Airworthiness Directive · Amendment 39-17637 · Navigation
Bombardier, Inc. Airplanes
This AD applies to the airplanes specified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category.
(1) Bombardier, Inc. Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes, serial numbers (S/Ns) 5001 through 5194 inclusive.
(2) Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes, S/Ns 5301 through 5665 inclusive, and 5701 through 5918 inclusive.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. This AD was prompted by reports of airspeed mismatch between the pilot and co-pilot's airspeed indicators, which occurred during or after heavy rain. This AD requires, for certain airplanes, inspecting for drain bottles having certain part numbers, and replacing affected drain bottles. This AD requires, for certain other airplanes, replacing drain bottles. We are issuing this AD to prevent pitot static tubing from becoming blocked by water, which if not corrected, could lead to erroneous airspeed and altitude indications, and consequent loss of control of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
For Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes having S/Ns 5001 through 5194 inclusive: Within 24 months after the effective date of this AD, inspect for drain bottles having part number (P/N) 50029-001, 50030-001, 9035000, 9035001, 9435014, 9435015, or 601A51704-5.
(1) If none of the part numbers identified in paragraph (g) of this AD are found, no further action is required by this paragraph for that airplane.
(2) If any part number identified in paragraph (g) of this AD is found: Before further flight, replace the drain bottles that are installed on the pitot and static lines of the air data computers (ADC), in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601-0617, Revision 03, dated December 20, 2012.
For Model CL-600-2B16 (CL-604 Variant) airplanes having S/Ns 5301 through 5665 inclusive: Within 24 months after the effective date of this AD, replace drain bottles installed on the pitot and static lines of the ADCs, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 604-34-065, Revision 02, dated December 20, 2012.
For Model CL-600-2B16 (CL-604 Variant) airplanes having S/Ns 5701 through 5918 inclusive: Within 24 months after the effective date of this AD, replace drain bottles installed on the pitot and static lines of the ADCs, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 605-34-027, Revision 02, dated December 20, 2012.
