AD 2015-17-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop Engines |
Unsafe Condition
Certain gas generator turbine (GGT) blades, part number M601-3372.6 or M601-3372.51, are susceptible to blade failure due to reduced fatigue life.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service any affected engine with GGT blades P/N M601-3372.6 or M601-3372.51 installed after 300 hours time in service or six months, whichever occurs first, after the effective date of this AD. Disassembled or overhauled non-shot peened GGT blades are not eligible for installation in any other engine after removal.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 300 hours time in service or six months, whichever occurs first, after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
GE Aviation Czech s.r.o. M601E-11, M601E-11A, and M601F turboprop engines with serial numbers listed in the AD, and with gas generator turbine (GGT) blades, part number M601-3372.6 or M601-3372.51, installed.
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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