83_FR_31774 83 FR 31643 - Airworthiness Directives; Bombardier, Inc., Airplanes

83 FR 31643 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 131 (July 9, 2018)

Page Range31643-31645
FR Document2018-14501

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes; Model CL-600-2D24 (Regional Jet Series 900) airplanes; and Model CL- 600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports indicating that corrosion was found on the main landing gear (MLG) retraction actuator brackets and their associated pins. This AD requires an inspection of the retraction actuator brackets, their associated pins and hardware, and the mating lugs on the MLG outer cylinder for any corrosion, and replacement if necessary. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 131 (Monday, July 9, 2018) 
[Federal Register Volume 83, Number 131 (Monday, July 9, 2018)]
[Rules and Regulations]
[Pages 31643-31645]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-14501]



========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

========================================================================


Federal Register / Vol. 83, No. 131 / Monday, July 9, 2018 / Rules 
and Regulations

[[Page 31643]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0275; Product Identifier 2018-NM-011-AD; Amendment 
39-19323; AD 2018-14-03]
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-600-2C10 (Regional Jet Series 700, 701, & 
702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes; 
Model CL-600-2D24 (Regional Jet Series 900) airplanes; and Model CL-
600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by 
reports indicating that corrosion was found on the main landing gear 
(MLG) retraction actuator brackets and their associated pins. This AD 
requires an inspection of the retraction actuator brackets, their 
associated pins and hardware, and the mating lugs on the MLG outer 
cylinder for any corrosion, and replacement if necessary. We are 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective August 13, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of August 13, 
2018.

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 North 
America toll-free telephone 1-866-538-1247 or direct-dial telephone 1-
514-855-2999; fax 514-855-7401; email [email protected]; 
internet http://www.bombardier.com. You may view this service 
information at the FAA, Transport Standards Branch, 2200 South 216th 
St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195. It is also available on the 
internet at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2018-0275.

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-2018-
0275; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The address for Docket Operations (phone: 800-647-
5527) is in the ADDRESSES section. Comments will be available in the AD 
docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, 
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7329; 
fax 516-794-5531.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued an NPRM to amend 14 CFR part 39 by adding an AD that 
would apply to certain Bombardier, Inc., Model CL-600-2C10 (Regional 
Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet 
Series 705) airplanes; Model CL-600-2D24 (Regional Jet Series 900) 
airplanes; and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. 
The NPRM published in the Federal Register on April 13, 2018 (83 FR 
16015). The NPRM was prompted by reports indicating that corrosion was 
found on the MLG retraction actuator brackets and their associated 
pins. The NPRM proposed to require inspection of the retraction 
actuator brackets, their associated pins and hardware, and the mating 
lugs on the MLG outer cylinder for any corrosion, and replacement if 
necessary.
    We are issuing this AD to address undetected corrosion on the MLG 
retraction actuator brackets and their associated pins, which could 
lead to a MLG collapse.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2017-34, dated October 
19, 2017 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Bombardier, Inc., Model CL-600-2C10 (Regional Jet 
Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet 
Series 705) airplanes; Model CL-600-2D24 (Regional Jet Series 900) 
airplanes; and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. 
The MCAI states:

    There have been in-service reports of corrosion on the main 
landing gear (MLG) retraction actuator bracket and its associated 
pins. Bombardier's investigation determined that the corrosion is 
the consequence of inadequate corrosion protection being applied 
during production. Undetected corrosion on the MLG retraction 
actuator bracket and its associated pins could result in a MLG 
collapse.
    This [Canadian] AD mandates the inspection of the MLG retraction 
actuator bracket, its associated pins and hardware, and the mating 
lugs on the MLG outer cylinder for corrosion. This [Canadian] AD 
also mandates the replacement of corroded MLG parts and the 
application of corrosion protection in order to mitigate the risk of 
MLG collapse.

