Airworthiness Directives; Bombardier, Inc. Airplanes, 49876-49878 [2016-17863]

Download as PDF 49876 Federal Register / Vol. 81, No. 146 / Friday, July 29, 2016 / Rules and Regulations accordance with the procedures specified in paragraph (j) of this AD. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, Los Angeles Aircraft Certification Office (ACO), 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 ACO, send it to the attention of the person identified in paragraph (k) of this AD. Information may be emailed to: 9-ANM-LAACO-AMOCRequests@faa.gov. (2) 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. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes ODA that has been authorized by the Manager, Los Angeles ACO, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (4) Except as required by paragraph (h) of this AD: For service information that contains steps that are labeled as Required for Compliance (RC), the provisions of paragraphs (j)(4)(i) and (j)(4)(ii) of this AD apply. (i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. An AMOC is required for any deviations to RC steps, including substeps and identified figures. (ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator’s maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. asabaliauskas on DSK3SPTVN1PROD with RULES (k) Related Information For more information about this AD, contact Eric Schrieber, Aerospace Engineer, Airframe Branch, ANM–120L, FAA, Los Angeles ACO, 3960 Paramount Boulevard, Lakewood, CA 90712–4137; phone: 562–627– 5348; fax: 562–627–5210; email: eric.schrieber@faa.gov. (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 the AD specifies otherwise. (i) Boeing Alert Service Bulletin 757– 53A0102, dated October 8, 2015. (ii) Reserved. VerDate Sep<11>2014 17:04 Jul 28, 2016 Jkt 238001 (3) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H–65, Seattle, WA 98124–2207; telephone: 206– 544–5000, extension 1; fax: 206–766–5680; Internet: https://www.myboeingfleet.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. (4) 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. (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: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Renton, Washington, on July 21, 2016. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016–17861 Filed 7–28–16; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2016–5463; Directorate Identifier 2016–NM–013–AD; Amendment 39–18598; AD 2016–15–07] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL–600–2C10 (Regional Jet Series 700, 701, & 702), Model CL–600–2D15 (Regional Jet Series 705), Model CL–600–2D24 (Regional Jet Series 900), and Model CL–600–2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports of corrosion found on the slat and flap torque tubes in the slat and flap control system. This AD requires replacement of the slat and flap torque tubes in the slat and flap control system. We are issuing this AD to prevent rupture of a corroded slat or flap torque tube. This condition could result in an inoperative slat or flap system and SUMMARY: PO 00000 Frm 00022 Fmt 4700 Sfmt 4700 consequent reduced controllability of the airplane. DATES: This AD is effective September 2, 2016. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of September 2, 2016. ADDRESSES: For service information identified in this final rule, contact ˆ Bombardier, Inc., 400 Cote-Vertu Road ´ West, Dorval, Quebec 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: ac.yul@aero.bombardier.com; Internet https://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 https:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 5463. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 5463; 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 Office (telephone: 800–647– 5527) is 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 20590. FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE–171, FAA, New York Aircraft Certification Office (ACO), 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–600–2C10 (Regional Jet Series 700, 701, & 702), Model CL–600–2D15 (Regional Jet Series 705), Model CL– 600–2D24 (Regional Jet Series 900), and Model CL–600–2E25 (Regional Jet Series E:\FR\FM\29JYR1.SGM 29JYR1 49877 Federal Register / Vol. 81, No. 146 / Friday, July 29, 2016 / Rules and Regulations 1000) airplanes. The NPRM published in the Federal Register on April 12, 2016 (81 FR 21503) (‘‘the NPRM’’). The NPRM was prompted by reports of corrosion found on the slat and flap torque tubes in the slat and flap control system. The NPRM proposed to require replacement of the slat and flap torque tubes in the slat and flap control system. We are issuing this AD to prevent rupture of a corroded slat or flap torque tube. This condition could result in an inoperative slat or flap system and consequent reduced controllability of the airplane. Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF–2016–03R1, dated February 18, 2016 (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), Model CL–600– 2D15 (Regional Jet Series 705), Model CL–600–2D24 (Regional Jet Series 900), and Model CL–600–2E25 (Regional Jet Series 1000) airplanes. The MCAI states: There have been a number of reports of corrosion found on the torque tubes in the slat and flap control system. Investigation revealed that the current design of the flap and slat torque tubes do not have proper corrosion protection and are not entirely sealed which leads to moisture ingress and internal corrosion. A corroded tube may rupture resulting in an inoperative slat or flap system, or in a worst case scenario, could result in reduced controllability of the aeroplane. This [Canadian] AD mandates the replacement of affected slat and flap system torque tubes with [new or] modified torque tubes. This [Canadian] AD was revised to add the statement that accomplishment of the initial Service Bulletin (SB) 670BA–27–067, dated 15 January 2015 also meets the requirements of this AD and to correct the editorial error for the release date of SB 670BA–27–067, Revision A. You may examine the MCAI in the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 5463. Comments We gave the public the opportunity to participate in developing this AD. We considered the comment received. The commenter supported the NPRM. Conclusion We reviewed the relevant data, considered the comment received, 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 for correcting the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. Related Service Information Under 1 CFR Part 51 We reviewed Bombardier Service Bulletin 670BA–27–067, Revision A, dated February 23, 2015. This service information describes procedures for replacement of the slat and flap torque tubes in the slat and flap control system. 