AD 2010-23-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | General | Electric Company (GE) CT7-9C and -9C3 Turboprop | Airworthiness Directives; General Electric Company (GE) CT7-9C and -9C3 Turboprop Engines |
Unsafe Condition
Nonconforming land balance-cuts on gas generator turbine (GGT) shafts, part number 6068T44P02, could result in the shaft failing before its published life limit, leading to an uncontained engine failure and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the GGT shafts listed in Table 1 for nonconforming land balance-cuts using GE CT7-TP Alert Service Bulletin 72-A0501, Revision 01. If nonconforming cuts are found, remove the shaft from service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At the first shop visit after the effective date of this AD, or within 5,000 cycles since-new, whichever occurs first.
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Affected Aircraft
General Electric Company CT7-9C and -9C3 turboprop engines with gas generator turbine (GGT) shafts, part number 6068T44P02, and serial numbers listed in Table 1 of the AD. These engines are installed on, but not limited to, EADS CASA CN-235 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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