EASA Regulations for Airbus Helicopters AS355 NP

2 airworthiness directives and regulations affecting Airbus Helicopters AS355 NP.

EASA AD 2022-0005

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2022-0005 is an amendment addressing the time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 1A1 engines. These engines are commonly installed on Airbus Helicopters AS355 NP twin-engine helicopters. The directive mandates compliance with updated maintenance tasks and life limits to ensure continued airworthiness.

Jan 11, 2022

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS355 NP

EASA AD 2019-0266-E

Engine — Module 02 / Gas Generator — Service Life Calculation / Replacement

EASA Airworthiness Directive 2019-0266-E is an emergency directive addressing Safran Helicopter Engines ARRIUS 1A and 1A1 engines installed on helicopters such as the Airbus Helicopters AS355 N and AS355 NP. It mandates recalculating the service life of the gas generator module M02 due to a manufacturing non-conformity affecting high-pressure turbine blades and discs. The directive ensures continued airworthiness by requiring replacement of affected parts based on recalculated service life limits.

Oct 25, 2019

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS355 NAirbus Helicopters AS355 NP