Airworthiness Directive · Amendment 39-22134 · Fuselage
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
This AD applies to MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers 7003 through 8079 inclusive, on which Bombardier Service Bulletin 601R-53-067 and/or Bombardier Service Bulletin 601R-53-077 has been incorporated.
The FAA is adopting a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD was prompted by a determination that a certain nondestructive test (NDT) procedure associated with a certain airworthiness limitation for inspecting surface and subsurface fatigue cracks at certain fuselage stations does not address all required inspections. This AD requires using a revised NDT procedure when performing an airworthiness limitation task. This AD also prohibits the use of earlier revisions of that NDT procedure. The FAA is issuing this AD to address the unsafe condition on these products.
As of the effective date of this AD, use MHI RJ CRJ200 Nondestructive Testing Manual (NDTM) Part 6—Eddy Current, procedure number 53-41-194, Special Detailed Inspection of the Pressure Floor at FS460.00 and/or FS513.00 Between LBL18.00 and RBL18.00, as specified in MHI RJ CRJ200 NDTM Temporary Revision 53-109, dated March 5, 2021, when performing airworthiness limitation task number 53-41-194.
Note 1 to paragraph (g): MHI RJ CRJ200 NDTM Temporary Revision 53-109, dated March 5, 2021, revises procedure number 53-41-194 specified in airworthiness limitation task number 53-41-194, which can be found in Appendix B, Airworthiness Limitations, in Part 2, Airworthiness Requirements, of the MHI RJ CL-600-2B19 Maintenance Requirements Manual, CSP A-053.
As of the effective date of this AD, it is prohibited to use MHI RJ CRJ200 NDTM Part 6—Eddy Current, procedure number 53-41-194, dated October 10, 2020, or earlier revisions when performing airworthiness limitation task number 53-41-194.
