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EASA Regulations for Boeing 737

175 airworthiness directives and regulations affecting Boeing 737.

EASA AD US-2021-09-08

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 AD US-2021-08-04

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 US-2021-08-12

Wings - Lower Aft Wing Skin Aft Edge - Inspection

The FAA Airworthiness Directive 2021-08-12 is a final rule addressing all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive inspections of the lower aft wing skin aft edge at specific flap track locations due to crack indications found in bolt holes where flap tracks attach to the track support fitting. The directive aims to ensure structural integrity by detecting and repairing cracks that could compromise the wing's ability to carry limit loads.

Airworthiness Directive

Boeing 737100200200C300400500

EASA AD US-2021-07-17

Electrical Power - Main Landing Gear Wheel Well Electrical Connectors - Inspection

Federal Aviation Administration Airworthiness Directive 2021-07-17 is a final rule addressing all Boeing 737-900ER series airplanes. It mandates repetitive records checks and inspections for corrosion of electrical connectors in the main landing gear wheel well, prompted by reports of significant corrosion that could lead to electrical shorting and unsafe flight conditions.

Airworthiness Directive

Boeing 737900ER

EASA AD US-2021-07-02

Ice and Rain Protection - Pitot Anti-icing System Components - Inspection / Replacement

The Federal Register Volume 86, Number 63 (April 5, 2021) Final Rule titled "Ice and Rain Protection - Pitot Anti-icing System Components - Inspection / Replacement" is a new airworthiness directive issued by the FAA for certain Boeing 737-200 series airplanes. It addresses the pitot heat switch issue that can lead to misleading air data by requiring replacement of pitot anti-icing system components, installation of a junction box and wiring provisions, and repetitive testing of the anti-icing system.

Airworthiness Directive

Boeing 737200

EASA AD US-2021-01-04

Doors - Upper Aft Corner Stop Fitting Assembly - Inspection / Replacement

Federal Aviation Administration Airworthiness Directive 2021-01-04 is a final rule addressing all Boeing 737 series airplanes except the 737-100, -200, -200C, -300, -400, and -500 series. It focuses on inspecting and replacing the upper aft corner stop fitting assembly of the forward entry door due to reports of cracked or severed lugs. The directive mandates inspections, measurements, or records checks to identify affected parts and requires replacement if a specific part number is found.

Airworthiness Directive

Boeing 737

EASA AD US-2021-02-14

Fuel - Side of Body Slot - Inspection

Federal Register Volume 86, Number 34 (February 23, 2021) is a final rule airworthiness directive issued by the FAA addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. The directive mandates inspection of the side of body (SOB) slot for insufficient sealant due to unclear production drawing instructions, which could lead to fuel leaks and potential fire hazards. It requires a general visual inspection and corrective actions to ensure safety.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2021-01-07

Air Conditioning - Environmental Control System / Equipment Cooling System - Inspection / Installation / Modification

Airworthiness Directive 2021-01-07 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing 737-700 series airplanes. It mandates repetitive testing of the smoke clearance mode of the equipment cooling system and low pressure environmental control system, installation of new relays, and wiring changes to the environmental control system. This directive aims to prevent latent failures that could lead to smoke in the flight deck or cabin and potential loss of aircraft control.

Airworthiness Directive

Boeing 737700

EASA AD US-2021-02-13

Fuselage - Forward Galley Door Fuselage Skin / Bear Strap - Inspection

The Federal Aviation Administration's Airworthiness Directive 2021-02-13 is a final rule addressing certain Boeing 737-600, -700, -700C, -800, and -900 series airplanes. It mandates inspections of the fuselage skin and bear strap at the forward galley door area for cracks, prompted by reports of cracking in the bear strap between station 290 and 296. The directive aims to prevent potential structural integrity loss and uncontrolled decompression.

Airworthiness Directive

Boeing 737600700700C800900

EASA AD 2021-0039R2

Return to Service

EASA Airworthiness Directive 2021-0039R2 is a regulatory document addressing the return to service of Boeing 737-8 and 737-9 (MAX) aeroplanes. It mandates software updates, modifications, and operational changes to ensure safe flight operations following previous grounding due to safety concerns. The directive covers installation of updated Flight Control Computer and MAX Display System software, wiring modifications, sensor tests, and updated pilot training requirements.

Airworthiness Directive

Boeing 73789

EASA AD US-2020-26-09

Wings - Center Wing Box Fastener Holes - Inspection

FAA Airworthiness Directive 2020-26-09 is a final rule addressing all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates inspections of the center wing box fastener holes for cracks using high frequency eddy current, ultrasonic, or detailed internal inspection methods. The directive aims to maintain structural integrity by detecting and repairing cracks in critical wing components.

Airworthiness Directive

Boeing 737100200200C300400500

EASA AD US-2020-26-04

Fuselage - Skin Panels - Inspection / Repair / Installation

Airworthiness Directive 2020-26-04 is a final rule issued by the FAA addressing certain Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates inspections and repairs of fuselage skin panels, specifically targeting cracking along chem-milled lines. This directive updates and expands previous inspection requirements to ensure continued airworthiness.

