
[Federal Register Volume 80, Number 83 (Thursday, April 30, 2015)]
[Rules and Regulations]
[Pages 24198-24200]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-09813]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0074; Directorate Identifier 2014-NM-138-AD; 
Amendment 39-18147; AD 2015-09-02]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model CL-600-2E25 (Regional Jet Series 1000) 
airplanes. This AD was prompted by a determination that without an 
effective maintenance task to maintain the airplane's inherent level of 
safety, there is a potential that a dormant failure of the alternate 
release system of the landing gear could occur. This AD requires 
revising the maintenance or inspection program, as applicable, to 
incorporate a maintenance task for an operational check of the electro-
mechanical actuator and release mechanism of the alternate extension 
system for the nose landing gear and main landing gear. We are issuing 
this AD to prevent failure of the alternate release system of the 
landing gear, which could prevent the landing gear from extending 
during a failure of the normal landing gear extension system.

DATES: This AD becomes effective June 4, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of June 4, 
2015.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2015-0074 or in person at the 
Docket Management Facility, U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC.
    For service information identified in this AD, contact Bombardier, 
Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, 
Canada; telephone 514-855-5000; fax 514-855-7401; email 
thd.crj@aero.bombardier.com; Internet http://www.bombardier.com. You 
may view this referenced service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information 
on the availability of this material at the FAA, call 425-227-1221. It 
is also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2015-0074.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7318; fax 516-794-5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain Bombardier, Inc. 
Model CL-600-2E25 (Regional Jet Series 1000) airplanes. The NPRM 
published in the Federal Register on January 23, 2015 (80 FR 3498).
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2014-16, dated June 11, 2014 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for certain Bombardier, Inc. Model CL-600-2E25 
(Regional Jet Series 1000) airplanes. The MCAI states:

    During a design review, an error was identified which led to the 
development of a new certification maintenance requirement (CMR) 
task. Without an effective maintenance task to maintain the 
aeroplane's inherent level of safety, there is a potential that a 
dormant failure of the alternate release system of the landing gear 
could occur. Failure of the landing gear alternate release system 
could prevent the landing gear from extending in the case of a 
failure of the normal landing gear extension system.
    This [Canadian] AD mandates the incorporation of a new 
maintenance task to ensure operation of the landing gear alternate 
extension system.

    You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2015-0074-0003.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (80 FR 3498, January 23, 
2015) or on the determination of the cost to the public.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting this AD as proposed except for 
minor editorial changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM (80 FR 3498, January 23, 2015) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (80 FR 3498, January 23, 2015).

Related Service Information Under 1 CFR Part 51

    Bombardier, Inc. has issued Temporary Revision (TR) ALI-0472, dated 
February 27, 2014, to Section 1-32 of Part 2, Bombardier Airworthiness 
Limitations, of the CRJ Series Regional Jet Maintenance Requirements 
Manual, CSP B-053. This service information describes a maintenance 
task for an operational check of the electro-mechanical actuator and 
release mechanism of the alternate extension system for the nose 
landing gear and main landing gear. The actions described in this 
service information are intended to correct the unsafe condition 
identified in the MCAI. This service information is reasonably 
available at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2015-

[[Page 24199]]

0074. Or see ADDRESSES for other ways to access this service 
information.

Costs of Compliance

    We estimate that this AD affects 35 airplanes of U.S. registry.
    We also estimate that it will take about 1 work-hour per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour. Based on these figures, we estimate the cost of 
this AD on U.S. operators to be $2,975, or $85 per product.

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 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 the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. 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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2015-0074; or in person at the 
Docket Management Facility between 9 a.m. and 5 p.m., Monday through 
Friday, except Federal holidays. The AD docket contains this AD, the 
regulatory evaluation, any comments received, and other information. 
The street address for the Docket Operations office (telephone 800-647-
5527) is in the ADDRESSES section.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

    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):

2015-09-02 Bombardier, Inc.: Amendment 39-18147. Docket No. FAA-
2015-0074; Directorate Identifier 2014-NM-138-AD.

(a) Effective Date

    This AD becomes effective June 4, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model CL-600-2E25 (Regional 
Jet Series 1000) airplanes, certificated in any category, serial 
numbers 19002 and subsequent.

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
Gear.

(e) Reason

    This AD was prompted by a determination that without an 
effective maintenance task to maintain the airplane's inherent level 
of safety, there is a potential that a dormant failure of the 
alternate release system of the landing gear can occur. We are 
issuing this AD to prevent failure of the alternate release system 
of the landing gear, which could prevent the landing gear from 
extending during a failure of the normal landing gear extension 
system.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Maintenance or Inspection Program Revision

    Within 30 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate 
Task 32-01-00-101, ``Operational Check of the MLG [Main Landing 
Gear] and NLG [Nose Landing Gear] AES [Alternate Extension System] 
EMA [Electro-mechanical Actuator] and Release Mechanism (CRJ1000),'' 
for the operational check of the MLG and NLG AES EMA and release 
mechanism, as specified in Bombardier Temporary Revision (TR) ALI-
0472, dated February 27, 2014, to Section 1-32 of Part 2, 
Airworthiness Limitations, of the Bombardier CRJ Series Regional 
Jet, Maintenance Requirements Manual, CSP B-053. The initial 
compliance time for the operational check is at the applicable time 
specified in paragraphs (g)(1) and (g)(2) of this AD.
    (1) For airplanes that have accumulated 540 total flight hours 
or more as of the effective date of this AD: Within 660 flight hours 
after the effective date of this AD.
    (2) For airplanes that have accumulated less than 540 total 
flight hours as of the effective date of this AD: Before the 
accumulation of 1,200 total flight hours.

(h) No Alternative Actions or Intervals

    After accomplishing the revision required by paragraph (g) of 
this AD, no alternative actions (e.g., inspections) or intervals may 
be used unless the actions or intervals are approved as an 
alternative method of compliance (AMOC) in accordance with the 
procedures specified in paragraph (i)(1) of this AD.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office (ACO), ANE-170, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the ACO, send it to ATTN: Program Manager, Continuing 
Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite 
410, Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. 
Before using any approved AMOC, notify your appropriate principal 
inspector, or lacking a principal inspector, the manager of the 
local flight standards district office/certificate holding district 
office. The AMOC approval letter must specifically reference this 
AD.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, New York ACO, 
ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or 
Bombardier, Inc.'s TCCA Design Organization Approval (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

[[Page 24200]]

(j) Related Information

    Refer to Mandatory Continuing Airworthiness Information (MCAI) 
Canadian Airworthiness Directive CF-2014-16, dated June 11, 2014, 
for related information. This MCAI may be found in the AD docket on 
the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-
2015-0074-0003.

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Bombardier Temporary Revision ALI-0472, dated February 27, 
2014, to Section 1-32 of Part 2, Airworthiness Limitations, of the 
Bombardier CRJ Series Regional Jet Maintenance Requirements Manual, 
CSP B-053.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; email thd.crj@aero.bombardier.com; Internet http://www.bombardier.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference 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/cfr/ibr-locations.html.

    Issued in Renton, Washington, on April 14, 2015.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-09813 Filed 4-29-15; 8:45 am]
BILLING CODE 4910-13-P