    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-2018-
0275.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. We received no comments on the NPRM 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 final rule 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 for addressing the unsafe condition; and

[[Page 31644]]

     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR part 51

    Bombardier has issued Service Bulletin 670BA-32-060, Revision B, 
dated November 10, 2017. The service information describes a detailed 
visual inspection of the retraction actuator brackets, their associated 
pins and hardware, and the mating lugs on the MLG outer cylinder for 
any corrosion, and replacement if necessary. 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 541 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                  Cost per        Cost on U.S.
               Action                        Labor cost          Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
Inspection..........................  16 work-hours x $85 per              $0          $1,360           $735,760
                                       hour = $1,360.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that would be required based on the results of the inspection. We have 
no way of determining the number of aircraft that might need these 
replacements:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
              Action                       Labor cost              Parts cost             Cost per product
----------------------------------------------------------------------------------------------------------------
Replacement......................  1 work-hour x $85 per      Up to $75,790.......  Up to $75,875
                                    hour = $85.
----------------------------------------------------------------------------------------------------------------

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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes and 
associated appliances to the Director of the System Oversight Division.

Regulatory Findings

    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.

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):

2018-14-03 Bombardier, Inc.: Amendment 39-19323; Docket No. FAA-
2018-0275; Product Identifier 2018-NM-011-AD.

(a) Effective Date

    This AD is effective August 13, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model airplanes, 
certificated in any category, identified in paragraphs (c)(1), 
(c)(2), and (c)(3) of this AD.
    (1) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) 
airplanes, serial numbers 10002 and subsequent.
    (2) Model CL-600-2D15 (Regional Jet Series 705) airplanes and 
Model CL-600-2D24 (Regional Jet Series 900) airplanes, serial 
numbers 15001 and subsequent.
    (3) Model CL-600-2E25 (Regional Jet Series 1000) airplanes, 
serial numbers 19001 and subsequent.

(d) Subject

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

(e) Reason

    This AD was prompted by reports indicating that corrosion was 
found on the main landing gear (MLG) retraction actuator brackets 
and their associated pins. We are issuing this AD to address 
undetected corrosion on the MLG retraction actuator brackets and 
their associated pins, which could lead to a MLG collapse.

[[Page 31645]]

(f) Compliance

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

 (g) Inspection and Replacement

    For any MLG dressed shock strut assembly with part numbers and 
serial numbers specified in paragraph 1.A., ``Effectivity,'' of 
Bombardier Service Bulletin 670BA-32-060, Revision B, dated November 
10, 2017, at the applicable compliance times specified in paragraphs 
(g)(1), (g)(2), or (g)(3) of this AD, do a detailed visual 
inspection of the retraction actuator brackets, their associated 
pins and hardware, and the mating lugs on the MLG outer cylinder for 
any corrosion, and do all applicable replacements, in accordance 
with the Accomplishment Instructions of Bombardier Service Bulletin 
670BA-32-060, Revision B, dated November 10, 2017. Do all applicable 
replacements before further flight.
    (1) For any MLG dressed shock strut assembly that has 
accumulated less than 10,000 total flight hours on the MLG dressed 
shock strut assembly and has been in service for less than 60 months 
since its first installation on an airplane: Within 6,600 flight 
hours or 39 months, whichever occurs first, after the effective date 
of this AD.
    (2) For any MLG dressed shock strut assembly that has 
accumulated less than or equal to 14,000 total flight hours on the 
MLG dressed shock strut assembly, and has been in service for less 
than 84 months since its first installation on an airplane, and does 
not meet the criteria in paragraph (g)(1) of this AD: Within 4,400 
flight hours or 26 months, whichever occurs first, after the 
effective date of this AD, but not to exceed 16,600 total flight 
hours on the MLG dressed shock strut assembly or 99 months since its 
first installation on an airplane, whichever occurs first.
    (3) For any MLG dressed shock strut assembly that has 
accumulated more than 14,000 total flight hours on the MLG dressed 
shock strut assembly or 84 months or more since its first 
installation on an airplane: Within 2,600 flight hours or 15 months, 
whichever occurs first, after the effective date of this AD.