Airworthiness Directive

Boeing 737100200200C300400500

EASA AD US-2020-24-02

NOT ADOPTED - EASA DECISION ATTACHED

The Federal Aviation Administration's final rule titled Airworthiness Directive 2020-24-02 supersedes AD 2018-23-51 and applies to Boeing 737-8 and 737-9 (737 MAX) airplanes. It mandates software updates to the flight control computer and MAX display system, revisions to the Airplane Flight Manual, wiring modifications, angle of attack sensor system tests, and operational readiness flights. This directive addresses unsafe conditions related to erroneous angle of attack sensor inputs that could cause repeated nose-down horizontal stabilizer trim.

Airworthiness Directive

Boeing 73789

EASA AD US-2020-18-13

NOT ADOPTED - EASA DECISION ATTACHED

The document titled NOT ADOPTED - EASA DECISION ATTACHED is a Federal Aviation Administration (FAA) final rule airworthiness directive (AD 2020-18-13) addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates modifications to the fuel quantity indicating system (FQIS) to prevent ignition sources inside the center fuel tank caused by electrical faults. The directive also includes alternative actions for cargo-configured airplanes to mitigate the risk of fuel tank explosions.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2020-17-04

Equipment / Furnishings - Passenger Service Units and Lanyard Assemblies on the Life Vest Panels - Installation

The Equipment / Furnishings - Passenger Service Units and Lanyard Assemblies on the Life Vest Panels - Installation is a Federal Aviation Administration (FAA) Airworthiness Directive (AD 2020-17-04) that applies to certain Boeing 737-300, -400, and -500 series airplanes. This AD addresses the installation of lanyard assemblies on passenger service units (PSUs) and life vest panels to prevent detachment during survivable accidents. It supersedes a previous directive and mandates additional installation requirements for five specific airplanes.

Airworthiness Directive

Boeing 737300400500

EASA AD ISR-I-53-2019-12-6R2

Loading Restrictions due to 9G Barrier Manufacturing Non-Compliance

Loading Restrictions due to 9G Barrier Manufacturing Non-Compliance is a regulatory document addressing loading limitations on Boeing 737 aircraft modified under Israel Aerospace Industries Ltd and associated STCs including CAA Israel STC SA136, SA160, SA299, and EASA STCs 10015542, 10016227, EASA.IM.A.S.01426, and EASA.IM.A.S.02479. The document highlights issues related to non-compliance in the manufacturing of 9G barriers installed on these aircraft. It applies specifically to Boeing 737 models equipped with these modifications.

Safety Directive

Boeing 737
Israel Aerospace Industries CAA Israel STC SA136
Israel Aerospace Industries CAA Israel STC SA160
Israel Aerospace Industries CAA Israel STC SA299

EASA AD US-2020-14-03

Wings - Strut to Wing Diagonal Brace & Nacelle Support Overwing Fitting - Inspection

Federal Aviation Administration Airworthiness Directive 2020-14-03 is a final rule addressing all Boeing 737-300, -400, and -500 series airplanes. It mandates inspections of the strut to wing diagonal brace and the nacelle support overwing fitting to detect fatigue cracking. The directive includes visual, ultrasonic, and magnetic inspections depending on airplane configuration to ensure structural integrity.

Airworthiness Directive

Boeing 737300400500

EASA AD US-2020-16-51

[Final Rule] Pneumatic - Engine Bleed Stage 5 Check Valves - Inspection

The Final Rule titled 'Pneumatic - Engine Bleed Stage 5 Check Valves - Inspection' is an airworthiness directive issued by the FAA for all Boeing 737-300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates inspections and, if necessary, replacement of the engine bleed air 5th stage check valves on each engine due to reports of valves stuck open causing single-engine shutdowns. This directive addresses a critical safety risk related to potential dual-engine power loss.

Airworthiness Directive

Boeing 737300400500600700700C800900900ER

EASA AD US-2020-14-09

Fuel - Kathon FP 1.5 Biocide - Removal / Installation / Airplane Flight Manual Revision

The Fuel - Kathon FP 1.5 Biocide - Removal / Installation / Airplane Flight Manual Revision is a Federal Aviation Administration (FAA) Airworthiness Directive (AD) addressing certain Boeing 737-8 and 737-9 (737 MAX) airplanes equipped with CFM LEAP-1B engines. This AD requires removal of Kathon FP 1.5 biocide from fuel tanks and engines, installation of a fuel limitation placard, and revision of the airplane flight manual to prohibit operation with this biocide in the fuel system. The directive responds to engine anomalies linked to the biocide causing fuel control instability and potential loss of thrust control.

Airworthiness Directive

Boeing 73789

EASA AD US-2020-11-12

Nacelles / Pylons - Thumbnail Fairing and Mid Strut Fairing Panels - Inspection / Replacement / Modification

Federal Aviation Administration Airworthiness Directive 2020-11-12 is a final rule addressing certain Boeing 737-8 and 737-9 airplanes. It focuses on inspection, replacement, and modification of the thumbnail fairing and mid strut fairing panels on the engine nacelle and strut to ensure proper electrical bonding and shielding against high intensity radiated fields (HIRF). This directive aims to prevent potential dual-engine power loss and misleading propulsion parameter displays.

Airworthiness Directive

Boeing 73789