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EASA Regulations for Boeing 747

80 airworthiness directives and regulations affecting Boeing 747.

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New ADs and bulletins for Boeing 747, summarized like the ones below, every Monday.

EASA AD US-2026-13-03

Fuselage - Stringers and Stringer Splice Fittings - Inspection

The Federal Aviation Administration's Airworthiness Directive 2026-13-03 addresses certain Boeing 747-8F series airplanes. This directive mandates inspections of fuselage stringers and stringer splice fittings for cracking and the presence of radius fillers at specific fastener locations. It also requires applicable on-condition actions to ensure continued airworthiness.

Airworthiness Directive

Boeing 7478F

EASA AD ISR-I-35-26-01-01

Potential of arcing, fire and/or loss of crew oxygen supply due to insufficient clearances between electrical wiring and flexible oxygen hose

Airworthiness Directive AD ISR I-35-26-01-01 issued by the Civil Aviation Authority of Israel addresses a safety issue on Boeing 747-400 freighter aircraft converted under CAAI STC SA-151 or SA-152 and their validated equivalents. The directive highlights the risk of arcing, fire, and loss of crew oxygen supply caused by insufficient clearance between electrical wiring and the flexible crew oxygen hose. It requires inspection and corrective action to prevent potential hazards related to chafing and damage to oxygen hoses and electrical wiring.

Airworthiness Directive

Boeing 747
Israel Aerospace Industries CAA Israel STC SA151
Israel Aerospace Industries CAA Israel STC SA152

EASA AD US-2025-15-07

Equipment / Furnishings - Captain's and First Officer's Seats - Inspection / Check

Airworthiness Directive 2025-15-07 is a final rule issued by the Federal Aviation Administration addressing The Boeing Company Model 747 series airplanes, including 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8. It focuses on inspection and checks of the Captain's and First Officer's seats, specifically the horizontal movement system (HMS), to ensure safety and prevent uncommanded seat movement during critical flight phases.

Airworthiness Directive

Boeing 747

EASA AD US-2025-09-08

Stabilizers - Outboard Elevators - Maintenance Records Check / Inspection

The Federal Aviation Administration's Airworthiness Directive 2025-09-08 addresses a safety issue affecting all Boeing Model 747 series airplanes. The directive requires a maintenance records check or inspection to verify whether certain outboard elevators, specifically part numbers 654U6625-2411 and 654U6625-2412, have been installed with the necessary balance weights. This action is necessary due to reports of elevators installed without balance weights, which poses safety risks.

Airworthiness Directive

Boeing 747

EASA AD US-2025-02-07

Navigation - Aeroplane Flight Manual - Revision / Software Installation

Airworthiness Directive 2025-02-07 is a final rule issued by the Federal Aviation Administration addressing certain Boeing airplanes including Model MD-11, MD-11F, 717-200, 737-600 through 737-9 series, 747-400 series, 757, 767, and 777. The directive focuses on updating the Aeroplane Flight Manual and installing updated multimode receiver (MMR) operational software to address issues with Coordinated Universal Time calculation errors and simultaneous MMR resets. This affects airplanes equipped with Collins GLU-2100 MMR part number 822-2532-100 with software versions earlier than COL4C-0087-0003.

Airworthiness Directive

Boeing 717
Boeing 737
Boeing 747
Boeing 757
Boeing 767
Boeing 777
Boeing MD-11

EASA AD US-2025-03-10

Water / Waste - Exposed Potable Water Supply Lines - Installation

The Federal Aviation Administration's Airworthiness Directive 2025-03-10 addresses certain Boeing 747-400, 747-400F, 747-8F, and 747-8 series airplanes. It mandates modifications to exposed potable water supply lines to prevent water leaks that could affect critical electronic systems. This directive aims to enhance safety by mitigating risks associated with water intrusion into the main electronics center.

