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EASA Regulations for Boeing 737-800

49 airworthiness directives and regulations affecting Boeing 737-800.

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-2021-09-06

Superseded by FAA AD 2025-07-03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

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-2021-02-14

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-2021-02-13

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 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-2020-16-51

[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-2020-03-20

Superseded by FAA AD 2025-02-07

FAA Airworthiness Directive 2020-03-20 is a final rule addressing certain Boeing aircraft models including MD-11, MD-11F, 717-200, all 737-8 and 737-9, all 737-600/-700/-700C/-800/-900/-900ER series, certain 747-400 and 747-400F, certain 757 and 767, and all 777 airplanes. This directive requires revising the airplane flight manual to prohibit operations requiring less than 0.3 required navigational performance (RNP) within a specified geographic area for airplanes equipped with a Collins GLU-2100 multi-mode receiver (MMR) with certain software versions. The AD was issued due to reports of loss or degradation of GPS data affecting positional accuracy.

Airworthiness Directive

Boeing 717200
Boeing 73789600700700C800900900ER
Boeing 747400400F
Boeing 757
Boeing 767
Boeing 777
Boeing MD-11
McDonnell Douglas MD-11
McDonnell Douglas MD-11F

EASA AD US-2020-01-11

Air Conditioning - Temperature Control Valve / Control Cabin Trim Air Modulating Valve - Replacement

Airworthiness Directive 2020-01-11 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing 737-800, -900, and -900ER series airplanes. It mandates the replacement of the left temperature control valve and control cabin trim air modulating valve to prevent in-flight failures that could cause excessive temperatures in the flight deck or passenger cabin. This directive updates and expands the applicability of the previous AD 2017-12-07.

Airworthiness Directive

Boeing 737800900900ER

EASA AD 2020-0007

Engine — Rotating Air High Pressure Turbine Front Seal — Replacement

EASA Airworthiness Directive 2020-0007 is a regulatory document addressing the replacement of rotating air high pressure turbine (HPT) front seals on CFM International CFM56-5B, CFM56-5C, and CFM56-7B engines. These engines are installed on various Airbus models including A318, A319, A320, A321, A340, and Boeing 737-600, 737-700, 737-800, and 737-900 aircraft. The directive mandates inspections and replacement of specific affected HPT front seals to prevent potential uncontained engine failures.

Airworthiness Directive

CFM International CFM56-5B
CFM International CFM56-5C
CFM International CFM56-7B
Airbus A318
Airbus A319
Airbus A320
Airbus A321
Airbus A340
Boeing 737-600
Boeing 737-700
Boeing 737-800
Boeing 737-900

EASA AD US-2019-19-10

Airplane Flight Manual / Minimum Equipment List - Revision / Fuel Crossfeed Valve Operational Check

The Airplane Flight Manual / Minimum Equipment List - Revision / Fuel Crossfeed Valve Operational Check is a final rule airworthiness directive issued by the FAA affecting all Boeing 737-300 through 900ER series, 757, 767, 777, and 787-8 and 787-9 airplanes. It addresses reports of fuel crossfeed valves failing to open during flight, which could lead to fuel starvation and forced off-airport landings. The directive mandates revisions to the airplane flight manual and minimum equipment list to ensure operational checks of fuel crossfeed valves prior to extended operations (ETOPS) flights when certain valves or fuel balancing systems are inoperative.

Airworthiness Directive

Boeing 737300400500600700800900ER
Boeing 757
Boeing 767
Boeing 777
Boeing 78789

EASA AD US-2019-22-06

Fuel - Fuel Quantity Indicating System Tank Unit - Inspection

Federal Register Volume 84, Number 227 (November 25, 2019) - Airworthiness Directive 2019-22-06 is a final rule issued by the FAA affecting certain Boeing 737-800 series airplanes modified with split winglets per STC ST00830SE. This directive addresses inadequate clearance between the fuel quantity indicating system (FQIS) tank unit and a reinforcement angle added during the split winglet modification, which could pose a fire risk.

