EASA Regulations for Boeing 737-400

47 airworthiness directives and regulations affecting Boeing 737-400.

EASA AD US-2019-13-02

Fuselage - Lower Lobe Skin Panel Assemblies - Replacement / Inspection

FAA Airworthiness Directive 2019-13-02 is a final rule addressing certain Boeing 737-200, -200C, -300, -400, and -500 airplanes. It mandates replacement and detailed inspections of the fuselage lower lobe skin panel assemblies due to reports of cracking and findings of widespread fatigue damage. This directive aims to maintain structural integrity and prevent decompression risks.

Jul 24, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-09-01

Ice and Rain Protection - Pitot Anti-Icing System - Replacement / Test

Airworthiness Directive 2019-09-01 is a final rule issued by the Federal Aviation Administration addressing certain Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates replacement and testing of the pitot anti-icing system components to prevent misleading air data caused by the pitot heat switch not always being set to ON. The directive also requires installation of a junction box and wiring provisions to enhance system reliability.

Jun 26, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-10-03

Fuselage - Left and Right Side-Strut Support Fitting Lugs - Inspection

Federal Register Volume 84, Number 109 (June 6, 2019) is a final rule airworthiness directive issued by the FAA addressing all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive detailed and high frequency eddy current inspections of the left and right side-strut support fitting lugs to detect corrosion, cracks, or severed lugs. The directive aims to prevent potential failure of the side-strut support fitting joint and main landing gear attachment.

Jun 21, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-08-02

Fuselage - Fuselage Upper Frames, Side Frames, Fail-safe Chords, Inboard Chords, Frame Webs, Stringers - Inspection

Federal Aviation Administration Airworthiness Directive 2019-08-02 is a final rule addressing certain Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive inspections of fuselage upper frames, side frames, fail-safe chords, inboard chords, frame webs, and stringers due to reported cracking and the risk of widespread fatigue damage. The directive aims to ensure structural integrity and prevent potential uncontrolled decompression.

Jun 4, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-08-03

Fuselage - Section 43 Lower Lobe Frames - Inspection

Federal Aviation Administration Airworthiness Directive 2019-08-03 is a final rule addressing certain Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive detailed, general visual, and high frequency eddy current inspections of the section 43 lower lobe frames between station 380 and station 520, as well as inspections to identify certain repairs and applicable on-condition actions. This directive aims to detect and mitigate frame web and integral inboard chord cracking below the passenger floor.

Jun 4, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-03-24

Fuselage - Overwing Emergency Exit Doors - Inspection

Federal Register Volume 84, Number 42 (March 4, 2019) Final Rule titled 'Fuselage - Overwing Emergency Exit Doors - Inspection' is an airworthiness directive issued by the FAA for certain Boeing 737-400 series airplanes. It addresses cracking found in the splice plate on the lower sill of the overwing emergency exit doors. The directive mandates repetitive inspections and necessary repairs to ensure continued structural integrity.

Apr 8, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-400

EASA AD US-2019-03-06

SUPERSEDED BY FAA AD 2020-17-04

FAA Airworthiness Directive 2019-03-06 is a final rule addressing certain Boeing 737-300, -400, and -500 series airplanes. It requires the installation of lanyard assemblies on passenger service units (PSUs) and, for some airplanes, on the life vest panels to prevent PSUs from detaching during survivable accidents. This directive aims to enhance cabin safety by reducing the risk of injury and obstruction during evacuations.

Mar 22, 2019

Airworthiness DirectiveSafety MgmtMaintenanceBoeing 737Boeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2019-01-06

Fuselage - Frame Web and Doubler - Inspection

The Federal Aviation Administration's Airworthiness Directive 2019-01-06 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates repetitive surface high frequency eddy current inspections of the fuselage frame web and doubler at body station 303.9, specifically at the stop fitting at stringer 16 left, to detect cracks. The directive aims to ensure structural integrity and prevent potential rapid decompression.

Mar 19, 2019

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EASA AD US-2018-21-08

Fuselage - Bulkhead Frame Web - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-21-08 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates repetitive inspections of the fuselage bulkhead frame web at station 259.5 due to detected cracking, and requires applicable on-condition corrective actions to maintain structural integrity.

