
[Federal Register Volume 80, Number 50 (Monday, March 16, 2015)]
[Rules and Regulations]
[Pages 13483-13486]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2015-05735]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0491; Directorate Identifier 2015-NM-019-AD; 
Amendment 39-18117; AD 2015-05-07]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule; request for comments.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2015-02-06 for 
certain Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes. 
AD 2015-02-06 required a revision to the airplane flight manual, a 
revision to the maintenance or inspection program, as applicable, and 
replacement of horizontal stabilizer trim actuators (HSTAs) having 
certain part numbers. This new AD continues to require those actions 
and corrects certain typographical errors. This AD was prompted by the 
discovery of three typographical errors in AD 2015-02-06. We are 
issuing this AD to detect and correct loose spur gear bolts on the 
HSTA, which, if combined with the failure of the primary load path, 
could lead to failure of the HSTA and subsequent loss of the airplane.

DATES: This AD becomes effective March 16, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of March 6, 2015 
(80 FR 5017, January 30, 2015).
    We must receive comments on this AD by April 30, 2015

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
     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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
0491; or in person at the Docket Operations office between 9 a.m. and 5 
p.m., Monday through Friday, except

[[Page 13484]]

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. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Ricardo Garcia, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7331; fax 516-794-5531.

SUPPLEMENTARY INFORMATION:

Discussion

    On January 11, 2015, we issued AD 2015-02-06, Amendment 39-18073 
(80 FR 5017, January 30, 2015). AD 2015-02-06 applied to certain 
Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes. AD 2015-
02-06 was prompted by reports of loose, broken, or backed-out spur gear 
bolts on the HSTA. AD 2015-02-06 required a revision to the airplane 
flight manual, a revision to the maintenance or inspection program, as 
applicable, and replacement of HSTAs having certain part numbers. We 
issued AD 2015-02-06 to detect and correct loose spur gear bolts on the 
HSTA, which, if combined with the failure of the primary load path, 
could lead to failure of the HSTA and subsequent loss of the airplane.
    Since we issued AD 2015-02-06, Amendment 39-18073 (80 FR 5017, 
January 30, 2015), three typographical errors were discovered in AD 
2015-02-06.
    As published, a digit was missing from the engineer's phone number 
in the FOR FURTHER INFORMATION CONTACT section of the preamble of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015). The 
correct phone number is ``516-228-7331.''
    As published, the AD number of AD 2015-02-06, Amendment 39-18073 
(80 FR 5017, January 30, 2015), appears as ``2014-02-06'' in the 
Product Identification line of the regulatory text of the AD. The 
correct AD number is ``2015-02-06.'' The AD number is referenced 
correctly throughout the remainder of that document.
    As published, a vendor part number in paragraph (j) of AD 2015-02-
06, Amendment 39-18073 (80 FR 5017, January 30, 2015), was incorrectly 
identified as ``845401.'' The correct vendor part number is ``8454-1.''
    Since this new AD replaces AD 2015-02-06, Amendment 39-18073 (80 FR 
5017, January 30, 2015), there are no additional changes in this new 
AD.

FAA's Determination and Requirements of This AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are issuing this AD because we 
evaluated all pertinent information and determined the unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

FAA's Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD. The FAA has found that the risk to the flying public justifies 
waiving notice and comment prior to adoption of this rule because of 
the urgency to correct the part number and AD number errors to avoid 
non-compliance. Therefore, we determined that notice and opportunity 
for public comment before issuing this AD are impracticable and that 
good cause exists for making this amendment effective in fewer than 30 
days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not precede it by notice and opportunity for public 
comment. We invite you to send any written relevant data, views, or 
arguments about this AD. Send your comments to an address listed under 
the ADDRESSES section. Include ``Docket No. FAA-2015-0491; Directorate 
Identifier 2015-NM-019-AD'' at the beginning of your comments. We 
specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this AD. We will consider all 
comments received by the closing date and may amend this AD because of 
those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this AD.

