RegNotify

EASA Regulations for Leonardo S.P.A. Helicopters AB139

43 airworthiness directives and regulations affecting Leonardo S.P.A. Helicopters AB139.

EASA AD 2021-0259

[Correction] Fuselage — Tail Gearbox Fitting — Inspection / Replacement

EASA Airworthiness Directive 2021-0259 is a safety directive addressing the inspection and possible replacement of tail gearbox (TGB) fittings, part numbers 3G5351A01151 and 3G5351A01152, on Leonardo AB139 and AW139 helicopters. The directive mandates a one-time borescope inspection of the affected TGB fittings to detect cracks that could compromise helicopter control. It applies to all serial numbers of the specified helicopter models.

Nov 22, 2021
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2021-0186R1

[Correction] Equipment / Furnishings — External Hoist Assembly — Rated Load Check

EASA Airworthiness Directive 2021-0186R1 is a correction to the emergency AD addressing the rated load check (RTC) requirement for Breeze external hoist assemblies installed on Leonardo AB139 and AW139 helicopters. It applies to specific Breeze hoist assembly part numbers, particularly those with replaced hoist cables or stored over 12 months. The AD mandates a one-time RTC to ensure the integrity and safe operation of the hoist assemblies.

Aug 23, 2021
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2021-0121

Main Rotor Drive — Main Gearbox Bearing Lock Nut — Replacement

EASA Airworthiness Directive 2021-0121 is an airworthiness directive addressing the replacement of main gearbox (MGB) bearing lock nuts on Leonardo AB139 and AW139 helicopters. It applies to all serial numbers of these helicopter models with specific affected MGB part numbers. The directive mandates replacing the cracked or potentially cracked bearing lock nut P/N 3G6320A09151 with an improved design P/N 3G6320A09152 to ensure continued safe operation.

May 4, 2021
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2021-0095

SUPERSEDED BY EASA AD 2023-0088

EASA Airworthiness Directive 2021-0095 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting AB139 and AW139 helicopters modified with Aerolite AG's 3-Stretcher Kit Part Number 139084-501. The directive addresses a design deficiency in the primary stretcher unit Part Number 002095-502 installed by the Aerolite Supplemental Type Certificate 10017231. It mandates the installation of a placard indicating a weight limit on the primary stretcher to ensure safe operation.

Mar 31, 2021
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139AgustaWestland AB139AgustaWestland AW139

EASA AD 2021-0054

Equipment / Furnishings — Life Raft Reservoir and Actuator Cable — Replacement / Inspection

EASA Airworthiness Directive 2021-0054 addresses safety concerns for Leonardo S.p.A. AB139 and AW139 helicopters equipped with emergency flotation kits having specific life raft reservoir part numbers. The directive mandates replacement and inspection of certain life raft reservoirs and actuator cables to prevent inadvertent activation and deployment of the emergency life raft during flight. It applies to helicopters with affected reservoirs identified by serial numbers in Leonardo Alert Service Bulletins 139-648 and 139-662.

Feb 25, 2021
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2020-0271

Main Rotor — Swashplate Boot — Inspection

EASA Airworthiness Directive 2020-0271 is an airworthiness directive addressing the inspection of the main rotor swashplate boot on Leonardo S.p.A. AB139, AW139, and AW189 helicopters. It focuses on the inspection and maintenance of the affected main rotor swashplate boot, specifically part number 3G6230V00251, to prevent in-flight failure of the external stainless steel rings bonded to the boot. The directive applies to all serial numbers of these helicopter models.

Dec 8, 2020
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo S.P.A. Helicopters AW189Leonardo AB139Leonardo AW139Leonardo AW189

EASA AD 2020-0011R1

SUPERSEDED BY EASA AD 2021-0121

EASA Airworthiness Directive 2020-0011R1 is an amendment addressing the main gearbox (MGB) bearing lock nut issue on Leonardo S.p.A. AB139 and AW139 helicopters. It mandates replacing the cracked MGB bearing lock nut part number 3G6320A09151 with an improved lock nut part number 3G6320A09152 to prevent potential failure of the MGB planetary gears. The directive applies to all serial numbers of these helicopter models and specifies affected MGB part numbers.

