Overview

NOM-91/2-SCT3-2022 establishes the installation specifications for Automatic Dependent Surveillance-Broadcasting (ADS-B) OUT equipment. This air navigation technology, based on satellite signals, enhances the safety and efficiency of air operations. The standard applies to all fixed-wing and rotary-wing aircraft operating in the controlled airspace of the Mexico FIR and the Mazatlán Oceánica FIR.

Equipment Requirements

Aircraft operating in controlled airspace must have version 2 ADS-B OUT equipment installed, compliant with the RTCA/DO-260B specification. The equipment must operate in transmit mode at all times unless an authorized deferral procedure is in place on the minimum equipment list. It should periodically transmit data including aircraft position, speed, altitude, identifier, and more, adhering to specific accuracy, integrity, latency, and design assurance levels.

Certification and Installation

Aircraft already equipped with ADS-B OUT since manufacture must have a type certificate issued and validated by the civil aviation authority. Aircraft needing to install this equipment should conduct a technical study, apply for a supplemental type certificate or service bulletin as appropriate, and obtain authorization from the civil aviation authority. Installation must be performed in an aircraft workshop and documented in the aircraft maintenance history.

Purpose of Regulation

This regulation aims to enhance aviation safety and efficiency in Mexico. By transitioning from ground-based radar surveillance to satellite-based procedures using ADS-B technology, the Mexican aviation sector seeks to improve airspace management, reduce runway incursion risks, enhance coverage and precision, and provide real-time aircraft position information to air traffic controllers and pilots. This technology not only boosts safety but also supports environmental protection by reducing airport congestion, noise pollution, emissions, and improving fuel efficiency.

Official Source

For more details, visit the Official Source - https://dof.gob.mx/nota_detalle.php?codigo=5718753&fecha=01/03/2024#gsc.tab=0.