81 FR 44996 - Airworthiness Directives; Bombardier, Inc. Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 133 (July 12, 2016)

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes. This AD was prompted by a determination that certain maintenance tasks for the horizontal stabilizer trim actuator (HSTA) are inadequate. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new airworthiness limitations for the HSTA. We are issuing this AD to detect and correct premature wear and cracking of the HSTA, which could result in failure of the HSTA and consequent loss of control of the airplane.

[Federal Register Volume 81, Number 133 (Tuesday, July 12, 2016)]
[Rules and Regulations]
[Pages 44996-44998]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-15354]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-8129; Directorate Identifier 2014-NM-197-AD; 
Amendment 39-18573; AD 2016-13-09]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes. This AD 
was prompted by a determination that certain maintenance tasks for the 
horizontal stabilizer trim actuator (HSTA) are inadequate. This AD 
requires revising the maintenance or inspection program, as applicable, 
to incorporate new airworthiness limitations for the HSTA. We are 
issuing this AD to detect and correct premature wear and cracking of 
the HSTA, which could result in failure of the HSTA and consequent loss 
of control of the airplane.

DATES: This AD becomes effective August 16, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of August 16, 
2016.

ADDRESSES: For service information identified in this final rule, 
contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; Widebody Customer Response Center, toll-
free telephone 1-866-538-1247, or direct dial telephone 1-514-855-2999; 
fax 1-514-855-7401; email [email protected]; 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

[[Page 44997]]

and locating Docket No. FAA-2015-8129.

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-
8129; 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.

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-600-2B16 (CL-604 Variant) airplanes. The NPRM published in the 
Federal Register on January 4, 2016 (81 FR 32) (``the NPRM''). The NPRM 
was prompted by a determination that certain maintenance tasks for the 
HSTA are inadequate. The NPRM proposed to require revising the 
maintenance or inspection program, as applicable, to incorporate new 
airworthiness limitations for the HSTA. We are issuing this AD to 
detect and correct premature wear and cracking of the HSTA, which could 
result in failure of the HSTA and consequent loss of control of the 
airplane.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2014-30, dated September 5, 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-
2B16 (CL-604 Variant) airplanes. The MCAI states:

    A revision has been made to the CL 604/605 Time Limits/
Maintenance Checks (TLMC) manual, to introduce new tasks for the 
HSTA. Failure to comply with the TLMC tasks could lead to an unsafe 
condition.
    This [Canadian] AD is issued to ensure that premature wear and 
cracking of the affected components are detected and corrected.

    The unsafe condition is premature wear and cracking of the HSTA, 
which could result in failure of the HSTA and consequent loss of 
control of the airplane.
    You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
8129.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comment received on the NPRM and 
the FAA's response to that comment.

Request To Change the Manufacturer's Contact Information

    Bombardier Inc., asked that we change the contact information to 
include the telephone numbers and email address for the Widebody 
Customer Response Center. Bombardier Inc. provided the updated 
information.
    We agree with the commenter. We have changed the contact 
information in this AD accordingly.

Conclusion

    We reviewed the relevant data, considered the comment received, and 
determined that air safety and the public interest require adopting 
this AD with the change described previously and minor editorial 
changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    Bombardier Inc. has issued the following service information, which 
describes procedures for revising the maintenance or inspection program 
to incorporate new airworthiness limitations for the HSTA.
     Section 5-10-40, Certification Maintenance Requirements, 
of Part 2, Airworthiness Limitations, of the Bombardier Challenger 604 
Time Limits/Maintenance Checks Manual, Revision 22, dated July 11, 
2014.
     Section 5-10-40, Certification Maintenance Requirements, 
of Part 2, Airworthiness Limitations, of the Bombardier Challenger 605 
Time Limits/Maintenance Checks Manual, Revision 10, dated July 11, 
2014.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 78 airplanes of U.S. registry.
    We also estimate that it takes 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 $6,630, 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.

[[Page 44998]]

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):

2016-13-09 Bombardier, Inc.: Amendment 39-18573. Docket No. FAA-
2015-8129; Directorate Identifier 2014-NM-197-AD.

(a) Effective Date

    This AD becomes effective August 16, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-604 
Variant) airplanes, certificated in any category, serial numbers (S/
Ns) 5301 through 5665 inclusive, and 5701 through 5962 inclusive.

(d) Subject

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

(e) Reason

    This AD was prompted by a determination that certain maintenance 
tasks for the horizontal stabilizer trim actuator (HSTA) are 
inadequate. We are issuing this AD to detect and correct premature 
wear and cracking of the HSTA, which could result in failure of the 
HSTA and consequent loss of control of the airplane.

(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 27-42-01-109, Restoration (Overhaul) of the Horizontal 
Stabilizer Trim Actuator, Part No. 604-92305-7 and Subs (Vendor Part 
No. 8454-3 and Subs); and Task 27-42-01-111, Detailed Inspection of 
the Horizontal Trim Actuator (HSTA) Secondary Load Path Indicator, 
Part No. 604-92305-7 and Subs (Vendor Part No. 8454-3 and Subs); of 
the applicable document identified in paragraph (g)(1) or (g)(2) of 
this AD.
    (1) For Model CL-600-2B16 (CL-604 Variant) airplanes, serial 
numbers 5301 through 5665 inclusive: Section 5-10-40, Certification 
Maintenance Requirements, of Part 2, Airworthiness Limitations, of 
the Bombardier Challenger 604 Time Limits/Maintenance Checks Manual, 
Revision 22, dated July 11, 2014.
    (2) For Model CL-600-2B16 (CL-604 Variant) airplanes, serial 
numbers 5701 through 5962 inclusive: Section 5-10-40, Certification 
Maintenance Requirements, of Part 2, Airworthiness Limitations, of 
the Bombardier Challenger 605 Time Limits/Maintenance Checks Manual, 
Revision 10, dated July 11, 2014.

(h) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised, as 
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 Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(j) Related Information

    Refer to Mandatory Continuing Airworthiness Information (MCAI) 
Canadian Airworthiness Directive CF-2014-30, dated September 5, 
2014, 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-2015-8129.

(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) Section 5-10-40, Certification Maintenance Requirements, of 
Part 2, Airworthiness Limitations, of the Bombardier Challenger 604 
Time Limits/Maintenance Checks Manual, Revision 22, dated July 11, 
2014.
    (ii) Section 5-10-40, Certification Maintenance Requirements, of 
Part 2, Airworthiness Limitations, of the Bombardier Challenger 605 
Time Limits/Maintenance Checks Manual, Revision 10, dated July 11, 
2014.
    (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; Widebody Customer Response Center, 
toll-free telephone 1-866-538-1247, or direct dial telephone 1-514-
855-2999; fax 1-514-855-7401; email [email protected]; 
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 June 21, 2016.
Dorr M. Anderson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-15354 Filed 7-11-16; 8:45 am]
 BILLING CODE 4910-13-P