Airworthiness Directive

Boeing 747

EASA AD US-2025-01-08

Superseded by FAA AD 2025-15-07

Airworthiness Directive 2025-01-08 is a final rule issued by the Federal Aviation Administration (FAA) that supersedes AD 2019-22-02. It applies to all Boeing Model 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8 series airplanes. The directive addresses uncommanded fore and aft movement of the Captain's and First Officer's seats by requiring inspections and on-condition actions for affected seat part numbers.

Airworthiness Directive

Boeing 747

EASA AD US-2025-02-05

Landing Gear - Outer Cylinders - Replacement

The Federal Register document titled "Landing Gear - Outer Cylinders - Replacement" is a final rule airworthiness directive (AD 2025-02-05) issued by the FAA affecting all Boeing Model 747 series airplanes including 747-100, 747-200, 747-300, 747-400, 747SP, and 747SR variants. The AD addresses a safety issue related to improper inner diameter grinding of landing gear outer cylinders that may cause heat damage to the nose, body, and wing landing gear outer cylinders. This directive mandates the replacement of any affected outer cylinders to ensure continued airworthiness.

Airworthiness Directive

Boeing 747

EASA AD US-2024-19-01

Fuselage -Upper Fastener Row of the Fuselage Skin Lap Splice - Inspections

The document titled 'Fuselage -Upper Fastener Row of the Fuselage Skin Lap Splice - Inspections' is a regulatory directive focusing on inspection requirements for the upper fastener row of the fuselage skin lap splice. It addresses potential structural integrity concerns related to this specific area of the aircraft fuselage. The directive applies to affected aircraft models that utilize this fuselage design, although specific aircraft types or engine models are not explicitly mentioned in the provided content.

Airworthiness Directive

Boeing 747

EASA AD US-2024-16-03

Wings - Fastener Collars inside the Fuel Tanks - Application of Cap Seals

The document titled 'Wings - Fastener Collars inside the Fuel Tanks - Application of Cap Seals' is a regulatory communication addressing the installation of cap seals on fastener collars located inside aircraft fuel tanks. It is intended for aviation maintenance and engineering professionals involved with aircraft fuel system integrity. The document does not specify particular aircraft models or engine types affected.

Safety Information Bulletin

Boeing 747

EASA AD US-2024-02-03

Instruments - Electronic Flight Instrumentation System / Engine Indicating and Crew Alerting System Interface Units - Modification

The Federal Aviation Administration's Airworthiness Directive 2024-02-03 addresses certain Boeing 747-8 and 747-8F series airplanes. This final rule mandates updated software installation for the Electronic Flight Instrumentation System and Engine Indicating and Crew Alerting System Interface Units to prevent display failures and improve airspeed alerting during landing.

Airworthiness Directive

Boeing 74788F

EASA AD US-2023-23-14

Fuel - Engine Fuel Feed System - Inspection / Measurement

Federal Aviation Administration Airworthiness Directive 2023-23-14 is a final rule addressing all Boeing Company Model 747 airplanes. It mandates inspections and electrical bonding resistance measurements of the engine fuel feed system's out-tank fuel feed tube bonding jumper and front spar bulkhead fitting adapter to mitigate latent failures in lightning protection features. The directive aims to prevent potential ignition sources inside fuel tanks during lightning strikes.

Airworthiness Directive

Boeing 747

EASA AD US-2023-18-06

Wings - Inboard Foreflaps - Inspection / Replacement

Airworthiness Directive 2023-18-06 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing Model 747 series airplanes, including 747-100, 747-200, 747-300, 747-400, and 747SR variants. This directive focuses on the inspection, lubrication, and replacement of inboard foreflap components to prevent partial or full departures of the foreflap assembly. The directive incorporates updated service information from Boeing and mandates repetitive inspections and maintenance actions to ensure continued airworthiness.

