EASA Regulations for McDonnell Douglas DC-9

5 airworthiness directives and regulations affecting McDonnell Douglas DC-9.

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New ADs and bulletins for McDonnell Douglas DC-9, 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 SIB 2009-200700016

Sep 2, 2009

Aircraft Current Limiters, Overhead Reading Light Switches and Coffeemaker Brew Trays - Produced without FAA production approval.

The FAA Safety Notification No. 2009-200700016 addresses the production of aircraft current limiters, overhead reading light switches, and coffeemaker brew trays without FAA production approval. The affected parts include current limiters (p/n FLLC-G4) and overhead reading light switches (p/n UA727-2A) used on McDonnell Douglas DC-9 and Boeing aircraft, as well as coffeemaker brew trays (p/n 64769-180-001). This notification informs aviation stakeholders about the unapproved production and distribution of these parts.

Safety Information Bulletin
  • McDonnell Douglas DC-9
  • Boeing

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 2008-04R1

Jul 17, 2008

Pratt & Whitney JT8D Series Engines Rotating Group Components - Notification of Unapproved Parts due to Theft

EASA Safety Information Bulletin 2008-04R1 notifies operators and manufacturers about unapproved rotating group components for Pratt & Whitney JT8D series engines due to theft. The affected parts, identified by specific part and serial numbers, are installed on aircraft including Boeing 737-100 and -200 series, as well as McDonnell Douglas DC-9, MD-88, and MD-90-30 models. The bulletin aims to raise awareness that these stolen parts should not be used in any aircraft or held as spares.

Safety Information Bulletin
  • Boeing 737-100
  • Boeing 737-200
  • McDonnell Douglas DC-9
  • McDonnell Douglas MD-88
  • McDonnell Douglas MD-90-30