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EASA Regulations for Boeing 737

175 airworthiness directives and regulations affecting Boeing 737.

EASA AD US-2022-05-04

Superseded by FAA AD 2023-12-13

FAA Airworthiness Directive 2022-05-04 is a final rule addressing all Boeing 737 series airplanes except the 737-200 and -200C models equipped with the SP-77 flight control system. The directive responds to interference risks from 5G C-Band wireless broadband operations affecting radio altimeters and related aircraft systems during critical flight phases. It mandates revisions to the airplane flight manual to include specific operating procedures to mitigate these interference effects.

Airworthiness Directive

Boeing 737

EASA AD US-2021-25-05

Fuselage - Crown Skin Panels - Inspection / Replacement

The Federal Aviation Administration's Airworthiness Directive 2021-25-05 addresses safety concerns for The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive focuses on inspecting and replacing fuselage crown skin panels that are susceptible to widespread fatigue damage, which could compromise the structural integrity of the aircraft.

Airworthiness Directive

Boeing 737100200200C300400500

EASA AD US-2021-26-03

Fuselage - Frame Splice - Inspection

The Federal Register Volume 87, Number 11 Airworthiness Directive 2021-26-03 is a final rule issued by the FAA that applies to certain Boeing 737-300, -400, and -500 series airplanes. It addresses widespread fatigue damage in the fuselage frame splice between stringers S-13 and S-14, requiring inspections and corrective actions to ensure structural integrity. This directive mandates inspections for existing repairs and repetitive high frequency eddy current inspections for cracking in the affected fuselage frame splices.

Airworthiness Directive

Boeing 737300400500

EASA AD US-2022-03-20

Superseded by FAA AD 2023-12-11

FAA Airworthiness Directive 2022-03-20 is a final rule affecting all Boeing 737-8, 737-9, and 737-8200 airplanes. It addresses interference with radio altimeters caused by 5G C-Band wireless broadband operations in the 3.7-3.98 GHz frequency band, which can impair critical aircraft systems during takeoff and landing. The directive mandates revisions to the airplane flight manual to include new limitations and operating procedures to mitigate these risks.

Airworthiness Directive

Boeing 737898200

EASA AD US-2021-25-09

Flight Controls - Angle of Attack Sensor - Inspection /Replacement

Federal Register Volume 86, Number 246, Final Rule titled 'Flight Controls - Angle of Attack Sensor - Inspection /Replacement' is an FAA Airworthiness Directive (AD 2021-25-09) applicable to Boeing 737-200 and -200C series airplanes. It addresses issues with angle of attack (AOA) sensors that may freeze due to insufficient heating, causing nuisance stick shaker activation during climb acceleration.

Airworthiness Directive

Boeing 737200200C

EASA AD US-2021-26-17

Equipment / Furnishings - Passenger Service Units and Life Vest Panels - Inspection / Modification

Airworthiness Directive 2021-26-17 is a final rule issued by the FAA addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes without Boeing Sky Interior. It supersedes AD 2019-03-26 and focuses on inspection and modification of passenger service units (PSUs) and life vest panels to ensure correct lanyard assemblies and proper part number re-identification. The directive aims to prevent PSUs and life vest panels from detaching, which could cause passenger injuries and hinder evacuation.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2021-19-19

Wings - Leading Edge Outboard Blowout Door Sealant - Inspection

The Federal Aviation Administration's Airworthiness Directive 2021-19-19 addresses certain Boeing 737-9 airplanes. It mandates inspections and sealant application on the left and right wing leading edge outboard blowout doors to correct missing sealant issues discovered during manufacturing. This sealant acts as a fuel barrier to prevent potential fuel leaks that could lead to fire hazards.

Airworthiness Directive

Boeing 7379

EASA AD US-2021-18-17

Auto Flight - Operational Program Software - Inspection

Airworthiness Directive 2021-18-17 is a final rule issued by the Federal Aviation Administration addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It requires inspection and potential updating of the operational program software (OPS) of the flight control computers (FCCs) to correct issues with autopilot coupled instrument landing system (ILS) approaches where the airplane may not capture or track the glideslope correctly.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2021-21-09

Fuselage - Aft Pressure Bulkhead - Repetitive Inspections

The Federal Register document titled 'Fuselage - Aft Pressure Bulkhead - Repetitive Inspections' is a final rule Airworthiness Directive (AD 2021-21-09) issued by the FAA affecting The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. This directive mandates repetitive inspections for cracking in the webs of the aft pressure bulkhead and corrective actions if necessary. It also includes inspections for existing repairs on newly included airplanes to ensure continued airworthiness.

Airworthiness Directive

Boeing 737600700700C800900

EASA AD US-2021-13-18

Powerplant - Engine Fan Cowl Spring Door Opening System Actuator - Replacement

Federal Aviation Administration Airworthiness Directive 2021-13-18 is a final rule addressing all Boeing Company Model 737 airplanes powered by LEAP-1B engines, including the 737-8, 737-9, and 737-8200 models. It targets the replacement of the engine fan cowl spring door opening system (SDOS) actuator due to safety concerns involving inadvertent spring energy release causing injury to maintenance personnel. The directive mandates installation of redesigned SDOS actuators with improved joints and clearer safety markers.

