AD 2026-14-09 Airworthiness Directives; Bombardier, Inc., Airplanes

This AD applies to Bombardier, Inc., airplanes identified in paragraphs (c)(1) through (3) of this AD, certificated in any category. (1) All Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A and 601-3R Variants) airplanes. (2) Model CL-600-2B16 (604 Variant) airplanes, serial numbers (S/Ns) 5301 through 5665 inclusive and S/Ns 5701 through 6049 inclusive. (3) Model CL-600-2B16 (604 Variant) airplanes, S/Ns 6050 through 6192 inclusive.

Comply with this AD within the compliance times specified, unless already done.

This paragraph restates the requirements of paragraph (g) of AD 2025-17-12, with removal of references to S/Ns 5301 through 6049 inclusive. For airplanes identified in paragraphs (c)(1) and (3) of this AD, comply with paragraphs (g)(1) and (2) of this AD. (1) Within 90 days after October 31, 2025 (the effective date of AD 2025-17-12), revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in the applicable time limits/maintenance checks (TLMC) document identified in table 1 to paragraph (g)(1) of this AD. The initial compliance time for doing the tasks is at the time specified in the applicable TLMC document identified in table 1 to paragraph (g)(1) of this AD, or within 90 days after October 31, 2025, whichever occurs later. Table 1 to Paragraph ( g )(1)—TLMC Documents Applicable airplanes TLMC section or part TLMC document Bombardier, Inc., Model CL-600-1A11 (600) airplanes, serial numbers (S/Ns) 1004 through 1085 inclusive Section 5-10-00, “Airworthiness Limitations” Bombardier Challenger 600 TLMC, Publication No. PSP 605, Revision 39, January 8, 2018. 1 Bombardier, Inc., Model CL-600-2A12 (601) airplanes, S/Ns 3001 through 3066 inclusive Section 5-10-00, “Airworthiness Limitations” Bombardier Challenger 601 TLMC, Publication No. PSP 601-5, Revision 46, January 8, 2018. 2 Bombardier, Inc., Model CL-600-2B16 (601-3A Variant) airplanes, S/Ns 5001 through 5134 inclusive; and Model CL-600-2B16 (601-3R Variant) airplanes, S/Ns 5135 through 5194 inclusive Section 5-10-00, “Airworthiness Limitations” Bombardier Challenger 601 TLMC, Publication No. PSP 601A-5, Revision 42, January 8, 2018. 3 Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes, S/Ns 6050 through 6180 inclusive Part 2, “Airworthiness Limitations” Bombardier Challenger 650 TLMC, Publication No. CH 650 TLMC, Revision 9, November 22, 2022. 1  For obtaining these sections of Bombardier Challenger 600 TLMC, Publication No. PSP 605, use Document Identification No. CH 600 TLMC. 2  For obtaining these sections of Bombardier Challenger 601 TLMC, Publication No. PSP 601-5, use Document Identification No. CH 601 TLMC. 3  For obtaining these sections of Bombardier Challenger 601 TLMC, Publication No. PSP 601A-5, use Document Identification No. CH 601 TLMC-1. (2) Within 90 days after October 31, 2025 (the effective date of AD 2025-17-12), revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in the applicable temporary revisions (TRs) identified in table 2 to paragraph (g)(2) of this AD. The initial compliance time for doing the tasks is at the time specified in the applicable TR identified in table 2 to paragraph (g)(2) of this AD, or within 90 days after October 31, 2025, whichever occurs later. Table 2 to Paragraph ( g )(2)—Temporary Revisions Applicable airplanes TR Task number and title or life limit part number (P/N) and name Bombardier, Inc., Model CL-600-1A11 (600) airplanes, S/Ns 1004 through 1085 inclusive Bombardier Temporary Revision No. TR 5-164, dated December 23, 2022 53-10-01-102 *, Forward Pressure Bulkhead Cap Angle—Aft Side. Bombardier, Inc., Model CL-600-1A11 (600) airplanes, S/Ns 1004 through 1085 inclusive Bombardier Temporary Revision No. TR 5-165, dated October 25, 2023 B0201102-2-220, Rudder Pedal Potentiometer Coupling Setscrews. Bombardier, Inc., Model CL-600-2A12 (601) airplanes, S/Ns 3001 through 3066 inclusive Bombardier Temporary Revision No. TR 5-268, dated December 23, 2022 53-10-01-103 *, Forward Pressure Bulkhead Cap Angle—Aft Side. Bombardier, Inc., Model CL-600-2A12 (601) airplanes, S/Ns 3001 through 3066 inclusive Bombardier Temporary Revision No. TR 5-269, dated October 25, 2023 B0201102-2-220, Rudder Pedal Potentiometer Coupling Setscrews. Bombardier, Inc., Model CL-600-2B16 (601-3A Variant) airplanes, S/Ns 5001 through 5134 inclusive; and Model CL-600-2B16 (601-3R Variant) airplanes, S/Ns 5135 through 5194 inclusive Bombardier Temporary Revision No. TR 5-282, dated December 23, 2022 53-10-01-103 *, Forward Pressure Bulkhead Cap Angle—Aft Side. Bombardier, Inc., Model CL-600-2B16 (601-3A Variant) airplanes, S/Ns 5001 through 5134 inclusive; and Model CL-600-2B16 (601-3R Variant) airplanes, S/Ns 5135 through 5194 inclusive Bombardier Temporary Revision No. TR 5-283, dated October 25, 2023 B0201102-2-220, Rudder Pedal Potentiometer Coupling Setscrews. Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes, S/Ns 6050 through 6192 inclusive Bombardier Temporary Revision No. 5-2-5, dated October 16, 2023 32-51-04-101 *, Discard of the Nosewheel-Steering Control Potentiometer Coupling Setscrews, Part No. B0201102-2-220 (A/C 6194 and Subs or Post SB 650-32-007). Note 1 to table 2 to paragraph (g)(2): The asterisk (or “one star”) with the last three digits of the task numbers listed in table 2 to paragraph (g)(2) of this AD indicates that the task is an airworthiness limitation task.

This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address new or more restrictive limitations. Failure to comply with these new or more restrictive limitations could adversely affect the continued airworthiness of the airplane.

This AD replaces AD 2025-17-12, Amendment 39-23122 (90 FR 46330, September 26, 2025) (AD 2025-17-12).