Airworthiness Directive

Boeing 747100200300400
Boeing 747SR

EASA SIB SAFO23004

Erroneous Maximum Takeoff Weight Calculation from Boeing Performance Engineer's Tool Reporters

The document titled 'Erroneous Maximum Takeoff Weight Calculation from Boeing Performance Engineer's Tool Reporters' is a Safety Alert for Operators (SAFO 23004) issued by the FAA. It addresses an issue affecting Boeing airplane models 737-200, 737-300, 737-400, 737-500, 747-200, 747-300, 747-400, 757-200, 767-200, and 767-300, where the Boeing Performance Engineer's Tool (PET) Reporters may calculate incorrect Maximum Takeoff Weight (MTOW) values. This error impacts takeoff performance calculations, particularly when using the Improved Climb feature, potentially leading to safety risks such as runway overruns or insufficient climb performance.

Safety Information Bulletin

Boeing 737
Boeing 747
Boeing 757
Boeing 767

EASA AD US-2023-14-03

Fuselage - Stringers of Forward and Aft of the Bulkhead - Inspection

The Federal Aviation Administration (FAA) Airworthiness Directive 2023-14-03 is a final rule addressing all Boeing Model 747-8F and 747-8 series airplanes. It mandates inspections of fuselage stringers, specifically those common to the end fittings forward and aft of the bulkhead at station 2598, due to reported cracks. The directive aims to prevent structural integrity issues caused by stress corrosion cracking in these stringers.

Airworthiness Directive

Boeing 7478F8

EASA AD US-2023-11-11

Fuselage - Pressure Bulkhead Stringer Sidewalls / Assemblies - Inspection

The Federal Aviation Administration's Airworthiness Directive 2023-11-11 is a final rule addressing all Boeing 747-8 and 747-8F series airplanes. It mandates repetitive inspections of stringer sidewalls and assemblies near the pressure bulkhead at station 2360 due to reported cracks. This directive aims to ensure structural integrity by detecting and repairing stress corrosion cracking in critical fuselage components.

Airworthiness Directive

Boeing 74788F

EASA AD US-2023-12-08

Fuselage - Stringers and End Stringer Splice Assemblies - Inspection

Airworthiness Directive 2023-12-08 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing 747-8 series airplanes. It mandates repetitive inspections of fuselage stringers and end stringer splice assemblies due to stress corrosion cracking found between station 2285 and 2300 on stringers S-17 to S-25. The directive aims to ensure structural integrity by detecting cracks, shims, or gaps that could compromise the airplane's safety.

Airworthiness Directive

Boeing 7478

EASA AD US-2023-12-18

Fuselage - Stringers and Stringer Splice Fittings - Inspection

Airworthiness Directive 2023-12-18 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing 747-8 and 747-8F series airplanes. It mandates inspections of fuselage stringers and stringer splice fittings for cracking and the presence of radius fillers at fastener locations. The directive aims to ensure the structural integrity of these aircraft by identifying and correcting potential cracking issues in critical fuselage components.

Airworthiness Directive

Boeing 74788F

EASA AD US-2023-12-14

Aircraft Flight Manual - Limitations / Operating Procedures - Amendment

The Aircraft Flight Manual - Limitations / Operating Procedures - Amendment is a final rule issued by the Federal Aviation Administration (FAA) addressing Boeing Model 747 series airplanes, including 747-100 through 747-400F variants. This amendment supersedes a previous Airworthiness Directive and updates the airplane flight manual to include new limitations and operating procedures related to interference from 5G C-Band wireless broadband signals affecting radio altimeter performance.

Airworthiness Directive

Boeing 747100400F

EASA AD US-2023-12-05

Aircraft Flight Manual - Limitations / Operating Procedures - Amendment

The document titled "Aircraft Flight Manual - Limitations / Operating Procedures - Amendment" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD 2023-12-05) that applies to Boeing Model 747-8F, 747-8 series, and 777 airplanes equipped with radio altimeters. It addresses interference issues caused by wireless broadband operations in the 3.7-3.98 GHz 5G C-Band frequency range that affect the reliability of radio altimeters and related airplane systems.

Airworthiness Directive

Boeing 7478F8
Boeing 777