Airworthiness Directive · Amendment 39-19905 · Flight controls
Bombardier, Inc. Airplanes
This AD applies to Bombardier, Inc. airplanes, certificated in any category, as specified in paragraphs (c)(1) through (4) of this AD.
(1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers (S/Ns) 7003 through 7990 inclusive, and S/Ns 8000 and subsequent.
(2) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, S/Ns 10002 through 10347 inclusive.
(3) Model CL-600-2D15 (Regional Jet Series 705) airplanes and Model CL-600-2D24 (Regional Jet Series 900) airplanes, S/Ns 15001 through 15469 inclusive.
(4) Model CL-600-2C11 (Regional Jet Series 550) airplanes, all serial numbers.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes; and all Bombardier, Inc., Model CL-600-2C11 (Regional Jet Series 550) airplanes. This AD was prompted by reports of fractured rudder primary feel unit shafts; a subsequent investigation determined that the fractures in the shafts are consistent with fatigue damage. This AD requires replacement of the rudder primary feel unit shaft. The FAA is issuing this AD to address the unsafe condition on these products.
Within the compliance times specified in figure (1) to paragraph (g) of this AD: Replace all rudder primary feel unit shafts that have part number (P/N) 600-90251-1 with a new shaft, in accordance with the Accomplishment Instructions of the Bombardier Service Bulletin 601R-27-166, dated April 5, 2019; or Bombardier Service Bulletin 670BA-27-075, dated April 5, 2019; as applicable. For Model CL-600-2C11 (Regional Jet Series 550) airplanes, do the replacement in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-27-075, dated April 5, 2019.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
