AD 2010-23-11
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
Resolver stators installed in angle of attack (AOA) transducers were not cleaned correctly, degrading transducer performance at low temperatures and causing freezing of the resolver. This may provide inaccurate AOA data to the Stall Protection System (SPS), resulting in early or late activation of the stick shaker and/or stick pusher.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the serial number of each AOA transducer having part number C16258AA to determine if it is listed in Bombardier Alert Service Bulletin A670BA-27-054, Revision A. If the serial number is listed and does not have the suffix 'C', replace the AOA transducer with a new or serviceable one before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 750 flight hours after the effective date of the AD for the inspection; before further flight for replacement of affected transducers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
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, equipped with Thales angle of attack transducers having part number C16258AA.
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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