AD 2013-03-21
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Canada Corp | Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft Engines |
Unsafe Condition
Certain power turbine (PT) disks, part number (P/N) 3044188-01, made to specific heat codes may not achieve the established maximum in-service life when installed in Turbomachinery Assembly P/N 3058588.
Required Actions
Remove the PT disk P/N 3044188-01 from service before it reaches 10,000 cycles-since-new (CSN), re-identify the PT disk to P/N 3072542-01, and retain the total cycles accumulated as P/N 3044188-01.
Compliance Time
Before 10,000 CSN
Affected Aircraft
Pratt & Whitney Canada Corp. model PW206B, PW206B2, PW206C, PW207C, PW207D, PW207D1, PW207D2, and PW207E turboshaft engines.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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