EASA Regulations for Boeing 707

9 airworthiness directives and regulations affecting Boeing 707.

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New ADs and bulletins for Boeing 707, summarized like the ones below, every Monday.

EASA AD US-2026-13-15

Jul 1, 2026

Navigation - 5G C-Band wireless Broadband Interference with Radio Altimeter System when operating in Canadian airspace - Amendment

The document titled "Navigation - 5G C-Band wireless Broadband Interference with Radio Altimeter System when operating in Canadian airspace - Amendment" is a Federal Aviation Administration (FAA) final rule airworthiness directive (AD 2026-13-15) addressing interference issues affecting radio altimeters on various Boeing aircraft models including 707, 717, 727, DC-8, DC-9, DC-10, MD-10, MD-11, MD-81 through MD-88, and MD 90-30 airplanes. This AD responds to increased 5G Lower C-Band wireless broadband interference in Canadian airspace that compromises radio altimeter reliability and the proper functioning of critical airplane systems during approach, landing, and go-around phases. The directive mandates revisions to the airplane flight manual (AFM) to restrict certain operations dependent on radio altimeter data when operating in Canadian airspace.

Airworthiness Directive
  • Boeing 707
  • Boeing 717
  • Boeing 727
  • Boeing DC-10
  • Boeing DC-8
  • Boeing DC-9
  • Boeing MD-10
  • Boeing MD-11
  • Boeing MD-88
  • Boeing MD-90
  • McDonnell Douglas DC-8
  • McDonnell Douglas DC-9
  • McDonnell Douglas DC-10
  • McDonnell Douglas MD-10
  • McDonnell Douglas MD-11
  • McDonnell Douglas MD-81
  • McDonnell Douglas MD-82
  • McDonnell Douglas MD-83
  • McDonnell Douglas MD-84
  • McDonnell Douglas MD-85
  • McDonnell Douglas MD-86
  • McDonnell Douglas MD-87
  • McDonnell Douglas MD-88
  • McDonnell Douglas MD-90-30

EASA AD US-2023-12-15

Jun 23, 2023

Aircraft Flight Manual - Limitations / Operating Procedures - Amendment

The Aircraft Flight Manual - Limitations / Operating Procedures - Amendment is a final rule issued by the Federal Aviation Administration (FAA) that supersedes Airworthiness Directive 2022-09-18. It applies to Boeing Model 707, 717, 727, DC-8, DC-9, DC-10, MD-10, MD-11, MD-81, MD-82, MD-83, MD-87, MD-88, and MD 90-30 airplanes. The amendment requires revisions to the airplane flight manual to address interference from 5G C-Band wireless broadband operations affecting certain flight systems during approaches and go-arounds.

Airworthiness Directive
  • Boeing 707
  • Boeing 717
  • Boeing 727
  • Boeing DC-10
  • Boeing DC-8
  • Boeing DC-9
  • Boeing MD-10
  • Boeing MD-11
  • Boeing MD-88
  • Boeing MD-90
  • McDonnell Douglas DC-8
  • McDonnell Douglas DC-9
  • McDonnell Douglas DC-10
  • McDonnell Douglas MD-10
  • McDonnell Douglas MD-11
  • McDonnell Douglas MD-81
  • McDonnell Douglas MD-82
  • McDonnell Douglas MD-83
  • McDonnell Douglas MD-87
  • McDonnell Douglas MD-88
  • McDonnell Douglas MD 90-30

EASA AD US-2022-25-01

Jan 13, 2023

Wings - Center Wing Box Rear Spar and Lower Skin - Inspection

The Federal Aviation Administration's Airworthiness Directive 2022-25-01 addresses structural cracking issues in the center wing box rear spar and lower skin on all Boeing Model 707 and Model 727 airplanes. This directive requires repetitive inspections and sealant applications to detect and mitigate cracking that could compromise the structural integrity of these aircraft. The AD was prompted by findings of similar cracking on a Boeing Model 737-300 airplane and a cross-model review indicating susceptibility in the 707 and 727 models.

Airworthiness Directive
  • Boeing 707
  • Boeing 727
  • Boeing 737-300

EASA AD US-2020-03-11

Jan 14, 2022

Fuel - Fuel Quantity Indicating System - Modification

EASA Decision to adopt FAA AD 2020-03-11 is an airworthiness directive addressing the modification of the fuel quantity indicating system (FQIS) on certain Boeing 707, 720, and 720B aeroplanes. The directive aims to prevent the development of an ignition source inside the center fuel tank caused by electrical fault conditions. Although no affected aircraft are currently registered in EASA member states, the decision aligns with FAA safety measures.

