AD Amdt-39-9288
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Canada Model PT6A-67D | Airworthiness Directives; Pratt & Whitney Canada Model PT6A-67D Turboprop Engines |
Unsafe Condition
Cracking and other irregularities in the compressor turbine disk and blades, and aircraft handling problems due to engine RPM restrictions imposed by the previous AD requirements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the cockpit placard restricting engine operation above 94.0% and below 97.1% N1, remove the amendment to the Beech Model 1900D AFM related to the RPM restriction, and ensure installation of improved engine components including CT stator assembly, CT shroud housing, CT turbine blades, feather seals, and small exit duct assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney Canada PT6A-67D turboprop engines installed on Beech Model 1900D airplanes as specified in the existing AD.
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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