Adoption of the Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0 1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2016-11-02, Amendment 39-18529 (81 FR 33371, May 26, 2016), and adding the following new AD:
2018-09-14 Bombardier, Inc.: Amendment 39-19271; Docket No. FAA- 2017-0530; Product Identifier 2017-NM-012-AD.
(a) Effective Date
This AD is effective June 28, 2018.
(b) Affected ADs
This AD replaces AD 2016-11-02, Amendment 39-18529 (81 FR 33371, May 26, 2016) (``AD 2016-11-02'').
(c) Applicability
This AD applies to the airplanes identified in paragraphs (c)(1) through (c)(4) of this AD, certificated in any category.
(1) Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers (S/Ns) 10002 through 10344 inclusive.
(2) Bombardier, Inc., Model CL-600-2D15 (Regional Jet Series 705) airplanes, S/Ns 15001 through 15388 inclusive, 15391, 15392, and 15395.
(3) Bombardier, Inc., Model CL-600-2D24 (Regional Jet Series 900) airplanes, S/Ns 15001 through 15388 inclusive, 15391, 15392, and 15395.
(4) Bombardier, Inc., Model CL-600-2E25 (Regional Jet Series 1000) airplanes, S/Ns 19001 through 19044 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 54, Nacelles/ Pylons.
(e) Reason
This AD was prompted by reports of loose or missing fasteners and collars on the upper and lower engine pylon structure common to the upper and lower pylon skin panels and engine thrust fitting. We are issuing this AD to prevent protruding, loose, or missing fasteners, which could result in structural failure of the engine pylons.
(f) Compliance
Comply withthis AD within the compliance times specified, unless already done.
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(g) Retained Inspection, With a Reference To Terminating Action and Additional Service Information
This paragraph restates the requirements of paragraph (g) of AD 2016-11-02, with a reference to new terminating action and additional service information. At the applicable time specified in paragraph (g)(1) or (g)(2) of this AD: Do a detailed visual inspection for protruding, loose, or missing fasteners of the upper and lower engine pylons, in accordance with Bombardier Temporary Revision 54-0007, dated March 8, 2016, to the CRJ700/900/1000 Aircraft Maintenance Manual; or Task 54-51-01-220-801, ``Detailed Inspection of the Engine Pylon Rib and Skin Fasteners,'' to Chapter 54, ``Nacelle/Pylons,'' to Part 2 of the Bombardier CRJ700/900/1000 Aircraft Maintenance Manual, CSP B-001, Revision 56, dated September 25, 2017. Repeat the inspection thereafter at intervals not to exceed 1,500 flight hours. Accomplishment of the replacement required by paragraph (j) of this AD is terminating action for the inspections required by this paragraph.
(1) For airplanes that have accumulated more than 840 total flight hours as of June 10, 2016 (the effective date of AD 2016-11- 02): Inspect within 660 flight hours or 3 months, whichever occurs first, after June 10, 2016.
(2) For airplanes that have accumulated 840 total flight hours or less as of June 10, 2016 (the effective date of AD 2016-11-02): Inspect before the accumulation of 1,500 total flight hours.
(h) Retained Repair, With New Service Information and Contact Information
This paragraph restates the requirements of paragraph (h) of AD 2016-11-02, with new service information and contact information. If any protruding, loose, or missing fastener is found during any inspection required by paragraph (g) of this AD, before further flight, repair, including applicable related investigative and corrective actions, in accordance with Bombardier Repair Engineering Order (REO) 670-54-51-034, ``Repair for Missing or Loose/Protruding Fasteners in Upper and Lower Pylon Skins FS 1088-FS 1098, PBL 69.3 L & RHS,'' dated March 7, 2016, or Revision A, dated April 20, 2016; except where Bombardier REO 670-54-51-034, ``Repair for Missing or Loose/Protruding Fasteners in Upper and Lower Pylon Skins FS 1088-FS 1098, PBL 69.3 L & RHS,'' dated March 7, 2016, or Revision A, dated April 20, 2016; specifies to contact Bombardier for further instruction, before further flight, repair using a method approved by the Manager, FAA, New York ACO Branch; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). As of the effective date of this AD, use Bombardier REO 670-54-51-034, ``Repair for Missing or Loose/ Protruding Fasteners in Upper and Lower Pylon Skins FS 1088-FS 1098, PBL 69.3 L & RHS,'' Revision A, dated April 20, 2016, for the actions required by this paragraph.
