AD 2014-15-13 Airworthiness Directives; Bombardier, Inc. Airplanes

This AD applies to Bombardier, Inc. airplanes, certificated in any category, as identified in paragraphs (c)(1) through (c)(4) of this AD. (1) Model CL-600-1A11 (CL-600) airplanes, serial numbers 1004 through 1085 inclusive. (2) Model CL-600-2A12 (CL-601) airplanes, serial numbers 3001 through 3066 inclusive; (3) Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes, serial numbers 5001 through 5194 inclusive. (4) Model CL-600-2B16 (CL-604 Variant) airplanes, serial numbers 5301 through 5573 inclusive, 5579, and 5595. (5) This AD requires revisions to certain operator maintenance documents to include new actions (e.g., inspections). Compliance with these actions is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by this AD, the operator may not be able to accomplish the actions described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (r) of this AD. The request should include a description of changes to the required actions that will ensure the continued damage tolerance of the affected structure.

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

This paragraph restates the actions required by paragraph (f) of AD 2005-15-04, Amendment 39-14193 (70 FR 43032, July 26, 2005), with revised affected airplanes. Except for Model CL-600-2B16 airplanes having S/Ns 5514 through 5595 inclusive: At the applicable compliance time specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD, add serial numbers and part numbers, as applicable, to the parts identified in the applicable service bulletin specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD. Do all actions in accordance with the applicable service bulletin specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD. (1) For parts identified in Bombardier Service Bulletin 600-0710, Revision 01, dated December 15, 2003; and Bombardier Service Bulletin 601-0546, Revision 01, dated December 15, 2003; as having a compliance time of “five years for the parts listed in Part A”: Within 60 months after August 30, 2005 (the effective date of AD 2005-15-04, Amendment 39-14193 (70 FR 43032, July 26, 2005)). (2) For parts identified in Bombardier Service Bulletin 600-0710, Revision 01, dated December 15, 2003; and Bombardier Service Bulletin 601-0546, Revision 01, dated December 15, 2003; as having a compliance time of “ten years for the parts listed in Part B”: Within 120 months after August 30, 2005 (the effective date of AD 2005-15-04, Amendment 39-14193 (70 FR 43032, July 26, 2005)). (3) For parts identified in Bombardier Service Bulletin 604-32-014, dated May 31, 2002, as having a compliance time of “no later than a calendar time of 8 years”: Within 96 months after August 30, 2005 (the effective date of AD 2005-15-04, Amendment 39-14193 (70 FR 43032, July 26, 2005)). Note 1 to paragraph (g) of this AD: The Bombardier service bulletins identified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD refer to the Messier-Dowty service bulletins identified in table 1 to paragraph (g) of this AD as additional sources of guidance for adding part numbers or serial numbers by vibro-peening the numbers on main landing gear (MLG) and nose landing gear (NLG) components that do not have them; and for determining the number of landings for parts without a part number or serial number on which the time since new (TSN) and cycles since new (CSN) have not been tracked. Table 1 to Paragraph ( g ) of This AD—Messier-Dowty Service Bulletins Model— Landing gear component— Corresponding bombardier service bulletin(s)— Messier-Dowty service bulletin— CL-600-1A11 (CL-600), CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes MLG side strut retraction actuator eye bolt 600-0710 and 601-0546 M-DT SB104467009/010-32-1, dated March 19, 2001. CL-600-2B16 (CL-604) airplanes MLG shock strut 604-32-014 M-DT SB19090-32-4, dated March 19, 2001. CL-600-2B16 (CL-604) airplanes NLG shock strut 604-32-014 M-DT SB20020-32-5, dated July 12, 2001. CL-600-1A11 (CL-600), CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes NLG drag brace hinge pin 600-0710 and 601-0546 M-DT SB200814001-32-3, dated March 19, 2001. CL-600-1A11 (CL-600) airplanes MLG shock strut 600-0710 M-DT SB200922001/2-32-6, dated March 19, 2001. CL-600-1A11 (CL-600) airplanes NLG shock strut 600-0710 M-DT SB200924003/004-32-16, dated July 12, 2001. CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes MLG shock strut pin 601-0546 M-DT SB6100-32-10, dated March 19, 2001. CL-600-1A11 (CL-600), CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes MLG side strut retraction actuator 600-0710 and 601-0546 M-DT SB6500-32-1, dated March 19, 2001. CL-600-1A11 (CL-600), CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes NLG drag brace hinge pin 600-0710 and 601-0546 M-DT SB7200-32-6, dated March 19, 2001. CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A and CL-601-3R) airplanes NLG shock strut 601-0546 M-DT SB7300-32-16, dated July 12, 2001.

This AD was prompted by reports that landing gear parts that have safe-life limits but do not have serial numbers (S/Ns) or part numbers (P/Ns) can be removed from one landing gear and re-installed on another, making tracking difficult. We are issuing this AD to prevent life-limited landing gear parts from being used beyond their safe-life limits, which could lead to collapse of the landing gear.

This AD replaces AD 2005-15-04, Amendment 39-14193 (70 FR 43032, July 26, 2005).