Costs of Compliance

    We estimate that this AD affects 125 airplanes of U.S. registry.
    The actions required by AD 2015-02-06, Amendment 39-18073 (80 FR 
5017, January 30, 2015), and retained in this AD take about 21 work-
hours per product, at an average labor rate of $85 per work-hour. 
Required parts cost about $0 per product. Based on these figures, the 
estimated cost of the actions that are required by AD 2015-02-06 is 
$1,785 per product.
    The new requirements of this AD add no additional economic burden.
    According to the manufacturer, some of the costs of this AD may be 
covered under warranty, thereby reducing the cost impact on affected 
individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

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.

List of Subjects in 14 CFR Part 39

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

[[Page 13485]]

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 removing airworthiness directive (AD) 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), and 
adding the following new AD:

2015-05-07 Bombardier, Inc.: Amendment 39-18117. Docket No. FAA-
2015-0491; Directorate Identifier 2015-NM-019-AD.

(a) Effective Date

    This AD becomes effective March 16, 2015.

(b) Affected ADs

    This AD replaces AD 2015-02-06, Amendment 39-18073 (80 FR 5017, 
January 30, 2015).

(c) Applicability

    This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-604 
Variant) airplanes, certificated in any category, serial numbers 
5301 and subsequent, equipped with horizontal stabilizer trim 
actuator (HSTA) part number (P/N) 604-92305-3 (vendor P/N 8454-1) or 
P/N 604-92305-5 (vendor P/N 8454-2).

(d) Subject

    Air Transport Association (ATA) of America Code 27, Flight 
Controls.

(e) Reason

    This AD was prompted by the discovery of three typographical 
errors in AD 2015-02-06. We are issuing this AD to detect and 
correct loose spur gear bolts on the HSTA, which, if combined with 
the failure of the primary load path, could lead to failure of the 
HSTA and subsequent loss of the airplane.

(f) Compliance

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

(g) Retained Airplane Flight Manual (AFM) Revision, With No Changes

    This paragraph restates the requirements of paragraph (g) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
no changes. Within 30 days after March 6, 2015 (the effective date 
of AD 2015-02-06: Revise the Normal Procedures section of the 
applicable Bombardier AFM to include the information in the 
applicable temporary revision (TR) specified in paragraph (g)(1) or 
(g)(2) of this AD. The TRs introduce revised procedures for the 
stabilizer trim system check. Operate the airplane according to the 
limitations and procedures in the applicable TR. The revision may be 
done by inserting a copy of the applicable TR specified in paragraph 
(g)(1) or (g)(2) of this AD into the AFM. When the TR has been 
included in the general revisions of the AFM, the general revisions 
may be inserted into the AFM, provided the relevant information in 
the general revision is identical to that in the applicable TR, and 
the TR may be removed.
    (1) Bombardier Temporary Revision (TR) 604/37, dated May 21, 
2013, to the Bombardier Challenger CL-604 Airplane Flight Manual, 
PSP 604-1.
    (2) Bombardier TR 605/18, dated May 21, 2013, to the Bombardier 
Challenger CL-605 Airplane Flight Manual, PSP 605-1.

(h) Retained Maintenance or Inspection Program Revision, With No 
Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
no changes. Within 30 days after March 6, 2015 (the effective date 
of AD 2015-02-06): Revise the maintenance or inspection program, as 
applicable, by incorporating procedures for an Operational Test 
(BITE) of the Horizontal Stabilizer Trim Controls System (HSTCS), in 
accordance with a method approved by the Manager, New York Aircraft 
Certification Office (ACO), ANE-170, FAA; or Transport Canada Civil 
Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval 
Organization (DAO). The initial compliance time for the operational 
test is within 100 flight hours after March 6, 2015 (the effective 
date of AD 2015-02-06).

