Airworthiness Directive · Amendment 39-19103 · Periodic inspections
Bombardier, Inc., Airplanes
This AD applies to the Bombardier, Inc., airplanes identified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD, certificated in any category.
(1) Bombardier, Inc., Model CL-600-2A12 (CL-601) airplanes, having serial numbers (S/Ns) 3001 through 3066 inclusive.
(2) Bombardier, Inc., Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes, having S/Ns 5001 through 5194 inclusive.
(3) Bombardier, Inc., Model CL-600-2B16 (CL-604 Variant) airplanes having S/Ns 5301 through 5665 inclusive, and S/Ns 5701 through 5990 inclusive.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2A12 (CL-601 Variant) and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. This AD was prompted by a determination that the bushing holes on the engine mount rib might not conform to the engineering drawings and that certain inspections of the engine mount rib must be included in the airworthiness limitations section (ALS) of the Instructions for Continued Airworthiness (ICA). This AD requires revising the maintenance or inspection program to incorporate certain airworthiness limitation items (ALIs). We are issuing this AD to address the unsafe condition on these products.
Within 60 days after the effective date of this AD: Revise the maintenance or inspection program, as applicable, to incorporate inspections for fatigue cracking of the engine mount rib and corrective actions, as applicable, in accordance with a method approved by the Manager, New York ACO Branch, FAA.
Note 1 to paragraph (g) of this AD: Guidance can be found in Tasks 54-10-00-106 and 54-50-00-103 of Chapter 5 of the Bombardier Time Limits/Maintenance Checks (TLMC) Manual PSP 601-5 (for Model CL-600-2A12 (CL-601 Variant) airplanes); Bombardier TLMC Manual PSP 601A-5 (for CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes); Bombardier TLMC Manual CL-604 (for Model CL-600-2B16 (CL-604 Variant) airplanes, S/Ns 5301 through 5665 inclusive); and Bombardier TLMC Manual CL-605 (for Model CL-600-2B16 (CL-604 Variant) airplanes, S/Ns 5701 through 5990).
After the maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) and/or intervals may be used, unless the actions and/or intervals are approved as an AMOC in accordance with the procedures specified in paragraph (i)(1) of this AD.
