EASA Regulations for McDonnell Douglas DC-9

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

EASA AD US-2026-13-15

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.

Jul 1, 2026

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

EASA AD US-2023-12-15

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.

Jun 23, 2023

EASA SIB 2009-200700016

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.

Sep 2, 2009

Safety Information BulletinMaintenanceSafety MgmtMcDonnell Douglas DC-9Boeing

EASA SIB 2008-83

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.

Dec 10, 2008

Safety Information BulletinMaintenanceSafety MgmtAirbus A300-600Airbus A310Airbus A320Boeing 707Boeing 727Boeing 737Boeing 747Boeing 757Boeing 767McDonnell Douglas DC-9McDonnell Douglas DC-10McDonnell Douglas MD-11

EASA SIB 2008-04R1

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.

Jul 17, 2008

Safety Information BulletinMaintenanceSafety MgmtBoeing 737-100Boeing 737-200McDonnell Douglas DC-9McDonnell Douglas MD-88McDonnell Douglas MD-90-30