reports indicating that the links of the aileron PCU have failed. We 
are issuing this AD to prevent failure of both links of the aileron 
PCU, which could result in reduced lateral control of the airplane.

DATES: This AD becomes effective March 23, 2005.
    The incorporation by reference of a certain publication listed in 
the AD is approved by the Director of the Federal Register as of March 
23, 2005.

ADDRESSES: For service information identified in this AD, contact 
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station 
Centre-ville, Montreal, Quebec H3C 3G9, Canada. You can examine this 
information at the National Archives and Records Administration (NARA). 
For information on the availability of this material at NARA, call 
(202) 741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
    Docket: The AD docket contains the proposed AD, comments, and any 
final disposition. You can examine the AD docket on the Internet at 
http://dms.dot.gov, or in person at the Docket Management Facility 
office between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the U.S. 
Department of Transportation, 400 Seventh Street SW., room PL-401, 
Washington, DC. This docket number is FAA-2004-19763; the directorate 
identifier for this docket is 2004-NM-187-AD.

FOR FURTHER INFORMATION CONTACT: Dan Parrillo, Aerospace Engineer, 
Systems and Flight Test Branch, ANE-172, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Westbury, suite 410, New 
York 11590; telephone (516) 228-7305; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 
with an AD for certain Bombardier Model CL-600-2B19 (Regional Jet 
Series 100 & 440) airplanes. That action, published in the Federal 
Register on December 7, 2004 (69 FR 70571), proposed to require doing 
repetitive inspections for fractures and cracks of the links of the 
aileron power control unit (PCU); replacing any fractured/cracked link; 
and doing applicable related investigative and corrective actions, if 
necessary.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We have considered the one comment that was 
submitted on the proposed AD. The commenter supports the proposed AD.

Conclusion

    We have carefully reviewed the available data, including the 
comment that has been submitted, and determined that air safety and the 
public interest require adopting the AD as proposed.

Interim Action

    This is considered to be interim action until final action is 
identified, at which time we may consider further rulemaking.

Costs of Compliance

    This AD will affect about 697 airplanes of U.S. registry. The 
required inspection will take about 1 work hour per airplane, at an 
average labor rate of $65 per work hour. Based on these figures, the 
estimated cost of the AD for U.S. operators is $45,305, or $65 per 
airplane, per inspection cycle.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII,

[[Page 7846]]

Aviation Programs, describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
subtitle VII, part A, subpart III, section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD will 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.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866;
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and
    (3) 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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD. See the ADDRESSES section for a location to 
examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2005-03-13 Bombardier, Inc. (Formerly Canadair): Amendment 39-13969. 
Docket No. FAA-2004-19763; Directorate Identifier 2004-NM-187-AD.

Effective Date

    (a) This AD becomes effective March 23, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440) airplanes, serial numbers 7003 and subsequent; 
certificated in any category.

Unsafe Condition

    (d) This AD was prompted by reports indicating that the links of 
the aileron power control unit (PCU) have failed. We are issuing 
this AD to prevent failure of both links of the aileron PCU, which 
could result in reduced lateral control of the airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Repetitive Inspections

    (f) Before the accumulation of 2,000 total flight hours, or 
within 550 flight hours after the effective date of this AD, 
whichever occurs later, do a detailed inspection for fractures and 
cracks of the links of the aileron PCU, in accordance with Part A of 
the Accomplishment Instructions of Bombardier Alert Service Bulletin 
A601R-27-130, Revision ``B,'' including Appendices A and B, dated 
May 11, 2004. Repeat the detailed inspection thereafter at intervals 
not to exceed 1,000 flight hours.

    Note 1: For the purposes of this AD, a detailed inspection is 
``an intensive examination of a specific item, installation, or 
assembly to detect damage, failure, or irregularity. Available 
lighting is normally supplemented with a direct source of good 
lighting at an intensity deemed appropriate. Inspection aids such as 
mirrors magnifying lenses, etc. may be necessary. Surface cleaning 
and elaborate procedures may be required.''