(h) Parts Exempted From This AD

    For any MLG dressed shock strut assembly with part numbers and 
serial numbers specified in paragraph 1.A., ``Effectivity,'' of 
Bombardier Service Bulletin 670BA-32-060, Revision B, dated November 
10, 2017: The actions specified in paragraph (g) of this AD are not 
required provided that the actions in paragraphs (h)(1), (h)(2), or 
(h)(3) of this AD have been done.
    (1) The actions in paragraphs (h)(1)(i), (h)(1)(ii), 
(h)(1)(iii), and (h)(1)(iv) of this AD, as applicable, have been 
done on the MLG dressed shock strut assembly since its entry-into-
service date.
    (i) Airplane Maintenance Manual (AMM) Task 32-32-05-400-803, 
Installation of the Outboard MLG Retraction Actuator Bracket Pin, or 
equivalent task in Component Maintenance Manual (CMM) 32-11-05 (for 
Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes), 
or CMM 32-11-06 (for Model CL-600-2D15 (Regional Jet Series 705) 
airplanes and Model CL-600-2D24 (Regional Jet Series 900) 
airplanes), or CMM 32-11-34 (for Model CL-600-2E25 (Regional Jet 
Series 1000) airplanes); and
    (ii) AMM Task 32-32-05-400-804, Installation of the Inboard MLG 
Retraction-Actuator Bracket Pin, or equivalent task in CMM 32-11-05 
(for Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) 
airplanes), or CMM 32-11-06 (for Model CL-600-2D15 (Regional Jet 
Series 705) airplanes and Model CL-600-2D24 (Regional Jet Series 
900) airplanes), or CMM 32-11-34 (for Model CL-600-2E25 (Regional 
Jet Series 1000) airplanes); and
    (iii) AMM Task 32-32-05-400-805, Installation of the Inboard-MLG 
Retraction-Actuator Pin, or AMM Task 32-32-05-400-801, Installation 
of the MLG Retraction-Actuator, or AMM Task 32-11-05-400-801, 
Installation of the MLG Shock-Strut Assembly; and
    (iv) For Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) 
airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, 
and Model CL-600-2D24 (Regional Jet Series 900) airplanes equipped 
with MLG auxiliary actuators: AMM Task 32-32-03-400-801, 
Installation of the MLG Auxiliary Actuator, or AMM Task 32-11-05-
400-801, Installation of the MLG Shock-Strut Assembly.
    (2) AMM Task 32-32-05-400-806, Installation of the MLG 
Retraction-Actuator Bracket has been accomplished on the MLG dressed 
shock strut assembly since its entry-into-service date.
    (3) AMM Task 32-11-00-610-801, Restoration (Overhaul) of the MLG 
Assembly has been accomplished on the MLG dressed shock strut 
assembly since its entry-into-service date.

(i) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(g) of this AD, if those actions were performed before the effective 
date of this AD using Bombardier Service Bulletin 670BA-32-060, 
dated May 2, 2017, or Bombardier Service Bulletin 670BA-32-060, 
Revision A, dated June 22, 2017.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO Branch, 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 manager of the certification 
office, send it to ATTN: Program Manager, Continuing Operational 
Safety, FAA, New York ACO Branch, 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.
    (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 
Branch, 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.

(k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2017-34, dated October 19, 2017, 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-2018-0275.
    (2) For more information about this AD, contact Aziz Ahmed, 
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7329; fax 516-794-5531.
    (3) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (l)(3) and (l)(4) of this AD.

