AD 2010-18-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); Model CL-600-2D15 (Regional Jet Series 705); and Model 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); Model CL-600-2D15 (Regional Jet Series 705); and Model CL-600-2D24 (Regional Jet Series 900) Airplanes |
Unsafe Condition
Some horizontal stabilizer trim actuators (HSTAs) were assembled with incorrect load bearing balls, which have lower wear characteristics and a shorter expected life. If not corrected, this can result in HSTA jamming, leading to difficulties in controlling the aircraft.
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Required Actions
Inspect HSTAs with part numbers 8489-7 and 8489-7R to determine if the serial numbers identified in Bombardier Service Bulletin 670BA-27-057 are installed. A review of airplane maintenance records is acceptable in lieu of physical inspection.
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Compliance Time
Within 500 flight cycles 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), Model CL-600-2D15 (Regional Jet Series 705), and Model CL-600-2D24 (Regional Jet Series 900) airplanes, certificated in any category, having horizontal stabilizer trim actuators (HSTAs) with part numbers 8489-7 or 8489-7R.
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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