Corrective Action

    (g) If any fractured or cracked link is detected during any 
inspection required by paragraph (f) of this AD, before further 
flight, replace the fractured/cracked link and do the applicable 
related investigative and corrective actions by doing all the 
actions in accordance with Part B of the Accomplishment Instructions 
of Bombardier Alert Service Bulletin A601R-27-130, Revision ``B,'' 
including Appendices A and B, dated May 11, 2004; except as required 
by paragraph (h) of this AD.
    (h) If any crack is found on the aileron lugs during any related 
investigative action required by paragraph (g) of this AD, and the 
service bulletin recommends contacting Bombardier for disposition: 
Before further flight, disposition and replace the cracked aileron 
lug in accordance with a method approved by the Manager, New York 
Aircraft Certification Office (ACO), FAA, or Transport Canada Civil 
Aviation (TCCA) (or its delegated agent).

Acceptable Revisions of the Referenced Service Bulletin

    (i) Actions specified in paragraphs (f) and (g) of this AD done 
before the effective date of this AD in accordance with Bombardier 
Alert Service Bulletin A601R-27-130, Revision ``A,'' including 
Appendices A and B, dated December 22, 2003; are acceptable for 
compliance with the corresponding requirements of paragraphs (f) and 
(g) of this AD.
    (j) Accomplishment of the initial inspection of the links of the 
aileron PCU, and replacement if necessary, before the effective date 
of this AD in accordance with Bombardier Alert Service Bulletin 
A601R-27-130, including Appendices A and B, dated November 13, 2003, 
is acceptable for compliance with the corresponding requirements of 
paragraphs (f) and (g) of this AD; except as provided by paragraph 
(k) of this AD.
    (k) Airplanes on which a fractured or cracked link of the 
aileron PCU was found that were not subject to an NDT inspection of 
the aileron lugs (i.e., related investigative action required by 
paragraph (h) of this AD) before the effective date of this AD must 
do an NDT inspection of the applicable lugs in accordance with 
paragraph (g) of this AD at the next repetitive detailed inspection 
of the link of the aileron PCU required by this AD.

Reporting

    (l) Submit a report of the findings (both positive and negative) 
of the initial inspection required by paragraph (f) of this AD and 
any associated fractured or cracked link to Bombardier Aerospace 
Inc., c/o In-Service Engineering, 3rd floor, Dept. 508, 400 Cote 
Vertu Road West, Dorval, QC, Canada H4S 1Y9, at the applicable time 
specified in paragraph (l)(1) or (l)(2) of this AD. The report must 
be done in accordance with Appendices A and B of Bombardier Alert 
Service Bulletin A601R-27-130, Revision `B,' dated May 11, 2004. 
Under the provisions of the Paperwork Reduction Act of 1980 (44 
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has 
approved the information collection requirements contained in this 
AD and has assigned OMB Control Number 2120-0056.
    (1) If the inspection was done after the effective date of this 
AD: Submit the report and any fractured/cracked link within 30 days 
after the inspection.
    (2) If the inspection was accomplished prior to the effective 
date of this AD: Submit the report and any fractured/cracked link 
within 30 days after the effective date of this AD.

No Submission of Comment Sheets

    (m) Although the service bulletin referenced in this AD 
specifies to submit comment and compliance sheets to the 
manufacturer, this AD does not include that requirement.

[[Page 7847]]

Alternative Methods of Compliance (AMOCs)

    (n) The Manager, New York Aircraft Certification Office, FAA, 
has the authority to approve AMOCs for this AD, if requested in 
accordance with the procedures found in 14 CFR 39.19.

Related Information

    (o) Canadian airworthiness directive CF-2004-13, dated July 20, 
2004, also addresses the subject of this AD.

Material Incorporated by Reference

    (p) You must use Bombardier Alert Service Bulletin A601R-27-130, 
Revision `B,' including Appendices A and B, dated May 11, 2004, to 
perform the actions that are required by this AD, unless the AD 
specifies otherwise. The Director of the Federal Register approves 
the incorporation by reference of this document in accordance with 5 
U.S.C. 552(a) and 1 CFR part 51. For copies of the service 
information, contact Bombardier, Inc., Canadair, Aerospace Group, 
P.O. Box 6087, Station Centre-ville, Montreal, Quebec H3C 3G9, 
Canada. For information on the availability of this material at the 
National Archives and Records Administration (NARA), call (202) 741-
6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. You may view the AD docket 
at the Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street SW., room PL-401, Nassif 
Building, Washington, DC.

    Issued in Renton, Washington, on January 31, 2005.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-2580 Filed 2-15-05; 8:45 am]
BILLING CODE 4910-13-P

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