Airworthiness Directive

Boeing 737800

EASA AD US-2019-22-10

Superseded by FAA AD 2021-09-06

FAA Airworthiness Directive 2019-22-10 is a final rule affecting all Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates expanded repetitive inspections for cracking in the left- and right-hand side outboard chords of frame fittings and failsafe straps at station 663.75, around eight fasteners adjacent to stringer S-18A straps. This directive addresses structural integrity concerns to prevent potential loss of airplane control.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2019-20-02

Superseded by FAA AD 2019-22-10

FAA Airworthiness Directive 2019-20-02 is a final rule addressing all Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates repetitive inspections for cracking in the left and right side outboard chords of the station 663.75 frame fittings and failsafe straps adjacent to stringer S-18A straps, with required repairs if cracking is found. This directive aims to maintain structural integrity and prevent potential loss of airplane control.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD 2019-0150

Engine – Rotating Air High Pressure Turbine Front Seal – Replacement

EASA Airworthiness Directive 2019-0150 is an airworthiness directive addressing certain CFM International CFM56-5B, CFM56-5C, and CFM56-7B engines installed on various Airbus A318, A319, A320, A321, A340 and Boeing 737-600, 737-700, 737-800, and 737-900 aircraft. The directive mandates replacement of specific rotating air high pressure turbine (HPT) front seals identified by part numbers 1795M36P01 and 1795M36P02 due to risk of cracks leading to uncontained engine failure. It provides detailed affected serial numbers and compliance requirements for operators and maintenance organizations.

Airworthiness DirectiveSuperseded

CFM International CFM56-5B
CFM International CFM56-5C
CFM International CFM56-7B
Airbus A318
Airbus A319
Airbus A320
Airbus A321
Airbus A340
Boeing 737-600
Boeing 737-700
Boeing 737-800
Boeing 737-900

EASA AD 2019-0146

Engine – Rotating Air High Pressure Turbine Front Seal – Replacement

EASA Airworthiness Directive 2019-0146 is an airworthiness directive addressing certain CFM56-5B, CFM56-5C, and CFM56-7B engines installed on aircraft including Airbus A318, A319, A320, A321, A340 and Boeing 737-600, 737-700, 737-800, and 737-900. The directive focuses on the replacement of rotating air high pressure turbine (HPT) front seals that are susceptible to cracking if removed and re-installed on different HPT disks. It mandates specific inspections and replacements to ensure continued airworthiness and safe operation of affected engines.

Airworthiness DirectiveSuperseded

CFM International CFM56-5B
CFM International CFM56-5C
CFM International CFM56-7B
Airbus A318
Airbus A319
Airbus A320
Airbus A321
Airbus A340
Boeing 737-600
Boeing 737-700
Boeing 737-800
Boeing 737-900

EASA AD US-2019-11-06

Fuselage - Skin under the Drag Link Assembly - Inspection

Federal Aviation Administration Airworthiness Directive 2019-11-06 is a final rule addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates repetitive inspections of the fuselage skin under the drag link assembly for cracks at specific fastener locations. The directive aims to ensure continued airworthiness by detecting and correcting skin cracks that could compromise structural integrity.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2019-11-03

Flight Controls - Main Slat Track Assemblies - Identification / Replacement

Federal Aviation Administration Airworthiness Directive 2019-11-03 is a final rule addressing certain Boeing 737-700C, -800, and -900ER series airplanes. It mandates inspection and maintenance record checks of main slat track assemblies to identify those affected by hydrogen embrittlement due to incorrect manufacturing. The directive aims to prevent potential failure of the main slat track assemblies that could lead to slat departure and compromise flight safety.

Airworthiness Directive

Boeing 737700C800900ER

EASA AD US-2019-03-26

Superseded by FAA AD 2021-26-17

FAA Airworthiness Directive 2019-03-26 is a final rule addressing certain Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates modifications to passenger service units (PSUs) and life vest panels to prevent detachment during accidents by replacing and installing new lanyards and inspecting torsion spring assemblies. This directive aims to enhance passenger safety by ensuring PSUs remain securely attached during emergencies.

Airworthiness Directive

Boeing 737600700700C800900900ER

EASA AD US-2019-03-07

Wings - Krueger Flap Bullnose Attachment Hardware - Inspection

Airworthiness Directive 2019-03-07 is a final rule issued by the Federal Aviation Administration addressing The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates inspections of the Krueger flap bullnose attachment hardware to detect discrepancies and missing hardware that could cause the bullnose to detach during flight. The directive expands applicability to all airplanes with Krueger flap bullnose installations due to the rotable nature of the parts.

Airworthiness Directive

Boeing 737600700700C800900900ER