EASA Regulations & Airworthiness Directives

Browse 5,158 EASA regulations with AI-powered summaries.

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EASA AD 2019-0236R2

May 7, 2021

Landing Gear — Main Landing Gear Bush — Inspection

EASA Airworthiness Directive 2019-0236R2 is an updated regulatory requirement addressing the inspection of the main landing gear bush, part number D61002, on ATR 72 series aeroplanes. It applies to all manufacturer serial numbers of ATR 72-101, -102, -201, -202, -211, -212, and -212A models. The directive mandates inspections to detect incorrect installation of the main landing gear bush, which could lead to structural failure and landing gear collapse.

Airworthiness Directive
  • ATR ATR72
  • ATR 72-101
  • ATR 72-102
  • ATR 72-201
  • ATR 72-202
  • ATR 72-211
  • ATR 72-212
  • ATR 72-212A

EASA AD CF-2015-16R3

May 7, 2021

Tail Rotor - Pitch Link Spherical Bearing Accelerated Wear

Canadian Airworthiness Directive CF-2015-16R3 addresses accelerated wear of tail rotor pitch link spherical bearings on Bell Helicopter Textron Canada Limited model 429 helicopters, serial numbers 57001 through 57401. The directive mandates inspections, replacements, and introduces a new pitch link assembly as an optional terminating action to recurring inspections. It aims to prevent pitch link failure that could lead to loss of helicopter controllability.

Airworthiness Directive
  • Bell 429
  • Bell Helicopter Textron Canada Limited 429

EASA AD US-2021-09-06

May 6, 2021

Superseded by FAA AD 2025-07-03

FAA Airworthiness Directive 2021-09-06 is a final rule superseding AD 2019-22-10 and applies to all Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It addresses cracking issues in the left- and right-hand side outboard chords of frame fittings and failsafe straps near station 663.75. The directive mandates repetitive inspections and repairs to ensure structural integrity and safety.

Airworthiness Directive
  • Boeing 737600700700C800900900ER

EASA AD 2021-0122

May 6, 2021

Time Limits / Maintenance Checks — Airworthiness Limitation Section — Tension Torsion Straps — Storage Life Limit

EASA Airworthiness Directive 2021-0122 addresses the storage life limits of Tension Torsion (TT) Straps installed on Airbus Helicopters Deutschland GmbH MBB-BK117 helicopter models including A-1, A-3, A-4, B-1, B-2, C-1, C-2, and D-2. The directive focuses on the ageing of elastomeric materials in Bendix and Lord TT-Straps, which may compromise structural integrity and helicopter control. It mandates compliance with storage life limits and removal of certain Bendix TT-Straps to ensure continued airworthiness.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 A-1
  • Airbus Helicopters MBB-BK117 A-3
  • Airbus Helicopters MBB-BK117 A-4
  • Airbus Helicopters MBB-BK117 B-1
  • Airbus Helicopters MBB-BK117 B-2
  • Airbus Helicopters MBB-BK117 C-1
  • Airbus Helicopters MBB-BK117 C-2
  • Airbus Helicopters MBB-BK117 D-2

EASA AD 2021-0121

May 4, 2021

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.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB139
  • Leonardo S.P.A. Helicopters AW139
  • Leonardo AB139
  • Leonardo AW139

EASA AD 2021-0120-E

May 3, 2021

Electrical Power – Cockpit Display Systems – Tests; Aircraft Flight Manual / Master Minimum Equipment List – Amendment

EASA Airworthiness Directive 2021-0120-E is an emergency directive addressing safety issues on ATR 42-500 and ATR 72-212A aeroplanes equipped with ATR modification 05948 (the '-600 version'). It mandates amendments to the Aircraft Flight Manual and Master Minimum Equipment List, and requires operational and electrical tests on specific electrical components related to cockpit display systems. The directive aims to prevent loss of all display units and the Integrated Electronic Standby Instrument due to potential faults in the battery toggle switch and contactor.

Airworthiness DirectiveSuperseded
  • ATR ATR42
  • ATR ATR72
  • ATR 42-500
  • ATR 72-212A

EASA AD 2021-0119

Apr 30, 2021

Flight Controls — Trim Tab Trailing Edge — Inspection

EASA Airworthiness Directive 2021-0119 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Costruzioni Aeronautiche TECNAM SPA P2012 "Traveller" aeroplanes with manufacturer serial numbers 002 to 030 inclusive. The directive mandates inspections of the trim tab trailing edge on the mechanical trim actuator assembly, part number 212-27-30-0410-000, to detect and correct free play that could cause vibrations and reduced control of the aircraft.

