EASA Regulations for Boeing 777-300ER

15 airworthiness directives and regulations affecting Boeing 777-300ER.

EASA AD US-2024-04-09

Instruments - Wing Anti-Ice Valve / Autothrottle - Software Installation

Airworthiness Directive 2024-04-09 issued by the Federal Aviation Administration addresses certain Boeing 777-200, 777-200LR, 777-300, 777-300ER, and 777F series airplanes. It mandates software installation and configuration checks to resolve wing anti-ice valve failures and autothrottle disconnection issues that could compromise flight safety. The directive targets software updates to improve low-speed protection and response to unreliable airspeed events.

Apr 10, 2024

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ERBoeing 777F

EASA AD US-2023-21-09

Flight Controls - Trailing Edge Flap Transmission and Gearbox Assemblies - Inspection

Airworthiness Directive 2023-21-09 is a final rule issued by the Federal Aviation Administration (FAA) addressing all Boeing 777-200, 777-200LR, 777-300, 777-300ER, and 777F series airplanes. It mandates inspection or records review of the trailing edge flap transmission and gearbox assemblies to identify affected serial numbers and requires corrective actions if necessary. The directive also restricts the installation of certain parts to prevent unsafe conditions related to flap control failures.

Nov 20, 2023

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ERBoeing 777F

EASA AD US-2022-14-05

[Correction] Flight Controls - Elevators, Rudder, and Rudder Tab - Inspections and Lubrication

The Correction to Airworthiness Directive 2022-14-05 issued by the Federal Aviation Administration (FAA) addresses inspection and lubrication requirements for flight controls including elevators, rudder, and rudder tab on all Boeing 777-200, -200LR, -300, -300ER series airplanes, and certain 777F models. This correction fixes an incorrect freeplay indicator value and adds omitted credit for certain service information related to these inspections and maintenance procedures.

Oct 4, 2022

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ERBoeing 777F

EASA AD US-2021-19-15

Equipment / Furnishings - Galley Mounted Attendant Seat Fittings - Modification

Airworthiness Directive 2021-19-15 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing 777-200, -200LR, -300, and -300ER series airplanes. This directive mandates modifications to galley mounted attendant seat fittings to correct non-compliance issues found in some in-service installations. The directive aims to enhance flight attendant safety by ensuring seat fittings can withstand high-G crash conditions.

Jan 10, 2022

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ER

EASA AD US-2021-13-02

Equipment / Furnishings - Insulation Blankets - Installation

Federal Aviation Administration Airworthiness Directive 2021-13-02 is a final rule addressing certain Boeing 777-300ER series airplanes. It mandates installation of an insulation blanket assembly over existing insulation blankets in the aft cargo compartment to prevent leakage of halon and smoke during a fire. This directive aims to enhance fire safety by mitigating potential loss of fire suppressant in the cargo area.

Aug 13, 2021

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-300ER

EASA AD US-2020-22-10

Equipment / Furnishings - Foam Insulation on the Dripshield & Overhead Panel Support Structure - Inspection / Replacement

Airworthiness Directive 2020-22-10 is a final rule issued by the Federal Aviation Administration addressing certain Boeing 777-200, -200LR, -300, and -300ER series airplanes. It mandates inspections and potential replacement of Boeing Material Specification 8-39 flexible urethane foam insulation on the dripshield and overhead panel support structure in the flight compartment. This directive aims to mitigate fire risks associated with foam degradation in these areas.

Dec 15, 2020

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ER

EASA AD US-2020-10-04

Engine - Interstage High-Pressure Turbine Rotor Seal - Inspection / Replacement

The document titled "Engine - Interstage High-Pressure Turbine Rotor Seal - Inspection / Replacement" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD 2020-10-04) addressing General Electric Company GE90-110B1 and GE90-115B turbofan engines. It mandates inspections and potential replacement of the interstage high-pressure turbine (HPT) rotor seal to prevent unsafe conditions. The directive applies specifically to these engine models installed on Boeing 777-300ER aircraft.

