Airworthiness Directives; Bombardier, Inc. Airplanes

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, CL-600-2D15 (Regional Jet Series 705) airplanes, CL-600-2D24 (Regional Jet Series 900) airplanes, and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD requires repetitive detailed inspections of the cage assembly, window louver panel assemblies (WLPAs), and blowout panels (BOPs), and corrective action if necessary. This AD was prompted by reports of several cases of damaged or detached decompression WLPAs and BOPs. We are issuing this AD to detect and correct damaged and detached WLPAs and BOPs. A detached WLPA or BOP could delay smoke detection in the cargo compartment, and in the event of a cargo compartment fire, this could lead to an uncontrolled cargo compartment fire.