Airworthiness Directive
  • Tecnam P2012 (Traveller)
  • Costruzioni Aeronautiche TECNAM SPA P2012

EASA AD US-2021-09-08

Apr 30, 2021

Flight Deck Metallic Support Panel Assemblies - Modifications

The Federal Aviation Administration's Airworthiness Directive 2021-09-08 addresses certain Boeing 737-8 and 737-9 airplanes. It mandates modifications to the electrical bonding of metallic support panel assemblies in the flight deck to ensure proper electrical grounding of installed equipment. This directive responds to design changes that caused insufficient electrical bonding and grounding, posing safety risks.

Airworthiness Directive
  • Boeing 73789

EASA SIB 2012-09R1

Apr 28, 2021

Effects of Space Weather on Aviation

EASA Safety Information Bulletin 2012-09R1 provides updated information on the effects of space weather on aviation, including impacts on aircraft, avionics, communication, navigation, surveillance systems, and human health. It applies to all aircraft operations, Air Traffic Management/Air Navigation Services, and aerodrome operations. The bulletin highlights phenomena such as geomagnetic storms, solar radiation storms, solar flare radio blackouts, ionospheric storms, and galactic cosmic rays, emphasizing their potential to degrade system performance and increase radiation exposure, especially on polar routes and high altitudes.

Safety Information Bulletin

EASA AD 2021-0118

Apr 28, 2021

Engine Fuel and Control — Pressure Sub-System Units — Operational Check

EASA Airworthiness Directive 2021-0118 is an airworthiness directive addressing the operational check of pressure sub-system units in CFM International LEAP-1B engines installed on Boeing 737-8 and 737-9 aircraft. It targets specific pressure sub-system units with part number 2474M65P06 that may be affected by corrosion. The directive mandates inspections and possible replacement of affected parts to ensure engine thrust control reliability.

Airworthiness Directive
  • CFM International LEAP-1B
  • Boeing 737-8
  • Boeing 737-9

EASA AD CF-2021-16

Apr 28, 2021

Fuel System — Corrosion of Hydraflow Clamshell Couplings

Canadian Airworthiness Directive CF-2021-16 addresses corrosion issues in Hydraflow clamshell couplings within the fuel systems of MHI RJ Aviation ULC aircraft, including Bombardier models CL-600-2B19, CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, and CL-600-2E25. The directive mandates inspections, removal, and replacement of affected fuel clamshell couplings to prevent fuel tank ignition risks. It also requires updates to the Maintenance Requirements Manual for these aircraft models.

Airworthiness Directive
  • MHI RJ Aviation CL-600 (Regional Jet)
  • MHI RJ Aviation ULC Bombardier CL-600-2B19
  • MHI RJ Aviation ULC Bombardier CL-600-2C10
  • MHI RJ Aviation ULC Bombardier CL-600-2C11
  • MHI RJ Aviation ULC Bombardier CL-600-2D15
  • MHI RJ Aviation ULC Bombardier CL-600-2D24
  • MHI RJ Aviation ULC Bombardier CL-600-2E25

EASA SIB 2012-10R1

Apr 28, 2021

Single Event Effects on Aircraft Systems caused by Atmospheric Radiation

EASA Safety Information Bulletin 2012-10R1 is an airworthiness bulletin addressing Single Event Effects (SEE) on aircraft systems caused by atmospheric radiation. It applies to all aircraft equipped with electronic systems essential for safe flight and landing, highlighting the susceptibility of modern electronics to cosmic ray-induced faults. The bulletin explains the types of SEE, their potential impact on systems such as fly-by-wire, autopilot, communication, and navigation, and the influence of solar activity on SEE occurrence.

Safety Information Bulletin

EASA AD US-2021-08-19

Apr 28, 2021

Superseded by FAA AD 2023-08-02

Airworthiness Directive 2021-08-19 is a final rule issued by the Federal Aviation Administration (FAA) that applies to certain Boeing Model 787-8, 787-9, and 787-10 airplanes. It addresses the condition of decompression panels in the bilge barriers located in the forward and aft cargo compartments, requiring inspections and corrective actions to ensure fire suppression effectiveness. This directive supersedes AD 2021-02-19 and expands the applicability to include additional airplanes.