    Note 1 to paragraph (h) of this AD:  Bombardier Task 27-41-00-
101, Operational Test (BITE) of the Horizontal Stabilizer Trim 
Controls System (HSTCS), provides guidance for the operational test 
specified in paragraph (h) of this AD. Bombardier Task 27-41-00-101 
is included in the Bombardier Challenger 604 Time Limits/Maintenance 
Checks (TLMC) Manual; and in the Bombardier Challenger 605 TLMC 
Manual.

(i) Retained No Alternative Actions or Intervals, With No Changes

    This paragraph restates the requirements of paragraph (i) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
no changes. After the maintenance or inspection program has been 
revised, as required by paragraph (h) 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 (m)(1) of this AD.

(j) Retained HSTA Replacement, With Corrected Vendor Part Number

    This paragraph restates the requirements of paragraph (j) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
a corrected vendor part number. For airplanes equipped with a HSTA 
having P/N 604-92305-3 (vendor P/N 8454-1) or P/N 604-92305-5 
(vendor P/N 8454-2): Within 3,000 flight hours or 26 months after 
March 6, 2015 (the effective date of AD 2015-02-06), whichever 
occurs first, replace any HSTA having P/N 604-92305-3 (vendor P/N 
8454-1) or P/N 604-92305-5 (vendor P/N 8454-2) with a HSTA having P/
N 604-92305-7 (vendor P/N 8454-3), in accordance with the 
Accomplishment Instructions of Bombardier Service Bulletin 604-27-
032, Revision 02, dated April 22, 2014; or Bombardier Service 
Bulletin 605-27-002, Revision 02, dated April 22, 2014; as 
applicable.

(k) Retained Credit for Previous Actions, With No Changes

    This paragraph restates the requirements of paragraph (k) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
no changes. This paragraph provides credit for the actions required 
by paragraph (j) of this AD if those actions were performed before 
March 6, 2015 (the effective date of AD 2015-02-06) using the 
service information identified in paragraphs (k)(1) through (k)(4) 
of this AD, as applicable. This service information is not 
incorporated by reference in this AD.
    (1) Bombardier Service Bulletin 604-27-032, dated September 10, 
2012.
    (2) Bombardier Service Bulletin 604-27-032, Revision 01, dated 
April 29, 2013.
    (3) Bombardier Service Bulletin 605-27-002, dated September 10, 
2012.
    (4) Bombardier Service Bulletin 605-27-002, Revision 01, April 
29, 2013.

(l) Retained Parts Installation Prohibition, With No Changes

    This paragraph restates the requirements of paragraph (l) of AD 
2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with 
no changes. As of March 6, 2015 (the effective date of AD 2015-02-
06), no person may install any HSTA having P/N 604-92305-3 (vendor 
P/N 8454-1) or 604-92305-5 (vendor P/N 8454-2) on any airplane.

(m) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York 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; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by the 
DAO, the approval must include the DAO-authorized signature.

[[Page 13486]]

(n) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2013-18 dated July 16, 
2013, for related information. This MCAI may be found in the AD 
docket on the Internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2015-0491.
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (o)(4) and (o)(5) of this AD.

(o) 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.
    (3) The following service information was approved for IBR on 
March 6, 2015 (80 FR 5017, January 30, 2015).
    (i) Bombardier Service Bulletin 604-27-032, Revision 02, dated 
April 22, 2014.
    (ii) Bombardier Service Bulletin 605-27-002, Revision 02, dated 
April 22, 2014.
    (iii) Bombardier Temporary Revision 604/37, dated May 21, 2013, 
to the Bombardier Challenger CL-604 Airplane Flight Manual, PSP 604-
1.
    (iv) Bombardier Temporary Revision 605/18, dated May 21, 2013, 
to the Bombardier Challenger CL-605 Airplane Flight Manual, PSP 605-
1.
    (4) 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.
    (5) 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.
    (6) 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 March 5, 2015.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-05735 Filed 3-13-15; 8:45 am]
 BILLING CODE 4910-13-P


