Airworthiness Directive · Amendment 39-23122 · Time limits/maintenance checks
Bombardier, Inc., Airplanes
Superseded. A later AD replaced this one: AD 2026-14-09. Comply with the one in force.
This AD applies to the Bombardier, Inc., airplanes identified in paragraphs (c)(1) and (2) 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 6050 through 6192 inclusive.
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-1A11 (600) and CL-600-2A12 (601) airplanes, and certain Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
(1) Within 90 days after the effective date of this AD, 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 the effective date of this AD, whichever occurs later, except as provided by paragraph (h) of this AD.
(2) Within 90 days after the effective date of this AD, 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 the effective date of this AD, whichever occurs later.
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.
For Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes, S/Ns 5301 through 5665 inclusive and S/Ns 5701 through 6049 inclusive: The initial compliance time for task 27-42-01-110, “Special Detailed Inspection of the Horizontal Stabilizer Trim Actuator (HSTA), P/N 604-92305-7 and Subs (Vendor P/N 8454-3 and Subs),” of section 5-10-40, “Certification Maintenance Requirements,” of Part 2, “Airworthiness Limitations,” of Bombardier Challenger 604 TLMC, Publication No. CH 604 TLMC, Revision 33, dated November 22, 2022; or Bombardier Challenger 605 TLMC, Publication No. CH 605 TLMC, Revision 22, dated November 22, 2022; as applicable, is at the applicable compliance time specified in paragraph (h)(1) or (2) of this AD, or within 90 days after the effective date of this AD, whichever occurs later.
(1) For HSTA having P/N 604-92305-3 (vendor P/N 8454-1) or P/N 604-92305-5 (vendor P/N 8454-2) that were replaced with P/N 604-92305-7 (vendor P/N 8454-3) in accordance with paragraph (j) of AD 2015-05-07, Amendment 39-18117 (80 FR 13483, March 16, 2015): Within 12 years after accomplishing the replacement.
(2) For HSTA having P/N 604-92305-7 (vendor P/N 8454-3) manufactured before November 1, 2015: Within 12 years from the part entry into service.
After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j)(1) of this AD.
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD and email to: AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or Bombardier's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature.
For more information about this AD, contact Brenda L. Buitrago, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516-228 7300; email: 9-avs-nyaco-cos@faa.gov.