Airworthiness Directive
  • Boeing 707
  • Boeing 720
  • Boeing 720B

EASA AD US-2018-19-21

Nov 2, 2018

Fuel - Maintenance or Inspection Program - Revision

Airworthiness Directive 2018-19-21 is a final rule issued by the Federal Aviation Administration affecting all Boeing Model 707, 720, and 720B series airplanes. It requires revising the maintenance or inspection program to incorporate new airworthiness limitations related to fuel system ignition prevention. This directive addresses safety concerns identified through manufacturer fuel system reviews.

Airworthiness Directive
  • Boeing 707
  • Boeing 720
  • Boeing 720B

EASA AD US-2018-19-32

Nov 2, 2018

Nacelles / Pylons - Nacelle Strut Spar, Overwing Fittings and Diagonal Braces / Fittings - Inspection / Replacement

Federal Aviation Administration Airworthiness Directive 2018-19-32 is a final rule applicable to all Boeing Model 707, 720, and 720B series airplanes. It addresses safety concerns related to fractures in the midspar fitting of nacelle strut spars, which could lead to engine separation. The directive mandates repetitive inspections and replacement of certain nacelle strut spar, overwing fittings, diagonal braces, and associated components to ensure structural integrity.

Airworthiness Directive
  • Boeing 707
  • Boeing 720
  • Boeing 720B

EASA SIB 2010-32

May 25, 2011

WITHDRAWN - REPLACED BY EASA AD 2011-0043

EASA Safety Information Bulletin 2010-32 is an informational bulletin addressing the potential loss of ATC transponder transmissions caused by a loose resistor connection in Gables Engineering Inc ATC/TCAS control panels, specifically the G7490, G7492, and G7493 series. These control panels are installed on various aircraft types including Airbus A310, ATR 42, BAE Systems BAe146, Boeing 707 through 777 series, Fokker F28, Lockheed Hercules and Tristar, McDonnell Douglas DC and MD series, and Sabreliner NA-265 series. The bulletin provides guidance but does not mandate corrective action.

Safety Information Bulletin
  • Airbus A310
  • ATR 42
  • BAE Systems BAe146
  • Boeing 707
  • Boeing 717
  • Boeing 727
  • Boeing 737
  • Boeing 747
  • Boeing 757
  • Boeing 767
  • Boeing 777
  • Fokker F28
  • Lockheed Hercules
  • Lockheed Tristar
  • McDonnell Douglas DC series
  • McDonnell Douglas MD series
  • Sabreliner NA-265

EASA SIB 2008-83

Dec 10, 2008

Failure of USDOT Type 3HT Passenger Oxygen Cylinder

EASA Safety Information Bulletin SIB No: 2008-83 is an advisory document addressing the failure of USDOT Type 3HT passenger and crew stationary oxygen cylinders. It highlights a decompression incident on a Qantas Boeing 747-400 caused by a ruptured oxygen cylinder with part number 10003367, used on various aircraft including Airbus A300-600, A310, A320 series, Boeing 707, 727, 737, 747, 757, 767 series, and McDonnell Douglas DC-9, DC-10, and MD-11 series. The bulletin informs operators and maintenance organizations about the potential risk and ongoing investigation.

Safety Information Bulletin
  • Airbus A300-600
  • Airbus A310
  • Airbus A320
  • Boeing 707
  • Boeing 727
  • Boeing 737
  • Boeing 747
  • Boeing 757
  • Boeing 767
  • McDonnell Douglas DC-9
  • McDonnell Douglas DC-10
  • McDonnell Douglas MD-11

EASA SIB 2008-25

Apr 1, 2008

WITHDRAWN - FAA UPN TRANSFERRED TO EASA SUP WEBPAGE

EASA Safety Information Notice No. 2008-25 is an informational notice regarding Main Landing Gear (MLG) truck beams that have been improperly maintained and returned to service. It specifically affects Boeing 707, 747, 757, and 767 aircraft equipped with the identified MLG truck beams. The notice references the FAA Unapproved Parts Notification No. 2008-S20080110024, which details the investigation findings.

Safety Information Bulletin
  • Boeing 707
  • Boeing 747
  • Boeing 757
  • Boeing 767