Airworthiness Directive · Amendment 39-19068 · Fuselage
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model CL-600-1A11 (CL-600) airplanes, serial numbers 1004 through 1085 inclusive; Model CL-600-2A12 airplanes (CL-601 Variant), serial numbers 3001 through 3066 inclusive; and Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes, serial numbers 5001 through 5194 inclusive; certificated in any category.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601 Variant), and CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes. This AD was prompted by a report of laminated shims that may have been improperly installed at a certain wing tie beam. This AD requires revising the maintenance or inspection program to incorporate certification maintenance requirement tasks that introduce revised checks of the tie beam. We are issuing this AD to address the unsafe condition on these products.
Within 30 days after the effective date of this AD, revise the maintenance or inspection program, as applicable, to incorporate the certification maintenance requirement (CMR) task specified in the applicable service information identified in paragraphs (g)(1) through (g)(3) of this AD. The initial compliance time for the task is within the applicable time specified in the service information, or within 30 days after the effective date of this AD, whichever occurs later.
(1) For Model CL-600-1A11 (CL-600) airplanes: Task 53-10-00-131, “Pressure Floor—Wing Tie Beam—FS460.00,” of Section 5-10-30, “Airworthiness Limitation Checks by ATA Chapter Number,” of Bombardier Challenger 600 Time Limits/Maintenance Checks, Publication No. PSP 605, Revision 37, dated April 29, 2016.
(2) For Model CL-600-2A12 airplanes (CL-601 Variant) airplanes: Task 53-10-00-133, “Pressure Floor—Wing Tie Beam—FS460.00,” of Section 5-10-30, “Airworthiness Limitation Checks by ATA Chapter Number,” of Bombardier Challenger 601 Time Limits/Maintenance Checks, Publication No. PSP 601-5, Revision 44, dated April 29, 2016.
(3) For Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes: Task 53-10-00-134, “Pressure Floor—Wing Tie Beam—FS460.00,” of Section 5-10-30, “Airworthiness Limitation Checks by ATA Chapter Number,” of Bombardier Challenger 601 Time Limits/Maintenance Checks, Publication No. PSP 601A-5, Revision 40, dated April 29, 2016.
After the maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (i)(1) of this AD.
