EASA Regulations for Pratt & Whitney Canada PW100

EASA AD CF-2024-04

Turboprop Engine — Overspeed Governor Hydraulic Pump — Malfunction of Pressure Relief Valve

Canadian Airworthiness Directive CF-2024-04 addresses a malfunction in the overspeed governor hydraulic pump pressure relief valve on Pratt & Whitney Canada PW100 series turboprop engines, including models PW118 through PW124B. The directive mandates removal of affected pressure relief valves to prevent propeller pitch-lock conditions that can cause propeller overspeed and potential control difficulties. This AD applies to specific serial numbers of the pressure relief valves identified in the directive.