EASA Regulations for Airbus Helicopters SA 365 N1

3 airworthiness directives and regulations affecting Airbus Helicopters SA 365 N1.

EASA AD 2022-0256

SUPERSEDED BY EASA AD 2023-0110

EASA Airworthiness Directive 2022-0256 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning SAFRAN Helicopter Engines ARRIEL 1C, 1C1, and 1C2 engines installed on various Airbus Helicopters models including SA 365 C3, SA 365 N, SA 365 N1, and AS 365 N2. The directive addresses a manufacturing non-compliance in certain fire detectors that may cause spurious engine fire warnings. It mandates the replacement of affected fire detectors to ensure continued safe operation.

Dec 19, 2022

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIEL 1Airbus Helicopters SA 365 C3Airbus Helicopters SA 365 NAirbus Helicopters SA 365 N1Airbus Helicopters AS 365 N2

EASA AD 2021-0170

Tail Rotor — Double Bearing — Inspection / Replacement

EASA Airworthiness Directive 2021-0170 is an airworthiness directive addressing inspection and replacement requirements for double bearings with Part Numbers 704A33-651-245 or 704A33-651-246 installed on tail rotor gearboxes (P/N 365A33-6005-09) of Airbus Helicopters AS 365 N2, AS 365 N3, EC 155 B, EC 155 B1, and SA 365 N1 models. The directive mandates repetitive inspections of the tail rotor gearbox chip detector and sets replacement intervals for affected parts to prevent loss of yaw control. It applies to all serial numbers of the specified helicopter models.

Jul 19, 2021

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters SAAirbus Helicopters AS 365Airbus Helicopters EC 155Airbus Helicopters AS 365 N2Airbus Helicopters AS 365 N3Airbus Helicopters EC 155 BAirbus Helicopters EC 155 B1Airbus Helicopters SA 365 N1

EASA AD 2019-0165-E

Tail Rotor Drive — Tail Rotor Gearbox — Inspection / Replacement

EASA Airworthiness Directive 2019-0165-E is an emergency directive addressing the tail rotor gearbox (TGB) inspection and replacement requirements for Airbus Helicopters SA 365 N1, AS 365 N2, AS 365 N3, EC 155 B, and EC 155 B1 models. The directive mandates a one-time inspection of the TGB housing recess and oil duct cover to detect oil retention or foreign objects that could impair lubrication and control. It applies to all serial numbers of the affected helicopter models.

Jul 12, 2019

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters SAAirbus Helicopters AS 365Airbus Helicopters EC 155Airbus Helicopters SA 365 N1Airbus Helicopters AS 365 N2Airbus Helicopters AS 365 N3Airbus Helicopters EC 155 BAirbus Helicopters EC 155 B1