Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe Chafing
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform an initial endoscope inspection of the reactive exhaust pipe and sealing joint within 8800 flight hours from February 19, 2026, following the procedures in MHIRJ Service Bulletin 670BA-30-026 Revision B or later. If inspection criteria are not met, replacement of the parts is required. Periodic inspections must continue every 8800 flight hours thereafter. Additionally, installation of certain engine cowl inlet assemblies as replacement parts is prohibited unless inspected and confirmed compliant.
Summary
The Canadian Airworthiness Directive CF-2026-09R1 addresses ice and rain protection specifically concerning engine cowl anti-ice systems on MHI RJ Aviation ULC aircraft models CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, and CL-600-2E25. It mandates inspections and potential replacements of the reactive exhaust pipe and sealing joint to prevent damage caused by chafing, which could lead to ice accumulation, engine ingestion of ice, and engine shutdown.
What changed
CF-2026-09R1 revises the wording of Part IV of the original directive CF-2026-09 to clarify the prohibition on installing certain engine cowl inlet assemblies as replacement parts if they have exceeded 8800 flight hours without inspection. The amendment maintains all other requirements from the original directive, including mandatory endoscope inspections and replacement procedures.
Why it matters
This directive is critical for operators and maintenance organizations to prevent undetected damage to the engine cowl anti-ice system that could compromise flight safety through ice buildup and engine failure. Compliance ensures continued airworthiness and reduces the risk of in-service failures related to the reactive exhaust pipe and sealing joint. It also standardizes inspection intervals and replacement criteria for affected aircraft.
More for MHI RJ Aviation CL-600 (Regional Jet)
All 84- EASA AD CF-2026-48Pneumatic – 10th and 14th Stage Bleed Duct Damaged or Missing InsulationOct 7, 2026
- EASA AD CF-2026-43Ice and Rain Protection – Wing Anti-Ice – Aircraft Flight Manual Procedure Anomaly - AmendmentSep 11, 2026
- EASA AD CF-2026-09R2Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe ChafingAug 5, 2026
- EASA AD CF-2026-07R1Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe ChafingJun 22, 2026
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