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Airworthiness Directive 2025-19784

recurring
AD 2025-19784 · 2025-11-05 · airframe

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain MHI RJ Aviation ULC (type certificate previously held by Bombardier, Inc.) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports of loose and missing bolts on the horizontal stabilizer (H-stab) anti- yaw steady fitting block. This AD requires repetitive torque checks of the H-stab anti-yaw steady fitting block bolts. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 2200 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2025-19784 applies to

MakesMhi Rj Aviation UlcBombardier, Inc.
ModelsCL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, CL-600-2E25, CL-600

Type certificate previously held by Bombardier, Inc. Applicability determined by aircraft identified in Transport Canada AD CF-2025-38, effective August 19, 2025. Model designations correspond to marketing series: CL-600-2C10 = Regional Jet Series 700, 701 & 702; CL-600-2C11 = Regional Jet Series 550; CL-600-2D15 = Regional Jet Series 705; CL-600-2D24 = Regional Jet Series 900; CL-600-2E25 = Regional Jet Series 1000.

Whether AD 2025-19784 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2025-19784 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.