(l) 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 Service Bulletin 670BA-32-060, Revision B, dated 
November 10, 2017.
    (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; Widebody Customer Response Center 
North America toll-free telephone 1-866-538-1247 or direct-dial 
telephone 1-514-855-2999; fax 514-855-7401; email 
[email protected]; internet http://www.bombardier.com.
    (4) You may view this service information at the FAA, Transport 
Standards Branch, 2200 South 216th St., Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.
    (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 Des Moines, Washington, on June 26, 2018.
Jeffrey E. Duven,
Director, System Oversight Division, Aircraft Certification Service.
[FR Doc. 2018-14501 Filed 7-6-18; 8:45 am]
 BILLING CODE 4910-13-P

31643 Rules and Regulations Federal Register Vol. 83, No. 131 Monday, July 9, 2018 This section of the FEDERAL REGISTER 1–514–855–2999; fax 514–855–7401; We are issuing this AD to address contains regulatory documents having general email ac.yul@aero.bombardier.com; undetected corrosion on the MLG applicability and legal effect, most of which internet http://www.bombardier.com. retraction actuator brackets and their are keyed to and codified in the Code of You may view this service information associated pins, which could lead to a Federal Regulations, which is published under at the FAA, Transport Standards MLG collapse. 50 titles pursuant to 44 U.S.C. 1510. Branch, 2200 South 216th St., Des Transport Canada Civil Aviation The Code of Federal Regulations is sold by Moines, WA. For information on the (TCCA), which is the aviation authority the Superintendent of Documents. availability of this material at the FAA, for Canada, has issued Canadian AD call 206–231–3195. It is also available CF–2017–34, dated October 19, 2017 on the internet at http:// (referred to after this as the Mandatory DEPARTMENT OF TRANSPORTATION www.regulations.gov by searching for Continuing Airworthiness Information, and locating Docket No. FAA–2018– or ‘‘the MCAI’’), to correct an unsafe Federal Aviation Administration 0275. condition for certain Bombardier, Inc., 14 CFR Part 39 Examining the AD Docket Model CL–600–2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model [Docket No. FAA–2018–0275; Product You may examine the AD docket on CL–600–2D15 (Regional Jet Series 705) Identifier 2018–NM–011–AD; Amendment the internet at http:// airplanes; Model CL–600–2D24 39–19323; AD 2018–14–03] www.regulations.gov by searching for (Regional Jet Series 900) airplanes; and RIN 2120–AA64 and locating Docket No. FAA–2018– Model CL–600–2E25 (Regional Jet Series 0275; or in person at Docket Operations 1000) airplanes. The MCAI states: Airworthiness Directives; Bombardier, between 9 a.m. and 5 p.m., Monday There have been in-service reports of Inc., Airplanes through Friday, except Federal holidays. corrosion on the main landing gear (MLG) The AD docket contains this final rule, retraction actuator bracket and its associated AGENCY: Federal Aviation the regulatory evaluation, any pins. Bombardier’s investigation determined Administration (FAA), Department of comments received, and other that the corrosion is the consequence of Transportation (DOT). information. The address for Docket inadequate corrosion protection being ACTION: Final rule. Operations (phone: 800–647–5527) is in applied during production. Undetected the ADDRESSES section. Comments will corrosion on the MLG retraction actuator