AD 2005-17-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
Unsafe Condition
Piccolo tubes manufactured since June 2000 are susceptible to cracking due to the process used to drill the air distribution holes, which may cause air leakage, a possible adverse effect on the anti-ice air distribution pattern and anti-ice capability without annunciation to the flight crew, and consequent reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect to identify the wing anti-ice ducts (piccolo tubes) in the wing leading edge. For airplanes with affected piccolo tubes, revise the airplane flight manual (AFM) to introduce new procedures for operation in icing conditions. Optionally, implement repetitive inspections for cracks of affected piccolo tubes and take corrective actions if necessary. Optionally, install certain new piccolo tubes to terminate both the AFM revision and inspections.
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Compliance Time
Within 30 days of the effective date (September 7, 2005)
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Affected Aircraft
Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes with piccolo tubes manufactured since June 2000. Serial numbers 7417 through 7990 inclusive, and 8000 and subsequent, as specified in the Canadian airworthiness directive, with potential expansion to additional airplanes identified as having affected piccolo tubes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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