AD 2013-15-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Canada Corp | Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines |
Unsafe Condition
Fractures of the first-stage power turbine (PT) blade due to undetected shrinkage porosity of unacceptable levels within the blade casting.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the first-stage PT blades using the specified X-ray method or replace them with blades eligible for installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 months after the effective date of the AD or when the affected PT blades are at module level exposure, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney Canada Corp. PW118A, PW118B, PW119B, PW119C, PW123, PW123B, PW123C, PW123D, PW123E, PW123AF, PW124B, PW125B, PW126A, PW127, PW127E, PW127F, PW127G, and PW127M turboprop engines with specific first-stage PT blades installed, as listed in Table 1 of P&WC Service Bulletin No. PW100-72-21823, Revision 3.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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