EASA Regulations for Pratt & Whitney Canada PW100

2 airworthiness directives and regulations affecting 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.

Feb 22, 2024

Airworthiness DirectiveMaintenanceSafety MgmtPratt & Whitney Canada PW100

EASA AD CF-2019-32

Engine — High Pressure Turbine Rear Cover Life Limitation Reduction

Canadian Airworthiness Directive CF-2019-32 addresses the life limitation reduction of the High Pressure Turbine (HPT) rear cover on Pratt & Whitney Canada model PW127G engines. This directive mandates compliance with updated low cycle fatigue life values for specific HPT rear cover parts, identified as P/Ns 3039639 and 3078516-01. The directive aims to ensure continued airworthiness by preventing engine and potential aircraft damage due to part failure.

Sep 25, 2019

Airworthiness DirectiveMaintenanceSafety MgmtPratt & Whitney Canada PW100