SUMMARY: We are adopting a new bracket and its associated pins could result be available in the AD docket shortly airworthiness directive (AD) for certain in a MLG collapse. after receipt. Bombardier, Inc., Model CL–600–2C10 This [Canadian] AD mandates the (Regional Jet Series 700, 701, & 702) FOR FURTHER INFORMATION CONTACT: Aziz inspection of the MLG retraction actuator airplanes; Model CL–600–2D15 Ahmed, Aerospace Engineer, Airframe bracket, its associated pins and hardware, (Regional Jet Series 705) airplanes; and Mechanical Systems Section, FAA, and the mating lugs on the MLG outer New York ACO Branch, 1600 Stewart cylinder for corrosion. This [Canadian] AD Model CL–600–2D24 (Regional Jet also mandates the replacement of corroded Series 900) airplanes; and Model CL– Avenue, Suite 410, Westbury, NY MLG parts and the application of corrosion 600–2E25 (Regional Jet Series 1000) 11590; telephone 516–228–7329; fax protection in order to mitigate the risk of airplanes. This AD was prompted by 516–794–5531. MLG collapse. reports indicating that corrosion was SUPPLEMENTARY INFORMATION: found on the main landing gear (MLG) You may examine the MCAI in the retraction actuator brackets and their Discussion AD docket on the internet at http:// associated pins. This AD requires an www.regulations.gov by searching for We issued an NPRM to amend 14 CFR and locating Docket No. FAA–2018– inspection of the retraction actuator part 39 by adding an AD that would brackets, their associated pins and 0275. apply to certain Bombardier, Inc., Model hardware, and the mating lugs on the CL–600–2C10 (Regional Jet Series 700, Comments MLG outer cylinder for any corrosion, 701, & 702) airplanes; Model CL–600– and replacement if necessary. We are 2D15 (Regional Jet Series 705) airplanes; We gave the public the opportunity to issuing this AD to address the unsafe Model CL–600–2D24 (Regional Jet participate in developing this final rule. condition on these products. Series 900) airplanes; and Model CL– We received no comments on the NPRM DATES: This AD is effective August 13, 600–2E25 (Regional Jet Series 1000) or on the determination of the cost to 2018. airplanes. The NPRM published in the the public. The Director of the Federal Register Federal Register on April 13, 2018 (83 Conclusion approved the incorporation by reference FR 16015). The NPRM was prompted by of a certain publication listed in this AD reports indicating that corrosion was We reviewed the relevant data and as of August 13, 2018. found on the MLG retraction actuator determined that air safety and the sradovich on DSK3GMQ082PROD with RULES ADDRESSES: For service information brackets and their associated pins. The public interest require adopting this identified in this final rule, contact NPRM proposed to require inspection of final rule as proposed, except for minor Bombardier, Inc., 400 Côte-Vertu Road the retraction actuator brackets, their editorial changes. We have determined West, Dorval, Québec H4S 1Y9, Canada; associated pins and hardware, and the that these minor changes: Widebody Customer Response Center mating lugs on the MLG outer cylinder • Are consistent with the intent that North America toll-free telephone 1– for any corrosion, and replacement if was proposed in the NPRM for 866–538–1247 or direct-dial telephone necessary. addressing the unsafe condition; and VerDate Sep<11>2014 16:03 Jul 06, 2018 Jkt 244001 PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 E:\FR\FM\09JYR1.SGM 09JYR1