Nov 6, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-18-03

Doors / Fuselage - Floor Beam Lower Chord and Door Stop Fittings - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-18-03 addresses certain Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates repetitive inspections of the floor beam lower chord and door stop fittings at the forward airstair door cutout to detect cracks. It aims to ensure structural integrity and prevent possible rapid decompression.

Oct 9, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-19-20

Fuselage - Frames and Stub Beams - Inspection / Repair

Airworthiness Directive 2018-19-20 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain Boeing Company Model 737-200, -300, -400, and -500 series airplanes. The directive mandates inspections and repairs related to cracking in fuselage frames and stub beams to ensure continued airworthiness and structural integrity.

Oct 9, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-200Boeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-18-13

Wings - Outboard Flap Tracks - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-18-13 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates inspections and repetitive overhauls of the wing outboard flap tracks due to reports of cracking in certain flanges and adjacent webs. This directive aims to ensure the structural integrity of the flap tracks to maintain safe flight control.

Oct 9, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-16-09

Fuselage - Frame Webs - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-16-09 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates repetitive high frequency eddy current inspections of fuselage frame webs at specific stations near the overwing emergency exits to detect cracks. The directive aims to ensure continued structural integrity and prevent rapid decompression.

Sep 10, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-17-23

Fuselage - Number 3 Windshield Assembly Aft Sill Web - Inspection

Federal Aviation Administration Airworthiness Directive 2018-17-23 is a final rule addressing all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive high frequency eddy current inspections of the number 3 windshield assembly aft sill web to detect cracking and requires applicable on-condition corrective actions. This directive aims to maintain structural integrity and safety of the affected windshield assembly components.

Sep 10, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-12-05

Wings - Rear Spar Web and Lower Chord - Inspection

Airworthiness Directive 2018-12-05 is a final rule issued by the Federal Aviation Administration (FAA) addressing all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive detailed inspections of the rear spar web and lower chord on both left and right wings due to reported cracks. The directive aims to ensure structural integrity and flight safety by detecting and correcting these cracks.

Jun 21, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-09-13

Wings - Main Landing Gear Support Fittings, Rear Spar and Inspar Upper Skin - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-09-13 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates inspections and corrective actions for cracking found in the wing inspar upper skin, rear spar upper chord, rear spar web, and main landing gear beam forward support fitting. It aims to ensure structural integrity and prevent potential fuel leaks and fire hazards.

Jun 19, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-10-12

Wings - Fuselage Keel Beam Upper Chords / Aft Vertical Stiffeners - Inspection

Airworthiness Directive 2018-10-12 is a final rule issued by the Federal Aviation Administration addressing all Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive high frequency eddy current and detailed inspections for cracking in aft vertical stiffeners and keel beam upper chords, along with applicable on-condition corrective actions. This directive aims to ensure structural integrity by detecting and mitigating fatigue cracks in critical wing fuselage components.

Jun 7, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-09-08

Fuselage - Frame Web of Air-Conditioning Support Brackets - Inspection

The Federal Aviation Administration's Airworthiness Directive 2018-09-08 addresses certain Boeing 737-200, -300, -400, and -500 series airplanes. This directive mandates inspections of the fuselage frame web near the air-conditioning support brackets to detect cracks that could compromise structural integrity. It aims to prevent potential rapid decompression and structural failure due to frame web cracking.

May 15, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-200Boeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-09-01

Wings - Main Landing Gear Beam Forward Support Fitting - Inspection

The Federal Aviation Administration Airworthiness Directive 2018-09-01 addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive inspections of the main landing gear beam forward support fitting due to reported cracks that could compromise structural integrity. This directive aims to prevent potential fuel leaks, structural failures, or main landing gear collapse.

May 3, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500

EASA AD US-2018-04-12

Fuel - Fuel Tank - Inspection / Revision of the Maintenance or Inspection Program

Airworthiness Directive 2018-04-12 is a final rule issued by the Federal Aviation Administration (FAA) addressing all Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This directive mandates modifications to fuel tank wiring to prevent electrical arcing and potential fuel tank explosions. It requires installation of shielded wire bundles and convoluted liners within fuel tank conduits and updates to the maintenance or inspection program to include specific airworthiness limitations.

Mar 27, 2018

Airworthiness DirectiveMaintenanceSafety MgmtBoeing 737Boeing 737-100Boeing 737-200Boeing 737-200CBoeing 737-300Boeing 737-400Boeing 737-500