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 509 airplanes of U.S. registry. We estimate the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Parts cost Cost per product Cost on U.S. operators Replacement of the slat and flap torque tubes 34 work-hours × $85 per hour = $2,890 ........ $105,000 $107,890 $54,916,010 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. asabaliauskas on DSK3SPTVN1PROD with RULES 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 VerDate Sep<11>2014 17:04 Jul 28, 2016 Jkt 238001 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 PO 00000 Frm 00023 Fmt 4700 Sfmt 4700 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ 2016–15–07 Bombardier, Inc.: Amendment 39–18598; Docket No. FAA–2016–5463; Directorate Identifier 2016–NM–013–AD. E:\FR\FM\29JYR1.SGM 29JYR1 49878 Federal Register / Vol. 81, No. 146 / Friday, July 29, 2016 / Rules and Regulations (a) Effective Date This AD is effective September 2, 2016. (b) Affected ADs None. (c) Applicability This AD applies to the airplanes, certificated in any category, identified in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this AD. (1) Bombardier, Inc. Model CL–600–2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers 10002 through 10342 inclusive. (2) Bombardier, Inc. Model CL–600–2D15 (Regional Jet Series 705) airplanes, serial numbers 15001 through 15361 inclusive. (3) Bombardier, Inc. Model CL–600–2D24 (Regional Jet Series 900) airplanes, serial numbers 15001 through 15361 inclusive. (4) Bombardier, Inc. Model CL–600–2E25 (Regional Jet Series 1000) airplanes, serial numbers 19001 through 19041 inclusive. (d) Subject Air Transport Association (ATA) of America Code 27, Flight controls. (e) Reason This AD was prompted by reports of corrosion found on the slat and flap torque tubes in the slat and flap control system. We are issuing this AD to prevent rupture of a corroded slat or flap torque tube. This condition could result in an inoperative slat or flap system and consequent reduced controllability of the airplane. asabaliauskas on DSK3SPTVN1PROD with RULES (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Replace Slat and Flap Torque Tubes in the Slat and Flap Control System Within the compliance times specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD, as applicable: Replace the slat and flap torque tubes in the slat and flap control system with new or modified slat and flap torque tubes, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA–27–067, Revision A, dated February 23, 2015. (1) For airplanes that have accumulated 28,000 total flight hours or less as of the effective date of this AD, or 137 months or less since the date of issuance of the original Canadian certificate of airworthiness or date of issuance of the original Canadian export certificate of airworthiness as of the effective date of this AD: Before the accumulation of 34,000 total flight hours or within 167 months since the date of issuance of the original Canadian certificate of airworthiness or date of issuance of the original Canadian export certificate of airworthiness, whichever occurs first. (2) For airplanes that have accumulated more than 28,000 total flight hours but not more than 36,000 total flight hours as of the effective date of this AD, and more than 137 months but not more than 176 months since the date of issuance of the original Canadian certificate of airworthiness or date of issuance of the original Canadian export VerDate Sep<11>2014 17:04 Jul 28, 2016 Jkt 238001 certificate of airworthiness as of the effective date of this AD: At the earlier of the times specified in paragraphs (g)(2)(i) and (g)(2)(ii) of this AD. (i) Within 6,000 flight hours or 30 months, whichever occurs first, after the effective date of this AD. (ii) Before the accumulation of 38,000 total flight hours, or within 186 months since the date of issuance of the original Canadian certificate of airworthiness or date of issuance of the original Canadian export certificate of airworthiness, whichever occurs first. (3) For airplanes that have accumulated more than 36,000 total flight hours as of the effective date of this AD, or more than 176 months since the date of issuance of the original Canadian certificate of airworthiness or date of issuance of the original Canadian export certificate of airworthiness as of the effective date of this AD: Within 2,000 flight hours or 10 months, whichever occurs first, after the effective date of this AD. (h) 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–27–067, dated January 15, 2015. (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 (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF–2016–03R1, dated February 18, 2016, for related information. This MCAI may be found in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2016–5463. PO 00000 Frm 00024 Fmt 4700 Sfmt 4700 (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (k)(3) and (k)(4) of this AD. (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 Service Bulletin 670BA–27– 067, Revision A, dated February 23, 2015. (ii) Reserved. (3) For service information identified in ˆ this AD, contact Bombardier, Inc., 400 Cote´ Vertu Road West, Dorval, Quebec 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: ac.yul@aero.bombardier.com; Internet https:// 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: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Renton, Washington, on July 21, 2016. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016–17863 Filed 7–28–16; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF ENERGY Federal Energy Regulatory Commission 18 CFR Part 40 [Docket No. RM15–14–002; Order No. 829] Revised Critical Infrastructure Protection Reliability Standards Federal Energy Regulatory Commission. ACTION: Final rule. AGENCY: The Federal Energy Regulatory Commission (Commission) directs the North American Electric Reliability Corporation to develop a new or modified Reliability Standard that addresses supply chain risk management for industrial control system hardware, software, and computing and networking services SUMMARY: E:\FR\FM\29JYR1.SGM 29JYR1

