AD 2003-11-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
Unsafe Condition
Temporary loss of braking action upon landing due to the freezing of moisture on the input plunger of the brake control valve during steep descent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the brake control valve assembly to terminate repetitive lubrications. Install grease fittings during the modification. Perform subsequent repetitive lubrications of the valve using the installed grease fittings at intervals not to exceed 1,500 flight hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months of the effective date (July 11, 2003).
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Affected Aircraft
Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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