Airworthiness Directives; Bombardier, Inc., Airplanes
Published Date: 7/14/2026
Rule
Summary
The FAA is updating safety rules for certain Bombardier airplanes, including some new models that weren’t covered before. Owners must follow stricter maintenance checks to keep their planes safe, starting August 18, 2026. These changes help prevent problems but might mean a bit more work and cost for operators.
Analyzed Economic Effects
5 provisions identified: 1 benefits, 4 costs, 0 mixed.
Operators Must Update Maintenance Programs
If you operate affected Bombardier CL-600/601/604/605/650 airplanes, you must revise your maintenance or inspection program to incorporate the specified Bombardier Time Limits/Maintenance Checks (TLMC) sections and listed temporary revisions (TRs). For many airplanes the deadline is within 90 days after October 31, 2025; for others the deadline is within 90 days after the AD effective date of August 18, 2026. After revising the program, you may not use alternative actions or intervals unless an Alternative Method of Compliance (AMOC) is approved.
Estimated Compliance Cost Per Operator and Industry
The FAA estimates the cost to comply is $7,650 per operator (90 work-hours × $85/hour). The AD affects 573 U.S.-registered airplanes and 390 operators, with a total estimated industry cost of $2,983,500.
More Bombardier Planes Covered by AD
This AD expands which Bombardier airplanes are covered: it applies to all CL-600-1A11 (600), CL-600-2A12 (601), CL-600-2B16 (601-3A and 601-3R) airplanes and to CL-600-2B16 (604 Variant) airplanes with S/Ns 5301–5665, 5701–6049, and 6050–6192. Owners/operators of those serial-numbered airplanes must comply with the AD requirements.
FAA: No Reporting or Downtime Expected
The FAA states this AD does not require reporting and that revising the maintenance or inspection program is an administrative action that can be done without causing airplane downtime, logistical constraints, or supply-chain risks.
Special 12-Year HSTA Inspection Timing
For CL-600-2B16 (604 Variant) airplanes in paragraph (c)(2), the initial compliance time for task 27-42-01-110 (Special Detailed Inspection of the Horizontal Stabilizer Trim Actuator (HSTA)) is either within 12 years after accomplishing certain part replacements per AD 2015-05-07 or within 12 years from the part entry into service for HSTA parts manufactured before November 1, 2015.
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Key Dates
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