EASA Regulations & Airworthiness Directives

Browse 173 EASA regulations with AI-powered summaries.

Filtered by: Boeing 737Clear filter

EASA AD US-2021-26-03

Jan 31, 2022

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

Jan 31, 2022

Superseded by FAA AD 2023-12-11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

Jan 25, 2022

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

Jan 13, 2022

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

Nov 23, 2021

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

Nov 18, 2021

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

Nov 9, 2021

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

Aug 25, 2021

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

Aug 25, 2021

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

Aug 9, 2021

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-2021-10-11

Jul 16, 2021

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

Jul 8, 2021

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

Jul 5, 2021

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

Jul 1, 2021

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

Jun 2, 2021

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

May 26, 2021

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

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 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 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