AD 88-19-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-600-2B16 (CL-601-3A) | Airworthiness Directives; CANADAIR Model CL-600-2B16 Series Airplanes |
| aircraft | Bombardier Inc. | CL-600-2B16 (CL-601-3R) | Airworthiness Directives; CANADAIR Model CL-600-2B16 Series Airplanes |
| aircraft | Bombardier Inc. | CL-600-2B16 (CL-604) | Airworthiness Directives; CANADAIR Model CL-600-2B16 Series Airplanes |
Unsafe Condition
Erroneous autopilot/flight director ILS operations could occur.
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Required Actions
Insert a statement in the AFM's Limitations Section prohibiting flight director approaches and autopilot coupled approaches without a valid radio altimeter, install a cockpit placard with the same prohibition, and install Sperry/Honeywell Flight Guidance Computer P/N 7003974-715 to terminate prior requirements.
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Compliance Time
Within 48 hours after the effective date of this AD
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Affected Aircraft
Bombardier Inc. Model CL-600-2B16 series airplanes, Serial Numbers 5002 through 5027
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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