Ice and Rain Protection — Wing Anti-Ice System — Piccolo Duct Holes Not Conforming to Drawing Requirements
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected MHI RJ Aviation ULC CL-600-2C10, CL-600-2C11, and CL-600-2D24 aircraft must inspect piccolo duct assemblies within 8800 flight hours from 2020-07-08. Any non-conforming parts must be removed and replaced following MHIRJ Service Bulletin 670BA-30-25 or later approved revisions. Compliance with these actions is mandatory to continue legal flight operations.
Summary
Canadian Airworthiness Directive CF-2020-23 addresses non-conforming piccolo duct holes in the wing anti-ice system of MHI RJ Aviation ULC aircraft models CL-600-2C10, CL-600-2C11, and CL-600-2D24. The directive identifies specific serial numbers affected by manufacturing deviations in piccolo duct bleed holes that could impair wing anti-ice protection. This AD mandates inspection and replacement of affected piccolo duct assemblies to ensure continued airworthiness.
What changed
CF-2020-23 introduces a new requirement for inspecting piccolo duct assemblies installed on certain MHI RJ Aviation ULC aircraft due to discovered manufacturing non-conformances. It requires removal and replacement of ducts with undersized holes, un-burred holes, or hole pattern deviations. This is a newly issued directive rather than an amendment to a previous AD.
Why it matters
This directive is critical for operators and maintenance organizations because non-conforming piccolo ducts can degrade wing anti-ice performance, potentially affecting aircraft handling during critical flight phases. Compliance ensures the reliability of ice protection systems and helps maintain safe flight operations. It also provides clear instructions for corrective actions to maintain regulatory compliance.
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-2026-09R1Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe ChafingJun 22, 2026
- EASA AD CF-2026-07R1
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New ADs and bulletins for MHI RJ Aviation CL-600 (Regional Jet), RJ Aviation ULC CL-600-2C10, RJ Aviation ULC CL-600-2C11 and RJ Aviation ULC CL-600-2D24, summarized like this page, every Monday.