Airworthiness directives › 2024-04-51
AD 2024-04-51 Airworthiness Directives; Pratt & Whitney Canada Corp. Engines
Applicability*9
This AD applies to Pratt & Whitney Canada Corp. Model PT6A-64, PT6A-66, PT6A-66A, PT6A-66B, PT6A-66D, PT6A-67, PT6A-67A, PT6A-67AF, PT6A-67AG, PT6A-67B, PT6A-67D, PT6A-67F, PT6A-67P, PT6A-67R, PT6A-67RM, PT6A-67T, PT6A-68, PT6A-68D, PT6E-67XP, and PT6E-66XT engines.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada Emergency AD CF-2024-05, dated February 15, 2024 (Transport Canada Emergency AD CF-2024-05).
Unsafe condition
This AD was prompted by reports from the manufacturer of the failure of second-stage power turbine (PT2) blades. The FAA is issuing this AD to prevent the failure of PT2 blades. The unsafe condition, if not addressed, could result in engine power loss or engine in-flight shut down, resulting in consequent emergency landing or reduced control of the airplane.
Affected ADs
None.
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