Airworthiness directives › 2016-19-17
AD 2016-19-17 Airworthiness Directives; Bombardier, Inc. Airplanes
Applicability*9
This AD applies to the Bombardier, Inc. airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category. (1) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, having serial numbers (S/Ns) 10002 through 10333 inclusive. (2) Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900) airplanes, having S/Ns 15001 through 15284 inclusive.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) This paragraph restates the requirements of paragraph (g) of AD 2010-23-19, with new service information. For airplanes having S/Ns 10003 through 10313 inclusive, 15001 through 15238 inclusive, and 15240 through 15255 inclusive: Within 50 flight cycles after November 24, 2010 (the effective date of AD 2010-23-19), do the inspections specified in paragraphs (g)(1)(i) through (g)(1)(iv) of this AD, in accordance with “PART A—Inspection of the MLG Inboard Doors, MLG Fairing and Adjacent Structure,” of the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated October 22, 2010; or Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013; as applicable. As of the effective date of this AD, use only Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013, to accomplish the actions required by this paragraph. Repeat the inspections thereafter at intervals not to exceed 600 flight hours. (i) Do a detailed inspection for damage (including wear lines, cracks, fraying, tears, and evidence of chafing) of the rubber seal of the MLG fairing. (ii) Do a detailed inspection for damage (including missing and broken rollers, loose and missing fasteners, and damaged and missing stops) of the MLG inboard doors, and for damage along the edge of the MLG inboard door adjacent to the MLG fairing. (iii) Do a detailed inspection of the MLG fairing for damage (including missing forward and aft stops, and loose and missing fasteners), and for damage along the edge of the MLG fairing adjacent to the MLG door. (iv) Do a detailed inspection for damage (including missing stops, loose and missing fasteners, and missing wedges) of the stops and wedges on the forward and aft spars. (2) This paragraph restates the requirements of paragraph (h) of AD 2010-23-19, with revised service information. For airplanes not identified in paragraph (g)(1) of this AD, excluding the airplane having S/N 10002, and excluding airplanes having MLG fairing seals having part numbers (P/Ns) CC670-39244-5 and CC670-39244-6: Within 600 flight hours after November 24, 2010 (the effective date of AD 2010-23-19), do the inspections specified in paragraphs (g)(2)(i) through (g)(2)(iv) of this AD, in accordance with “PART A—Inspection of the MLG Inboard Doors, MLG Fairing and Adjacent Structure,” of the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated October 22, 2010; or Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013. As of the effective date of this AD, use only Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013, to accomplish the actions required by this paragraph. Repeat the inspections thereafter at intervals not to exceed 600 flight hours. (i) Do a detailed inspection for damage (including wear lines, cracks, fraying, tears, and evidence of chafing) of the rubber seal of the MLG fairing. (ii) Do a detailed inspection for damage (including missing and broken rollers, loose and missing fasteners, and damaged and missing stops) of the MLG inboard doors, and for damage along the edge of the MLG inboard door adjacent to the MLG fairing. (iii) Do a detailed inspection of the MLG fairing for damage (including missing forward and aft stops, and loose and missing fasteners), and for damage along the edge of the MLG fairing adjacent to the MLG door. (iv) Do a detailed inspection for damage (including missing stops, loose and missing fasteners, and missing wedges) of the stops and wedges on the forward and aft spars. (3) This paragraph restates the requirements of paragraph (i) of AD 2010-23-19, with revised service information. If damage to only the rubber seal on the MLG fairing is found during any inspection required by paragraph (g)(1) or (g)(2) of this AD, before further flight, do either action specified in paragraph (g)(3)(i) or (g)(3)(ii) of this AD. (i) Replace the rubber seal on the MLG fairing with a new rubber seal, in accordance with “PART B—Replacement of the Forward Rubber Seal on the MLG Fairing,” of the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated October 22, 2010; or the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013. As of the effective date of this AD, use only Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013, to accomplish the actions required by this paragraph. (ii) Remove the MLG inboard door, in accordance with “PART C—Removal of MLG Inboard Door,” of the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated October 22, 2010; or Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013. For airplanes on which the MLG inboard door is re-installed, do the installation of the MLG inboard door in accordance with “PART D—Installation of MLG Inboard Door,” of the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated October 22, 2010; or Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013. As of the effective date of this AD, use only Bombardier Alert Service Bulletin A670BA-32-030, Revision D, dated August 6, 2013, to accomplish the actions required by this paragraph. (4) This paragraph restates the requirements of paragraph (j) of AD 2010-23-19, with revised repair instructions. If damage other than the damage identified in paragraph (g)(3) of this AD is found during any inspection required by paragraph (g)(1) or (g)(2) of this AD, before further flight, contact the Bombardier Regional Aircraft Customer Response Center for repair instructions and do the repair; or repair using a method approved by the Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). As of the effective date of this AD, if damage other than the damage identified in paragraph (g)(3) of this AD is found during any inspection required by paragraph (g)(1) or (g)(2) of this AD, before further flight, repair using a method approved by the Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO.
Unsafe condition
This AD was prompted by reports of the main landing gear (MLG) failing to fully extend. We are issuing this AD to prevent loss of controllability of the airplane during landing.
Affected ADs
This AD replaces AD 2010-23-19, Amendment 39-16508 (75 FR 68695, November 9, 2010) (“AD 2010-23-19”).
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