Nov 20, 2020
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2020-0185

SUPERSEDED BY EASA AD 2021-0054

EASA Airworthiness Directive 2020-0185 is issued for Leonardo S.p.A. AB139 and AW139 helicopters equipped with specific emergency flotation kits. It addresses the risk of inadvertent activation and deployment of the emergency life raft during flight due to issues with certain life raft reservoirs and actuator cables. The directive mandates inspections and replacements to ensure continued airworthiness and flight safety.

Aug 19, 2020
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2020-0131

Equipment / Furnishings — Hoist Cable Cutter Frame — Modification

EASA Airworthiness Directive 2020-0131 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Leonardo S.p.A. AB139 and AW139 helicopters. It addresses the hoist cable cutter frame installed on single and double hoist control panels with specific part numbers. The directive mandates a modification to prevent inadvertent activation of the hoist cable cutter during night operations.

Jun 5, 2020
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2020-0013

Fire Protection — Hand-held Fire Extinguishers — Replacement

EASA Airworthiness Directive 2020-0013 is an airworthiness directive addressing fire protection on various Airbus Helicopters, Leonardo, and WSK PZL – ŚWIDNIK helicopter models. It specifically targets the replacement of certain umlaut engineering GmbH Halon-free hand-held fire extinguishers with manufacturing defects that could render them inoperative. The affected helicopter models include AS 332, AS 365, EC 155, EC 175, EC 225, SA 330, SA 365, EC135, EC635, MBB-BK117, AB139, AB 204, AB 205, AB 212, AB 412, AS-61, AW139, AW169, AW189, and PZL W-3A series helicopters.

Jan 29, 2020
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters EC175Airbus Helicopters SA 330Airbus Helicopters AS 332Airbus Helicopters EC 225Airbus Helicopters SAAirbus Helicopters AS 365Airbus Helicopters EC 155Airbus Helicopters EC135Airbus Helicopters 635Airbus Helicopters MBB-BK 117Leonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo S.P.A. Helicopters AB204Leonardo S.P.A. Helicopters AB205Leonardo S.P.A. Helicopters AB212Leonardo S.P.A. Helicopters AB412Leonardo S.P.A. Helicopters AS-61Leonardo S.P.A. Helicopters AW169Leonardo S.P.A. Helicopters AW189Wsk Pzl-Swidnik PZL W-3AAirbus Helicopters EC 175Airbus Helicopters SA 365Airbus Helicopters EC635Airbus Helicopters MBB-BK117Leonardo AB139Leonardo AB 204Leonardo AB 205Leonardo AB 212Leonardo AB 412Leonardo AS-61Leonardo AW139Leonardo AW169Leonardo AW189WSK PZL – ŚWIDNIK PZL W-3A

EASA AD 2019-0311

Equipment / Furnishings — Emergency Flotation System Inflation Hoses — Inspection

EASA Airworthiness Directive 2019-0311 is a regulatory document addressing the inspection of Emergency Flotation System (EFS) inflation hoses on Leonardo S.p.A. AB139, AW139, AB412, and AB412EP helicopters. The directive targets specific part numbers of EFS semi-rigid cover assemblies to ensure proper inflation during ditching events. It mandates inspections to detect manufacturing defects that could block gas flow to flotation compartments.

Dec 19, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo S.P.A. Helicopters AB212Leonardo S.P.A. Helicopters AB412Leonardo AB139Leonardo AW139Leonardo AB412Leonardo AB412EP

EASA AD 2019-0174

SUPERSEDED BY EASA AD 2020-0011

EASA Airworthiness Directive 2019-0174 is an airworthiness directive issued for Leonardo S.p.A. AB139 and AW139 helicopters. It addresses the replacement of the main gearbox (MGB) bearing lock-nut part number 3G6320A09151 to prevent potential failure of the MGB planetary gears. This directive applies to all serial numbers of AB139 and AW139 helicopters equipped with affected main gearboxes.

Jul 18, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2019-0149

Powerplant — Engine Mounting Rods — Replacement

EASA Airworthiness Directive 2019-0149 is an official safety directive addressing the replacement of engine mounting rods, part number 3G7120V00132, on Leonardo S.p.A. AB139 and AW139 helicopters. This directive applies to all serial numbers of these helicopter models and mandates the removal and replacement of affected engine mounting rods due to a production non-conformity. The directive ensures continued airworthiness and safety by preventing potential rod failure.