31644 Federal Register / Vol. 83, No. 131 / Monday, July 9, 2018 / Rules and Regulations • Do not add any additional burden information describes a detailed visual course of business or by the means upon the public than was already inspection of the retraction actuator identified in the ADDRESSES section. proposed in the NPRM. brackets, their associated pins and hardware, and the mating lugs on the Costs of Compliance Related Service Information Under 1 MLG outer cylinder for any corrosion, We estimate that this AD affects 541 CFR part 51 and replacement if necessary. This airplanes of U.S. registry. Bombardier has issued Service service information is reasonably Bulletin 670BA–32–060, Revision B, available because the interested parties We estimate the following costs to dated November 10, 2017. The service have access to it through their normal comply with this AD: ESTIMATED COSTS Cost per Cost on U.S. Action Labor cost Parts cost product operators Inspection ............................. 16 work-hours × $85 per hour = $1,360 ............................ $0 $1,360 $735,760 We estimate the following costs to do be required based on the results of the determining the number of aircraft that any necessary replacements that would inspection. We have no way of might need these replacements: ON-CONDITION COSTS Action Labor cost Parts cost Cost per product Replacement .......................... 1 work-hour × $85 per hour = $85 ...................................... Up to $75,790 ....................... Up to $75,875 Authority for This Rulemaking Regulatory Findings Authority: 49 U.S.C. 106(g), 40113, 44701. Title 49 of the United States Code This AD will not have federalism § 39.13 [Amended] specifies the FAA’s authority to issue implications under Executive Order 13132. This AD will not have a ■ 2. The FAA amends § 39.13 by adding rules on aviation safety. Subtitle I, the following new airworthiness substantial direct effect on the States, on section 106, describes the authority of directive (AD): the relationship between the national the FAA Administrator. Subtitle VII: government and the States, or on the 2018–14–03 Bombardier, Inc.: Amendment Aviation Programs, describes in more distribution of power and 39–19323; Docket No. FAA–2018–0275; detail the scope of the Agency’s responsibilities among the various Product Identifier 2018–NM–011–AD. authority. levels of government. (a) Effective Date We are issuing this rulemaking under For the reasons discussed above, I This AD is effective August 13, 2018. the authority described in Subtitle VII, certify that this AD: Part A, Subpart III, Section 44701: (1) Is not a ‘‘significant regulatory (b) Affected ADs ‘‘General requirements.’’ Under that action’’ under Executive Order 12866, None. section, Congress charges the FAA with (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and (c) Applicability promoting safe flight of civil aircraft in This AD applies to Bombardier, Inc., Procedures (44 FR 11034, February 26, air commerce by prescribing regulations Model airplanes, certificated in any category, 1979), for practices, methods, and procedures (3) Will not affect intrastate aviation identified in paragraphs (c)(1), (c)(2), and the Administrator finds necessary for in Alaska, and (c)(3) of this AD. safety in air commerce. This regulation (1) Model CL–600–2C10 (Regional Jet (4) Will not have a significant is within the scope of that authority Series 700, 701, & 702) airplanes, serial economic impact, positive or negative, numbers 10002 and subsequent. because it addresses an unsafe condition on a substantial number of small entities (2) Model CL–600–2D15 (Regional Jet that is likely to exist or develop on under the criteria of the Regulatory Series 705) airplanes and Model CL–600– products identified in this rulemaking Flexibility Act. 2D24 (Regional Jet Series 900) airplanes, action. serial numbers 15001 and subsequent. List of Subjects in 14 CFR Part 39 (3) Model CL–600–2E25 (Regional Jet This AD is issued in accordance with Air transportation, Aircraft, Aviation Series 1000) airplanes, serial numbers 19001 authority delegated by the Executive and subsequent. safety, Incorporation by reference, Director, Aircraft Certification Service, Safety. as authorized by FAA Order 8000.51C. (d) Subject In accordance with that order, issuance Adoption of the Amendment Air Transport Association (ATA) of of ADs is normally a function of the America Code 32, Landing gear. Accordingly, under the authority Compliance and Airworthiness delegated to me by the Administrator, (e) Reason Division, but during this transition the FAA amends 14 CFR part 39 as sradovich on DSK3GMQ082PROD with RULES This AD was prompted by reports period, the Executive Director has follows: indicating that corrosion was found on the delegated the authority to issue ADs main landing gear (MLG) retraction actuator applicable to transport category PART 39—AIRWORTHINESS brackets and their associated pins. We are airplanes and associated appliances to DIRECTIVES issuing this AD to address undetected corrosion on the MLG retraction actuator the Director of the System Oversight ■ 1. The authority citation for part 39 brackets and their associated pins, which Division. continues to read as follows: could lead to a MLG collapse. VerDate Sep<11>2014 16:03 Jul 06, 2018 Jkt 244001 PO 00000 Frm 00002 Fmt 4700 Sfmt 4700 E:\FR\FM\09JYR1.SGM 09JYR1