Agencies

[Federal Register Volume 81, Number 146 (Friday, July 29, 2016)]
[Rules and Regulations]
[Pages 49876-49878]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-17863]

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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-5463; Directorate Identifier 2016-NM-013-AD;
Amendment 39-18598; AD 2016-15-07]
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), Model CL-600-2D15 (Regional Jet Series 705), Model CL-600-2D24
(Regional Jet Series 900), and Model CL-600-2E25 (Regional Jet Series
1000) airplanes. This AD was prompted by reports of corrosion found on
the slat and flap torque tubes in the slat and flap control system.
This AD requires replacement of the slat and flap torque tubes in the
slat and flap control system. We are issuing this AD to prevent rupture
of a corroded slat or flap torque tube. This condition could result in
an inoperative slat or flap system and consequent reduced
controllability of the airplane.

DATES: This AD is effective September 2, 2016.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September 2,
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 North
America toll-free telephone: 1-866-538-1247 or direct-dial telephone:
1-514-855-2999; fax: 514-855-7401; email: ac.yul@aero.bombardier.com;
Internet https://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 https://www.regulations.gov by searching for and
locating Docket No. FAA-2016-5463.

Examining the AD Docket

You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
5463; 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 Office (telephone:
800-647-5527) is 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 20590.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office (ACO), 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-600-2C10 (Regional Jet Series 700, 701, & 702), Model CL-600-
2D15 (Regional Jet Series 705), Model CL-600-2D24 (Regional Jet Series
900), and Model CL-600-2E25 (Regional Jet Series

[[Page 49877]]

1000) airplanes. The NPRM published in the Federal Register on April
12, 2016 (81 FR 21503) (``the NPRM''). The NPRM was prompted by reports
of corrosion found on the slat and flap torque tubes in the slat and
flap control system. The NPRM proposed to require replacement of the
slat and flap torque tubes in the slat and flap control system. We are
issuing this AD to prevent rupture of a corroded slat or flap torque
tube. This condition could result in an inoperative slat or flap system
and consequent reduced controllability of the airplane.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD CF-2016-03R1, dated
February 18, 2016 (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), Model CL-600-2D15 (Regional Jet Series 705),
Model CL-600-2D24 (Regional Jet Series 900), and Model CL-600-2E25
(Regional Jet Series 1000) airplanes. The MCAI states:

There have been a number of reports of corrosion found on the
torque tubes in the slat and flap control system. Investigation
revealed that the current design of the flap and slat torque tubes
do not have proper corrosion protection and are not entirely sealed
which leads to moisture ingress and internal corrosion. A corroded
tube may rupture resulting in an inoperative slat or flap system, or
in a worst case scenario, could result in reduced controllability of
the aeroplane. This [Canadian] AD mandates the replacement of
affected slat and flap system torque tubes with [new or] modified
torque tubes.
This [Canadian] AD was revised to add the statement that
accomplishment of the initial Service Bulletin (SB) 670BA-27-067,
dated 15 January 2015 also meets the requirements of this AD and to
correct the editorial error for the release date of SB 670BA-27-067,
Revision A.

You may examine the MCAI in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
5463.

