AD 2010-09-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) Airplanes |
Unsafe Condition
Sustained oscillations were discovered during an elevator Power Control Unit (PCU) Centering Functional Check when a control rod was disconnected. These oscillations could render the elevator surface inoperable and cause subsequent loss of pitch control of the aircraft.
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Required Actions
Install a new PCU centering mechanism on the elevator torque tube, in accordance with Bombardier Service Bulletin 670BA-27-042, Revision C, dated December 10, 2009. Compliance must be completed within 6,000 flight hours after the effective date of this AD.
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Compliance Time
Within 6,000 flight hours after the effective date of this AD.
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Affected Aircraft
Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes with serial numbers 10003 through 10259 inclusive, and Model CL-600-2D15 (Regional Jet Series 705) and Model CL-600-2D24 (Regional Jet Series 900) airplanes with serial numbers 15001 through 15099 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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