AD 2009-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
Unsafe Condition
Excessive wear of the ball screw and ball nut of certain inboard flap actuators could potentially lead to a flap system jam, resulting in a skewed flap condition and reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the ball screw and ball nut of the inboard flap actuators to detect and correct unacceptable wear. Revise the Maintenance Requirements Manual (MRM) to include a new CMR task C27-50-300-01.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 500 flight hours after the effective date of the AD.
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Affected Aircraft
Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes with Bombardier Part Number 601R93101-19 and Eaton Part Number 852D100-19 inboard flap actuators.
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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