May 13, 2020

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric GE90Boeing 777-300ER

EASA AD US-2020-04-19

Auto Flight - Mode Control Panel - Replacement

Airworthiness Directive 2020-04-19 is a final rule issued by the FAA addressing The Boeing Company Model 777 series airplanes, including 777-200, -200LR, -300, -300ER, and 777F. It mandates replacement of certain mode control panels (MCP) with updated parts to prevent uncommanded altitude changes. This directive expands the applicability of the previous AD 2017-15-01 and adds new inspection and replacement requirements.

Mar 19, 2020

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ERBoeing 777F

EASA AD US-2020-01-55

Engine - Interstage Seals - Replacement

The Federal Aviation Administration's Airworthiness Directive 2020-01-55 addresses certain General Electric Company GE90-110B1 and GE90-115B turbofan engines installed on Boeing 777-300ER aircraft. This directive mandates the removal from service of specific interstage seals, part numbers 2505M72P01 and 2448M33P01, due to a risk of uncontained high-pressure turbine failure. The directive aims to prevent engine damage and potential loss of the airplane caused by high-energy debris release.

Feb 17, 2020

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric GE90Boeing 777-300ER

EASA AD US-2019-25-12

Oxygen - Low-Pressure Oxygen Flex Hoses - Replacement

The Federal Aviation Administration's Airworthiness Directive 2019-25-12 addresses certain Boeing 777-200 and 777-300ER series airplanes equipped with therapeutic oxygen systems. This directive mandates the replacement of low-pressure oxygen flex hoses with new non-conductive hoses to prevent potential electrical conductivity hazards. The directive updates and supersedes the previous AD 2016-18-02 by adding additional required actions for certain airplane groups.

Jan 8, 2020

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-300ER

EASA AD US-2019-25-14

Stringer Splices and Skin Splice Straps - Repetitive Inspections

The Federal Aviation Administration's Airworthiness Directive 2019-25-14 mandates repetitive inspections for certain Boeing 777-300ER and 777F series airplanes. This directive addresses widespread fatigue damage in fuselage stringers, stringer splices, and skin splice straps by requiring detailed and high frequency eddy current inspections along with applicable corrective actions. The directive aims to ensure continued airworthiness and safety of these aircraft models.

Jan 8, 2020

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-300ERBoeing 777F

EASA AD US-2019-01-08

SUPERSEDED BY FAA AD 2021-19-15

FAA Airworthiness Directive 2019-01-08 is a final rule addressing certain Boeing 777-200, -200LR, -300, and -300ER series airplanes. It mandates modifications to galley-mounted flight attendant seat fittings due to identified non-compliance issues that could cause seat failure in high-G crash conditions. This directive aims to enhance flight attendant safety and ensure their ability to assist in passenger evacuation.

Mar 18, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ER

EASA AD US-2018-14-02

SUPERSEDED BY FAA AD 2020-22-10

FAA Airworthiness Directive 2018-14-02 is a final rule applicable to certain Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. It addresses the presence and condition of Boeing Material Specification 8-39 flexible urethane foam insulation in specific areas of these aircraft. The directive mandates inspections and, if necessary, replacement of foam insulation on the dripshield above the overhead panel support structure and, for some airplanes, on the overhead panel support structure itself.

Aug 1, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ER

EASA AD US-2018-12-04

Equipment/Furnishings - Water Filter Assembly - Replacement

The Federal Aviation Administration Airworthiness Directive 2018-12-04 is a final rule addressing certain Boeing 777-300ER series airplanes. It mandates the replacement of the water filter assembly in Jamco steam ovens, part numbers ASN2001-1 and ASN2001-12, to prevent hot water from escaping when the oven door is opened. This directive aims to mitigate the risk of injury to cabin crew caused by heated water release from the steam oven cavity.

Jun 19, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-300ER

EASA AD US-2018-02-20

Fuselage - Aft Fuselage - Inspection / Review of Maintenance Procedures

Federal Aviation Administration Airworthiness Directive 2018-02-20 is a final rule addressing certain Boeing 777-200, -200LR, -300, and -300ER series airplanes. It mandates inspections and maintenance procedure reviews due to reported corrosion in the aft fuselage area. The directive aims to prevent structural fatigue cracks and potential rapid decompression caused by untreated vacuum waste system spills or leaks.

Feb 28, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 777Boeing 777-200Boeing 777-200LRBoeing 777-300Boeing 777-300ER