[Federal Register Volume 71, Number 94 (Tuesday, May 16, 2006)]
[Rules and Regulations]
[Pages 28257-28259]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 06-4501]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-24118; Directorate Identifier 2006-NM-034-AD; 
Amendment 39-14594; AD 2006-10-10]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model BD-100-1A10 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 BD-100-1A10 airplanes. This AD requires an 
inspection for signs of arcing or heat damage of the electrical 
connections of the terminal blocks, ground studs, and the end of the 
wires and surrounding insulation for the windshield and side window 
anti-ice systems; and repairing any arced or damaged electrical 
connection. This AD also requires re-torquing electrical connections of 
the terminal blocks and ground studs for the windshield and side window 
anti-ice systems. This AD results from an in-service incident involving 
smoke and odor in the cockpit. We are issuing this AD to prevent loose 
electrical connections that could arc and overheat, and cause wiring 
damage of the windshield and side window anti-ice systems. Such wiring 
damage could result in smoke and/or fire in the flight compartment.

DATES: This AD becomes effective June 20, 2006.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of June 20, 
2006.

ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov or in person at the Docket Management Facility, U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif Building, 
Room PL-401, Washington, DC.
    Contact Bombardier, Inc., Bombardier Regional Aircraft Division, 
123 Garratt Boulevard, Downsview, Ontario M3K

[[Page 28258]]

1Y5, Canada, for service information identified in this AD.

FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer, Systems 
and Flight Test Branch, ANE-172, New York Aircraft Certification 
Office, FAA, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; 
telephone (516) 228-7311; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the airworthiness directive (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 street address stated in the ADDRESSES section.

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to include an AD that would apply to certain Bombardier 
Model BD-100-1A10 airplanes. That NPRM was published in the Federal 
Register on March 14, 2006 (71 FR 13053). That NPRM proposed to require 
an inspection for signs of arcing or heat damage of the electrical 
connections of the terminal blocks, ground studs, and the end of the 
wires and surrounding insulation for the windshield and side window 
anti-ice systems; and repairing any arced or damaged electrical 
connection. That NPRM proposed to also require re-torquing electrical 
connections of the terminal blocks and ground studs for the windshield 
and side window anti-ice systems.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We received no comments on the NPRM or on the 
determination of the cost to the public.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed.

Costs of Compliance

    This AD will affect about 31 airplanes of U.S. registry. The 
required actions will take about 4 work hours per airplane, at an 
average labor rate of $80 per work hour. Based on these figures, the 
estimated cost of this AD for U.S. operators is $9,920, or $320 per 
airplane.

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, 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 and placed it in the AD docket. 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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

2006-10-10 Bombardier, Inc.: Amendment 39-14594. Docket No. FAA-
2006-24118; Directorate Identifier 2006-NM-034-AD.

Effective Date

    (a) This AD becomes effective June 20, 2006.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Bombardier Model BD-100-1A10 airplanes, 
serial numbers 20006 through 20046 inclusive, 20048, 20051, and 
20052; certificated in any category.

Unsafe Condition

    (d) This AD results from an in-service incident involving smoke 
and odor in the cockpit. We are issuing this AD to prevent loose 
electrical connections that could arc and overheat, and cause wiring 
damage of the windshield and side window anti-ice systems. Such 
wiring damage could result in smoke and/or fire in the flight 
compartment.

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.

Inspection, Repair, and Re-Torque

    (f) Within 90 days after the effective date of this AD, do the 
actions specified in paragraphs (f)(1) and (f)(2) of this AD in 
accordance with the Accomplishment Instructions of Bombardier Alert 
Service Bulletin A100-30-03, Revision 01, dated December 21, 2005.
    (1) Do a detailed inspection for signs of arcing or heat damage 
of the electrical connections of the terminal blocks, ground studs, 
and the end of the wires and surrounding insulation for the 
windshield and side window anti-ice systems. If any sign of arcing 
or heat damage is detected, before further flight, repair the arced 
or damaged electrical connection.

    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 
mirror, magnifying lenses, etc., may be necessary. Surface cleaning 
and elaborate procedures may be required.''

    (2) Re-torque the electrical connections of the terminal blocks 
and ground studs for the windshield and side window anti-ice 
systems.

[[Page 28259]]

Alternative Methods of Compliance (AMOCs)

    (g)(1) 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.
    (2) Before using any AMOC approved in accordance with Sec.  
39.19 on any airplane to which the AMOC applies, notify the 
appropriate principal inspector in the FAA Flight Standards 
Certificate Holding District Office.

Related Information

    (h) Canadian airworthiness directive CF-2006-01, dated January 
20, 2006, also addresses the subject of this AD.

Material Incorporated by Reference

    (i) You must use Bombardier Alert Service Bulletin A100-30-03, 
Revision 01, dated December 21, 2005, to perform the actions that 
are required by this AD, unless the AD specifies otherwise. The 
Director of the Federal Register approved the incorporation by 
reference of this document in accordance with 5 U.S.C. 552(a) and 1 
CFR part 51. Contact Bombardier, Inc., Bombardier Regional Aircraft 
Division, 123 Garratt Boulevard, Downsview, Ontario M3K 1Y5, Canada, 
for a copy of this service information. You may review copies at the 
Docket Management Facility, U.S. Department of Transportation, 400 
Seventh Street, SW., Room PL-401, Nassif Building, Washington, DC; 
on the Internet at http://dms.dot.gov; or at the National Archives 
and Records Administration (NARA). For information on the 
availability of this material at the NARA, call (202) 741-6030, or 
go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on May 8, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 06-4501 Filed 5-15-06; 8:45 am]
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