Airworthiness Directive

Boeing 737

EASA SIB AIR-21-12

Thrust Reverser System - Deploy / Retract Integrity Test

The Special Airworthiness Information Bulletin SAIB: AIR-21-12 is an FAA informational bulletin addressing the thrust reverser system deploy/retract integrity test on Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It informs operators that after performing the integrity test required by Airworthiness Directive 2019-18-03, the thrust reversers may not deploy on the first command due to residual load. This bulletin provides additional recommendations to prevent this issue.

Safety Information Bulletin

Boeing 737

EASA AD US-2021-16-15

Air Conditioning - Failed Air Conditioning Pack Electronic Flow Control in Aft Cargo Compartment - Dispatch Restrictions for Carriage of Cargo

The Air Conditioning - Failed Air Conditioning Pack Electronic Flow Control in Aft Cargo Compartment - Dispatch Restrictions for Carriage of Cargo is a final rule airworthiness directive issued by the FAA affecting Boeing 737-8, 737-9, 737-8200 (737 MAX), and certain 737-800 and 737-900ER series airplanes. It addresses a safety issue where failed electronic flow control of air conditioning packs reduces fire suppression capability in the aft cargo compartment. The directive prohibits carrying cargo in the aft cargo compartment if the electronic flow control of air conditioning packs has failed.

Airworthiness Directive

Boeing 737898200800900ER

EASA AD US-2021-14-20

Superseded by FAA AD 2022-24-09

FAA Airworthiness Directive 2021-14-20 is a final rule affecting all Boeing Model 737 airplanes. It addresses latent failures of the cabin altitude pressure switches, which are critical for warning flightcrew of cabin depressurization. The directive mandates repetitive functional tests and replacement of faulty switches to ensure continued safety.

Airworthiness Directive

Boeing 737

EASA AD US-2021-10-11

Wings - Bulkhead Splice Angles - Inspection

The Federal Aviation Administration Airworthiness Directive 2021-10-11 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive surface high frequency eddy current inspections of the STA 540 bulkhead splice angles to detect cracks and requires corrective actions if cracks are found. This directive aims to maintain structural integrity and prevent potential fuel leaks and fires.

Airworthiness Directive

Boeing 737100200200C300400500

EASA AD US-2021-11-24

Fuel - Maintenance or Inspection Program - Revision

The Federal Aviation Administration's Final Rule titled 'Fuel - Maintenance or Inspection Program - Revision' is an airworthiness directive (AD 2021-11-24) applicable to certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This directive addresses updated airworthiness limitations related to fuel tank ignition prevention and the nitrogen generation system (NGS).

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2021-10-07

Time Limits / Maintenance Checks — Airworthiness Limitations Section Certification Maintenance Requirement — Amendment

The Time Limits / Maintenance Checks — Airworthiness Limitations Section Certification Maintenance Requirement — Amendment is a final rule airworthiness directive issued by the FAA affecting certain Boeing 737-8 and 737-9 (737 MAX) airplanes. It mandates the incorporation of three additional Certification Maintenance Requirements (CMRs) into the existing maintenance or inspection programs to address potential latent failures in the flight control system. This directive aims to ensure continued airworthiness and safety of the affected aircraft.

Airworthiness Directive

Boeing 73789

EASA AD US-2021-12-13

Fuel - Automatic Shutoff System - Installation / Inspection

Federal Register Volume 86, Number 119 (June 24, 2021) Final Rule titled 'Fuel - Automatic Shutoff System - Installation / Inspection' is an FAA Airworthiness Directive (AD 2021-12-13) applicable to certain Boeing 737-8 and 737-9 airplanes. It addresses a safety issue related to the automatic shutoff system during refueling of the right main tank, requiring installation of a new fuel quantity processor unit (FQPU) and software check.

Airworthiness Directive

Boeing 73789

EASA AD 2021-0135

Oxygen — Low-Pressure Oxygen Flexible Hoses — Replacement

EASA Airworthiness Directive 2021-0135 is an airworthiness directive addressing the replacement of low-pressure oxygen flexible hoses installed on certain Boeing 737-700, 737-800, 747-400, 747-8, 767-400ER, and 777-200 aircraft modified by Lufthansa Technik AG Supplemental Type Certificates. The directive targets conductive oxygen flex-hoses in gaseous passenger oxygen systems that pose a fire risk. It mandates replacing these with non-conductive hoses to ensure continued airworthiness and safety.

Airworthiness Directive

Boeing 737700800
Boeing 7474008
Boeing 767400ER
Boeing 777200

EASA AD US-2021-08-14

Auto Flight - Flap Position Sensor - Testing

Federal Register Volume 86, Number 94 (Tuesday, May 18, 2021) Final Rule titled 'Auto Flight - Flap Position Sensor - Testing' is an FAA Airworthiness Directive affecting all Boeing 737-300, -400, and -500 series airplanes. This directive addresses a flap synchro wire failure issue that may not be detected by the autothrottle computer, potentially compromising the asymmetric cruise thrust monitor function.

Airworthiness Directive

Boeing 737300400500

EASA AD US-2021-09-06

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