Jun 24, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2019-0073

Tail Rotor — Full Ice Protection System Tail Rotor Blades — Inspection / Replacement

EASA Airworthiness Directive 2019-0073 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Leonardo S.p.A. AB139 and AW139 helicopters equipped with the Full Ice Protection System (FIPS). It addresses inspection and replacement requirements for specific tail rotor blades with part numbers 4G6410A00131, 4G6410A00132, and 4G6410A00133. The directive aims to ensure the continued airworthiness of these helicopters by mitigating risks related to tail rotor blade damage.

Mar 28, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2019-0036

SUPERSEDED BY EASA AD 2019-0174

EASA Airworthiness Directive 2019-0036 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Leonardo S.p.A. AB139 and AW139 helicopters. It addresses the replacement of the main gearbox bearing lock-nut part number 3G6320A09151 to prevent potential failure of the main gearbox planetary gears. This directive applies to all serial numbers of the AB139 and AW139 helicopter models.

Feb 15, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2019-0022

[Correction] Tail Rotor — Duplex Bearings — Replacement

EASA Airworthiness Directive 2019-0022 is a corrective directive addressing the replacement of tail rotor duplex bearings on Leonardo S.p.A. AB139, AW139, AW169, and AW189 helicopters. The directive targets specific part numbers and serial numbers of tail rotor duplex bearings identified as potentially defective due to a quality non-conformity. It mandates replacement of affected bearings to ensure continued airworthiness and safe operation of the helicopters.

Feb 4, 2019
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo S.P.A. Helicopters AW169Leonardo S.P.A. Helicopters AW189Leonardo AB139Leonardo AW139Leonardo AW169Leonardo AW189

EASA AD 2018-0292

Tail Rotor — Tail Rotor Slider Assembly — Inspection

EASA Airworthiness Directive 2018-0292 is an airworthiness directive addressing the inspection of the tail rotor slider assembly, Part Number 3G6430A00131, on Leonardo S.p.A. AB139 and AW139 helicopters. It mandates a one-time detailed visual inspection for corrosion and damage, with possible repetitive inspections or replacement depending on findings. The directive aims to prevent potential failure of the tail rotor controls due to fatigue cracks caused by corrosion.

Dec 28, 2018
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2018-0208

Emergency Flotation System — Aft Float Assembly Inflation System — Removal / Installation

EASA Airworthiness Directive 2018-0208 addresses the emergency flotation system aft float assembly inflation system on Leonardo S.p.A. AB139, AW139, AW169, and AW189 helicopters. It applies to specific part numbers of the Shape Memory Alloy inflation systems installed on these helicopters. The directive mandates removal and replacement of affected parts to prevent uncommanded deployment of the emergency flotation system.

Sep 20, 2018
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo S.P.A. Helicopters AW169Leonardo S.P.A. Helicopters AW189Leonardo AB139Leonardo AW139Leonardo AW169Leonardo AW189

EASA AD 2018-0132

SUPERSEDED BY EASA AD 2026-0003

EASA Airworthiness Directive 2018-0132 is an airworthiness directive issued by the European Aviation Safety Agency affecting Leonardo S.p.A. AB139 and AW139 helicopters. It mandates compliance with updated airworthiness limitations and maintenance tasks as specified in Leonardo's Maintenance Manual, issue 9, to ensure continued airworthiness of these helicopter models.

Jun 21, 2018
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139

EASA AD 2018-0130

Main Rotor — Main Rotor Blades — Inspection

EASA Airworthiness Directive 2018-0130 is an airworthiness directive addressing the inspection of main rotor blades on Leonardo S.p.A. AB139 and AW139 helicopters. It mandates repetitive hammer tapping inspections of specific main rotor blades with part number 3G6210A00131 due to potential bonding defects in the tip cap. The directive applies to all serial numbers of these helicopters and aims to prevent in-flight loss of the rotor blade tip cap.

Jun 18, 2018
Airworthiness DirectiveMaintenanceSafety MgmtLeonardo S.P.A. Helicopters AB139Leonardo S.P.A. Helicopters AW139Leonardo AB139Leonardo AW139