Federal Register / Vol. 83, No. 131 / Monday, July 9, 2018 / Rules and Regulations 31645 (f) Compliance Model CL–600–2D15 (Regional Jet Series (2) Contacting the Manufacturer: For any Comply with this AD within the 705) airplanes and Model CL–600–2D24 requirement in this AD to obtain corrective compliance times specified, unless already (Regional Jet Series 900) airplanes), or CMM actions from a manufacturer, the action must done. 32–11–34 (for Model CL–600–2E25 (Regional be accomplished using a method approved Jet Series 1000) airplanes); and by the Manager, New York ACO Branch, (g) Inspection and Replacement (ii) AMM Task 32–32–05–400–804, FAA; or Transport Canada Civil Aviation For any MLG dressed shock strut assembly Installation of the Inboard MLG Retraction- (TCCA); or Bombardier, Inc.’s TCCA Design with part numbers and serial numbers Actuator Bracket Pin, or equivalent task in Approval Organization (DAO). If approved by specified in paragraph 1.A., ‘‘Effectivity,’’ of CMM 32–11–05 (for Model CL–600–2C10 the DAO, the approval must include the Bombardier Service Bulletin 670BA–32–060, (Regional Jet Series 700, 701, & 702) DAO-authorized signature. Revision B, dated November 10, 2017, at the airplanes), or CMM 32–11–06 (for Model CL– applicable compliance times specified in 600–2D15 (Regional Jet Series 705) airplanes (k) Related Information paragraphs (g)(1), (g)(2), or (g)(3) of this AD, and Model CL–600–2D24 (Regional Jet Series (1) Refer to Mandatory Continuing do a detailed visual inspection of the 900) airplanes), or CMM 32–11–34 (for Model Airworthiness Information (MCAI) Canadian retraction actuator brackets, their associated CL–600–2E25 (Regional Jet Series 1000) airplanes); and AD CF–2017–34, dated October 19, 2017, for pins and hardware, and the mating lugs on the MLG outer cylinder for any corrosion, (iii) AMM Task 32–32–05–400–805, related information. This MCAI may be and do all applicable replacements, in Installation of the Inboard-MLG Retraction- found in the AD docket on the internet at accordance with the Accomplishment Actuator Pin, or AMM Task 32–32–05–400– http://www.regulations.gov by searching for Instructions of Bombardier Service Bulletin 801, Installation of the MLG Retraction- and locating Docket No. FAA–2018–0275. 670BA–32–060, Revision B, dated November Actuator, or AMM Task 32–11–05–400–801, (2) For more information about this AD, 10, 2017. Do all applicable replacements Installation of the MLG Shock-Strut contact Aziz Ahmed, Aerospace Engineer, before further flight. Assembly; and Airframe and Mechanical Systems Section, (1) For any MLG dressed shock strut (iv) For Model CL–600–2C10 (Regional Jet FAA, New York ACO Branch, 1600 Stewart assembly that has accumulated less than Series 700, 701, & 702) airplanes, Model CL– Avenue, Suite 410, Westbury, NY 11590; 10,000 total flight hours on the MLG dressed 600–2D15 (Regional Jet Series 705) airplanes, telephone 516–228–7329; fax 516–794–5531. shock strut assembly and has been in service and Model CL–600–2D24 (Regional Jet Series (3) Service information identified in this for less than 60 months since its first 900) airplanes equipped with MLG auxiliary AD that is not incorporated by reference is installation on an airplane: Within 6,600 actuators: AMM Task 32–32–03–400–801, available at the addresses specified in flight hours or 39 months, whichever occurs Installation of the MLG Auxiliary Actuator, paragraphs (l)(3) and (l)(4) of this AD. first, after the effective date of this AD. or AMM Task 32–11–05–400–801, (2) For any MLG dressed shock strut Installation of the MLG Shock-Strut (l) Material Incorporated by Reference assembly that has accumulated less than or Assembly. (1) The Director of the Federal Register equal to 14,000 total flight hours on the MLG (2) AMM Task 32–32–05–400–806, approved the incorporation by reference dressed shock strut assembly, and has been Installation of the MLG Retraction-Actuator in service for less than 84 months since its (IBR) of the service information listed in this Bracket has been accomplished on the MLG first installation on an airplane, and does not paragraph under 5 U.S.C. 552(a) and 1 CFR dressed shock strut assembly since its entry- meet the criteria in paragraph (g)(1) of this into-service date. part 51. AD: Within 4,400 flight hours or 26 months, (3) AMM Task 32–11–00–610–801, (2) You must use this service information whichever occurs first, after the effective date