(i) Retained Credit for Previous Actions, With No Changes
This paragraph restates paragraph (i) of AD 2016-11-02, with no changes. This paragraph provides credit only for the initial inspection specified in paragraph (g) of this AD, if that action was performed before June 10, 2016 (the effective date of AD 2016-11-02) using Bombardier Reference Instruction Letter 4212, dated December 23, 2015; or Bombardier Reference Instruction Letter 4212A, Revision A, dated January 28, 2016. These documents are not incorporated by reference in this AD.
(j) New Requirements of This AD: Fastener and Collar Replacement
Within 12,600 flight hours or 72 months after the effective date of this AD, whichever occurs first: Replace affected fasteners and collars, including doing all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-54-007, dated May 13, 2016. Where Bombardier Service Bulletin 670BA-54-007, dated May 13, 2016, specifies to contact Bombardier for appropriate action: Before further flight, accomplish the applicable corrective action in accordance with the procedures specified in paragraph (m)(2) of this AD.
(k) Terminating Action for the Introductory Text of Paragraph (g) of This AD
Accomplishing the replacement required by paragraph (j) of this AD constitutes terminating action for the inspections required by the introductory text of paragraph (g) of this AD.
(l) Credit for Previous Actions
(1) This paragraph provides credit for the actions specified in paragraph (h) of this AD, if those actions were performed before the effective date of this AD using Bombardier REO 670-54-51-034, ``Repair for Missing or Loose/Protruding Fasteners in Upper and Lower Pylon Skins FS 1088-FS 1098, PBL 69.3 L & RHS,'' dated March 7, 2016. This document was incorporated by reference in AD 2016-11- 02.
(2) This paragraph provides credit for the actions specified in paragraph (j) of this AD, if those actions were performed before the effective date of this AD using Bombardier REO 670-54-51-035, ``Permanent Repair for Clearance Fit Installed (-8) Size Fasteners in Upper and Lower Pylon Skins FS 1088--FS 1098, PBL 69.3 L & RHS & Terminating Action for GREO 670-54-51-034,'' dated April 20, 2016. This document is not incorporated by reference in this AD.
(m) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, FAA, New York ACO Branch, 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.
(i) 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.
(ii) AMOCs approved previously for AD 2016-11-02 are acceptable for the corresponding provisions of 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, FAA, New York ACO Branch; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature.
(n) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF-2016-10R1, dated July 8, 2016, for related information. This MCAI may be found in the AD docket on the internet at http://www.regulations.gov bysearching for and locating Docket No. FAA-2017-0530.
(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 (o)(5) and (o)(6) of this AD.
(o) Material Incorporated by Reference
(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.
(3) The following service information was approved for IBR on June 28, 2018.
(i) Bombardier Repair Engineering Order 670-54-51-034, ``Repair for Missing or Loose/Protruding Fasteners in Upper and Lower Pylon Skins FS 1088--FS 1098, PBL 69.3 L & RHS,'' Revision A, dated April 20, 2016.
(ii) Bombardier Service Bulletin 670BA-54-007, dated May 13, 2016.
(iii) Task 54-51-01-220-801, ``Detailed Inspection of the Engine Pylon Rib and Skin Fasteners,'' to Chapter 54, ``Nacelle/Pylons,'' to Part 2 of the Bombardier CRJ700/900/1000 Aircraft Maintenance Manual, CSP B-001, Revision 56, dated September 25, 2017.
(4) The following service information was approved for IBR on June 10, 2016 (81 FR 33371, May 26, 2016).
(i) Bombardier Temporary Revision 54-0007, dated March 8, 2016, to the CRJ700/900/1000 Aircraft Maintenance Manual.
(ii) Reserved.
(5) For service information identified in this AD, contact Bombardier, Inc., 400 C[ocirc]te
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Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514 855-7401; email thd.crj@aero.bombardier.com; internet http://www.bombardier.com.
(6) You mayview this service information at the FAA, Transport Standards Branch, 2200 South 216th Street, Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.
(7) 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.