Airworthiness Directive
  • Boeing 7878910

EASA AD 2020-0094R1

Apr 27, 2021

Doors – Cargo Door Locking Mechanism – Inspection

EASA Airworthiness Directive 2020-0094R1 is an updated safety directive addressing the cargo door locking mechanism on Airbus Helicopters EC 175 B models. It mandates inspections of the right-hand and left-hand cargo door locking mechanisms to prevent in-flight door opening due to locking failures. This directive applies to all EC 175 B helicopters except those with modification 99A06087 incorporated.

Airworthiness DirectiveSuperseded
  • Airbus Helicopters EC175
  • Airbus Helicopters EC 175 B

EASA AD 2020-0132R1

Apr 27, 2021

Stabilizers – Horizontal Stabilizer Attachment Bolts – Inspection /; Modification / Clearance Check; Rotorcraft Flight Manual – Amendment

EASA Airworthiness Directive 2020-0132R1 is an updated safety directive addressing the horizontal stabilizer attachment bolts on Airbus Helicopters EC175 B models. It applies to all serial numbers except those with modification 99A05341 installed in production. The directive mandates inspections, life limit recalculations, and modifications to prevent potential in-flight loss of the horizontal stabilizer.

Airworthiness DirectiveSuperseded
  • Airbus Helicopters EC175

EASA AD 2019-0148R1

Apr 27, 2021

Stabilizers – Horizontal Stabilizer Spar – Inspection

EASA Airworthiness Directive 2019-0148R1 is an updated safety directive affecting Airbus Helicopters EC 175 B models, excluding those with modification 99A05341. It mandates repetitive inspections of the horizontal stabilizer main spar to detect cracks that could lead to loss of control. This directive ensures continued airworthiness by requiring timely inspections and corrective actions.

Airworthiness DirectiveSuperseded
  • Airbus Helicopters EC175
  • Airbus Helicopters EC 175 B

EASA AD CF-2020-32R1

Apr 26, 2021

Fuselage – Cracks on Aft Wing To Body Fairing (WTBF) Structure

Airworthiness Directive CF-2020-32R1 is issued by Transport Canada and applies to Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 aircraft. It addresses cracks found in the aft wing-to-body fairing (WTBF) structure, specifically around the tie-rod attachments at fuselage station 973. The directive mandates inspections, repairs, tie-rod load adjustments, and incorporation of reinforcement modifications to maintain structural integrity.

Airworthiness DirectiveSuperseded
  • Airbus BD-500 (A220 Series)
  • Airbus Canada BD-500-1A10
  • Airbus Canada BD-500-1A11

EASA AD 2021-0117

Apr 26, 2021

Landing Gear — Parking Brake System — Modification

EASA Airworthiness Directive 2021-0117 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Pipistrel Virus SW 121 and SW 128 aeroplanes. It addresses a safety issue related to the parking brake system on these aircraft models. The directive mandates a modification to the parking brake system to prevent inadvertent lever movement and brake fluid leakage.

Airworthiness Directive
  • Pipistrel Vertical Solutions D.O.O. Virus SW
  • Pipistrel Virus SW 121
  • Pipistrel Virus SW 128

EASA AD US-2021-08-04

Apr 26, 2021

Oxygen - Oxygen Mask Stowage Box Unit - Inspection / Replacement

Airworthiness Directive 2021-08-04 is a final rule issued by the Federal Aviation Administration addressing crew oxygen mask stowage box units on certain Boeing airplanes, including Model 737-700, -700C, -800, -900ER, Model 747-400F, and Model 767-200 and -300 series. The directive requires inspections and possible replacement or re-identification of affected oxygen mask stowage box units to prevent potential ignition sources or valve jams. This AD expands the applicability beyond the original scope of AD 2013-07-09 to include additional airplane models.

Airworthiness Directive
  • Boeing 737700700C800900ER
  • Boeing 747400F
  • Boeing 757
  • Boeing 767200300

EASA AD 2021-0116

Apr 26, 2021

Rotors Flight Control — Co-pilot Collective Lever Wire Harness — Inspection / Modification

EASA Airworthiness Directive 2021-0116 is an airworthiness directive affecting Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters, specifically those with serial numbers up to 20340 inclusive. The directive addresses inspection and modification requirements for the co-pilot collective lever wire harness to prevent potential electrical short circuits caused by incorrect wire routing. This AD mandates inspections, corrective actions, and a modification to improve the wire harness support.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-2