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Guide for Aviation Medical Examiners

Special Issuances
AME Assisted - All Classes - Aortic Insufficiency

AME Assisted Special Issuance (AASI) is a process that provides Examiners the ability to re-issue an airman medical certificate under the provisions of an Authorization for Special Issuance of a Medical Certificate (Authorization) to an applicant who has a medical condition that is disqualifying under Title 14 of the Code of Federal Regulations (14 CFR) part § 67.

An FAA physician provides the initial...

General Aviation and Part 135 Activity Surveys - CY 2024

Chapter l: Historical General Aviation and Air Taxi Measures

  • Table 1.1 – GENERAL AVIATION AND PART 135 NUMBER OF ACTIVE AIRCRAFT BY AIRCRAFT TYPE 2013-2024
  • Table 1.2 – GENERAL AVIATION AND PART 135 NUMBER OF ACTIVE AIRCRAFT BY PRIMARY USE 2013-2024 (AIRCRAFT IN THOUSANDS)
  • Table 1.3 – GENERAL AVIATION AND PART 135 TOTAL HOURS FLOWN BY AIRCRAFT TYPE 2013-2024 (HOURS IN THOUSANDS)
  • Table 1.4 – GENERAL AVIATION AND PART 135 TOTAL HOURS FLOWN

Designee Management System (DMS)

The Designee Management System (DMS) serves as a unified AVS platform for managing every facet of the lifecycle of the Administrator's individual representatives, also known as designees. The AVS DMS is the culmination of several years of effort to consolidate independent designee management policies into a comprehensive AVS-level policy, providing a holistic approach to the oversight and management of designees.

Ben Supko

Associate Administrator, Security and Hazardous Materials Safety Organization (Acting)

Tina Amereihn

Ben Supko is the acting Associate Administrator for Security and Hazardous Materials Safety (ASH). Supko is responsible for implementing and maintaining the Federal Aviation Administration's programs focused on identifying, analyzing, and responding...

Low Flow / Optimized Flow Oxygen Systems for Passengers

Monday, January 12, 2026

FAA Office of Aerospace Medicine 
Civil Aerospace Medical Institute

Report No: DOT/FAA/AM-25/52

Title and Subtitle: Low Flow / Optimized Flow Oxygen Systems for Passengers – (OFOS) - A Physiologic Inquiry into Emergency Supplemental Oxygen Supply Needs and Procedures

Report Date: 9/1/2025

Authors: Dr. James E. Campbell (ORCID 0000-0002-4062-4710) Dr. Susan M. Jay (ORCID 0000-0002-1331-0396)

Abstract: The OFOS study evaluated SpO2 values and oxygen flow rates via FAA-approved phase-dilution passenger oxygen masks at simulated cabin altitudes between 12K’ and 45K’. Results favor establishment of performance-based, physiological criteria (e.g., range of SpO2 values) that can be used as a minimum performance standard for the minimum mass flow of supplemental oxygen to a passenger mask for adequate hypoxia protection. OFOS data demonstrate significantly higher stable human blood oxygenation levels are maintained through use of a phase-dilution passenger oxygen mask than is required by 14 CFR 25.1443(c)(2) regulation, and a brief transit as a passenger to 45k’ while breathing oxygen from a PAX mask is tolerable (SpO2 does not fall below 14 CFR 25.1443 (c)(2) regulation guidelines). OFOS data support, 1) 14 CFR 25.1443(c)(2) regulation modification in favor of SpO2 focus, 2)use of less oxygen as a result of SpO2 focused findings, 3) fuel/cost-savings, 4) less CO2 emissions, and 5) evidence that passengers are adequately protected under circumstances of a gradual decompression to 45K’ pressure-altitude if exposed for less than 1 minute (validation of FAA Memorandum ANM-03-112-16 (24 MAR 2006)). As a result of this evidence, if more aircraft are type-certified for 45K’ flight, then overall safety will improve as a result of decongested NAS national airspace.

Key Words: Passenger Oxygen Mask Continuous Flow Pressure Altitude Hypobaric Chamber Tracheal Partial Pressure 8025A Ernsting 25.841 25.1443 TSO C64a Decompression TPP Blood Saturation SpO2 45000 45k hematocrit hemoglobin physiology AS5722 human PAX

No. of Pages: 75

January/February 2026 issue of FAA Safety Briefing magazine

Getting To Know the General Aviation Joint Safety Committee

The January/February 2026 issue of FAA Safety Briefing magazine focuses on the General Aviation Joint Safety Committee (GAJSC), highlighting their comprehensive and data-driven approach toward improving aviation safety.

Community Engagement – Fort Myers Southwest Florida

The Federal Aviation Administration (FAA) is proposing to modify the Class C airspace over Fort Myers Southwest Florida International Airport (RSW) in Florida. Under the proposed changes, existing flight paths would not change but where pilots are required to interact with Air Traffic Control would expand. The airspace change is being proposed to better manage the complexity and volume of aviation activities in the area. The purpose of the meeting is to ask for comments on the proposal’s effect on local aviation operations.

Ryan Almasy

Acting Deputy Regional Administrator, Southern Region

Ryan Almasy began serving as the Acting Deputy ryan almasy headshotRegional Administrator for the FAA’s Southern Region in June of 2025.