Comments

We gave the public the opportunity to participate in developing
this AD. We considered the comment received. The commenter supported
the NPRM.

Conclusion

We reviewed the relevant data, considered the comment received, 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 for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

We reviewed Bombardier Service Bulletin 670BA-27-067, Revision A,
dated February 23, 2015. This service information describes procedures
for replacement of the slat and flap torque tubes in the slat and flap
control system. 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 509 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
----------------------------------------------------------------------------------------------------------------
Replacement of the slat and flap 34 work-hours x $85 per $105,000 $107,890 $54,916,010
torque tubes. hour = $2,890.
----------------------------------------------------------------------------------------------------------------

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.

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):

2016-15-07 Bombardier, Inc.: Amendment 39-18598; Docket No. FAA-
2016-5463; Directorate Identifier 2016-NM-013-AD.

[[Page 49878]]

(a) Effective Date

This AD is effective September 2, 2016.

(b) Affected ADs

None.

This AD applies to the airplanes, certificated in any category,
identified in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this
AD.
(1) Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700,
701, & 702) airplanes, serial numbers 10002 through 10342 inclusive.
(2) Bombardier, Inc. Model CL-600-2D15 (Regional Jet Series 705)
airplanes, serial numbers 15001 through 15361 inclusive.
(3) Bombardier, Inc. Model CL-600-2D24 (Regional Jet Series 900)
airplanes, serial numbers 15001 through 15361 inclusive.
(4) Bombardier, Inc. Model CL-600-2E25 (Regional Jet Series
1000) airplanes, serial numbers 19001 through 19041 inclusive.

(d) Subject

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

(e) Reason

This AD was prompted by reports of corrosion found on the slat
and flap torque tubes in the slat and flap control system. We are
issuing this AD to prevent rupture of a corroded slat or flap torque
tube. This condition could result in an inoperative slat or flap
system and consequent reduced controllability of the airplane.

(f) Compliance

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

(g) Replace Slat and Flap Torque Tubes in the Slat and Flap Control
System

Within the compliance times specified in paragraph (g)(1),
(g)(2), or (g)(3) of this AD, as applicable: Replace the slat and
flap torque tubes in the slat and flap control system with new or
modified slat and flap torque tubes, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 670BA-27-
067, Revision A, dated February 23, 2015.
(1) For airplanes that have accumulated 28,000 total flight
hours or less as of the effective date of this AD, or 137 months or
less since the date of issuance of the original Canadian certificate
of airworthiness or date of issuance of the original Canadian export
certificate of airworthiness as of the effective date of this AD:
Before the accumulation of 34,000 total flight hours or within 167
months since the date of issuance of the original Canadian
certificate of airworthiness or date of issuance of the original
Canadian export certificate of airworthiness, whichever occurs
first.
(2) For airplanes that have accumulated more than 28,000 total
flight hours but not more than 36,000 total flight hours as of the
effective date of this AD, and more than 137 months but not more
than 176 months since the date of issuance of the original Canadian
certificate of airworthiness or date of issuance of the original
Canadian export certificate of airworthiness as of the effective
date of this AD: At the earlier of the times specified in paragraphs
(g)(2)(i) and (g)(2)(ii) of this AD.
(i) Within 6,000 flight hours or 30 months, whichever occurs
first, after the effective date of this AD.
(ii) Before the accumulation of 38,000 total flight hours, or
within 186 months since the date of issuance of the original
Canadian certificate of airworthiness or date of issuance of the
original Canadian export certificate of airworthiness, whichever
occurs first.
(3) For airplanes that have accumulated more than 36,000 total
flight hours as of the effective date of this AD, or more than 176
months since the date of issuance of the original Canadian
certificate of airworthiness or date of issuance of the original
Canadian export certificate of airworthiness as of the effective
date of this AD: Within 2,000 flight hours or 10 months, whichever
occurs first, after the effective date of this AD.

(h) 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-27-067,
dated January 15, 2015.

(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

(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian AD CF-2016-03R1, dated February 18, 2016, for
related information. This MCAI may be found in the AD docket on the
Internet at https://www.regulations.gov by searching for and locating
Docket No. FAA-2016-5463.
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (k)(3) and (k)(4) of this AD.

(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 Service Bulletin 670BA-27-067, Revision A, dated
February 23, 2015.
(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:
ac.yul@aero.bombardier.com; Internet https://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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

Issued in Renton, Washington, on July 21, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-17863 Filed 7-28-16; 8:45 am]
BILLING CODE 4910-13-P

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