Restoration (Overhaul) of the MLG Assembly as applicable to do the actions required by of this AD, but not to exceed 16,600 total has been accomplished on the MLG dressed this AD, unless this AD specifies otherwise. flight hours on the MLG dressed shock strut shock strut assembly since its entry-into- (i) Bombardier Service Bulletin 670BA–32– assembly or 99 months since its first service date. 060, Revision B, dated November 10, 2017. installation on an airplane, whichever occurs (ii) Reserved. first. (i) Credit for Previous Actions (3) For service information identified in (3) For any MLG dressed shock strut This paragraph provides credit for actions this AD, contact Bombardier, Inc., 400 Côte- assembly that has accumulated more than required by paragraph (g) of this AD, if those Vertu Road West, Dorval, Québec H4S 1Y9, 14,000 total flight hours on the MLG dressed actions were performed before the effective Canada; Widebody Customer Response shock strut assembly or 84 months or more date of this AD using Bombardier Service Center North America toll-free telephone 1– since its first installation on an airplane: Bulletin 670BA–32–060, dated May 2, 2017, 866–538–1247 or direct-dial telephone 1– Within 2,600 flight hours or 15 months, or Bombardier Service Bulletin 670BA–32– 514–855–2999; fax 514–855–7401; email whichever occurs first, after the effective date 060, Revision A, dated June 22, 2017. ac.yul@aero.bombardier.com; internet http:// of this AD. (j) Other FAA AD Provisions www.bombardier.com. (h) Parts Exempted From This AD The following provisions also apply to this (4) You may view this service information For any MLG dressed shock strut assembly AD: at the FAA, Transport Standards Branch, with part numbers and serial numbers (1) Alternative Methods of Compliance 2200 South 216th St., Des Moines, WA. For specified in paragraph 1.A., ‘‘Effectivity,’’ of (AMOCs): The Manager, New York ACO information on the availability of this Bombardier Service Bulletin 670BA–32–060, Branch, FAA, has the authority to approve material at the FAA, call 206–231–3195. Revision B, dated November 10, 2017: The AMOCs for this AD, if requested using the (5) You may view this service information actions specified in paragraph (g) of this AD procedures found in 14 CFR 39.19. In that is incorporated by reference at the are not required provided that the actions in accordance with 14 CFR 39.19, send your National Archives and Records paragraphs (h)(1), (h)(2), or (h)(3) of this AD request to your principal inspector or local Administration (NARA). For information on have been done. Flight Standards District Office, as the availability of this material at NARA, call (1) The actions in paragraphs (h)(1)(i), appropriate. If sending information directly 202–741–6030, or go to: http:// (h)(1)(ii), (h)(1)(iii), and (h)(1)(iv) of this AD, to the manager of the certification office, www.archives.gov/federal-register/cfr/ibr- as applicable, have been done on the MLG send it to ATTN: Program Manager, locations.html. dressed shock strut assembly since its entry- Continuing Operational Safety, FAA, New sradovich on DSK3GMQ082PROD with RULES into-service date. York ACO Branch, 1600 Stewart Avenue, Issued in Des Moines, Washington, on June (i) Airplane Maintenance Manual (AMM) Suite 410, Westbury, NY 11590; telephone 26, 2018. Task 32–32–05–400–803, Installation of the 516–228–7300; fax 516–794–5531. Before Jeffrey E. Duven, Outboard MLG Retraction Actuator Bracket using any approved AMOC, notify your Director, System Oversight Division, Aircraft Pin, or equivalent task in Component appropriate principal inspector, or lacking a Certification Service. Maintenance Manual (CMM) 32–11–05 (for principal inspector, the manager of the local Model CL–600–2C10 (Regional Jet Series 700, flight standards district office/certificate [FR Doc. 2018–14501 Filed 7–6–18; 8:45 am] 701, & 702) airplanes), or CMM 32–11–06 (for holding district office. BILLING CODE 4910–13–P VerDate Sep<11>2014 16:03 Jul 06, 2018 Jkt 244001 PO 00000 Frm 00003 Fmt 4700 Sfmt 9990 E:\FR\FM\09JYR1.SGM 09JYR1


Document Created: 2018-07-07 00:41:59
Document Modified: 2018-07-07 00:41:59
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective August 13, 2018.
ContactAziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7329; fax 516-794-5531.
FR Citation83 FR 31643 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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