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FAA William J. Hughes Technical Center for Advanced Aerospace

rosaP Repository & Open Science Access Portal

Technical reports, Tech Notes, and articles that document the FAA’s applied research, engineering, testing and evaluation, and resulting scientific solutions addressing current and future air transportation challenges in collaboration with industry, academia, and other government partners. For more content, visit the FAA Technical Library https://www.faa.gov/about/office_org/headquarters_offices/ang/library/. Bookmark this collection:https://rosap.ntl.bts.gov/collection_faa_tl or https://doi.org/10.21949/1530830.

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Showing 21 - 40 of 727 results
  • Survey of PerformanceBased and RiskBased Oversight Strategies and Methods
    Survey of Performance-Based and Risk-Based Oversight Strategies and Methods
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-12-01 | PDF
    Recent changes in aviation safety oversight in the Federal Aviation Administration (FAA) and globally have incorporated performance-based oversight (PBO) that assesses an organization's management system effectiveness in achieving defined safety objectives. PBO is intended to be complementary to traditional compliance-based oversight that examines ...
  • Electronic Institutional Review Board eIRB Usability Evaluation
    Electronic Institutional Review Board (eIRB) Usability Evaluation
    St. Amour, Elena ;
    Wark, Priscilla
    2025-11-01 | PDF
    The process of submitting an application for research involving human participants to the Institutional Review Board (IRB) at the Federal Aviation Administration (FAA) William J. Hughes Technical Center for Advanced Aerospace needs modernization. We conducted an evaluation of the first iteration of a newly proposed electronic Institutional Review B ...
  • A State of Charge Analysis of Power Banks 385 Wh Shipped by Air
    A State of Charge Analysis of Power Banks (38.5 Wh) Shipped by Air
    Keslar, Daniel
    2025-10-01 | PDF
    UN 3480, lithium-ion batteries (batteries not packed with or contained in equipment) are forbidden on passenger carrying aircraft and cannot exceed a 30% state of charge (SoC) when transported on cargo aircraft. Lithium-ion power banks are included in this requirement. In December 2024, an undeclared package containing three lithium-ion power banks ...
  • ProcessingProperty Relationship of OxideOxide Composites
    Processing-Property Relationship of Oxide/Oxide Composites
    National Institute for Aviation Research (U.S.)  ...
    2025-10-01 | PDF
    A process-property relationship analysis has been undertaken on a set of Axiom Material AX-7800 data obtained under a program to develop the framework for qualification of oxide/oxide ceramic matrix composite materials. The data show high variability in physical and mechanical properties, resulting in unacceptably low B-basis allowable when using t ...
  • ULTEM 9085 Material Extrusion Polymer Based Additive Manufacturing Process Parameter Effects on Mechanical Performance
    ULTEM 9085™ Material Extrusion Polymer Based Additive Manufacturing: Process Parameter Effects on Mechanical Performance
    Tomblin, John ;
    Tay, Neville
    2025-08-01 | PDF
    The project objective is to correlate the changes in microstructure caused by the adjustment of high-impact process parameters to specimen tensile mechanical performance using ASTM D638 Type 1 static tensile tests. This project evaluated the effects of high-impact process parameters on the mechanical performance of additive manufactured ULTEM 9085 ...
  • Aviation Safety Oversight System Tools Technologies and Techniques
    Aviation Safety Oversight System Tools, Technologies, and Techniques
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-08-01 | PDF
    The FAA launched a Future of Oversight research initiative to meet regulatory and safety oversight challenges with the rapidly evolving U.S. National Airspace System with new aircraft technologies, emerging operations, and increasingly complex and global aviation industry operations and infrastructure. This initiative is intended to inform FAA poli ...
  • Survey of PerformanceBased and RiskBased Oversight Strategies and Methods
    Survey of Performance-Based and Risk-Based Oversight Strategies and Methods
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-08-01 | PDF
    Recent changes in aviation safety oversight in the Federal Aviation Administration (FAA) and globally have incorporated performance-based oversight (PBO) which assess organization management system effectiveness in achieving defined safety objectives. PBO is intended to be complementary to traditional compliance-based oversight which examines confo ...
  • Development of a Titanium Alloy Ti6Al4V Generalized Yield Surface Material Model Used in LSDYNA
    Development of a Titanium Alloy Ti-6Al-4V Generalized Yield Surface Material Model Used in LS-DYNA
    Ragone, Fabrizio
    2025-06-01 | PDF
    This thesis is part of a collaborative effort involving George Mason University (GMU), The Ohio State University (OSU), the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC), and the Federal Aviation Administration (FAA) under the Aircraft Catastrophic Failure Prevention Program (ACFPP). The primary objective of this ...
  • Ductile Fracture of Ti6Al4V Titanium Alloy Under Compressive Stress States
    Ductile Fracture of Ti-6Al-4V Titanium Alloy Under Compressive Stress States
    White, Ethan J.
    2025-05-07 | PDF
    A notoriously challenging modeling and simulation problem is the impact physics of jet engine debris striking the engine case during a fan blade-out or rotor-burst event. The multiplicity of potential failure modes resulting from the impact and subsequent penetration of high-speed engine fragments advances the challenge. The ductile fracture model ...
  • AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft LossofLoad
    AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft Loss-of-Load
    Aerospace Industries Association of America
    2025-05-01 | PDF
    In 2015, the FAA requested the Aerospace Industries Association form a voluntary advisory group related to gas turbine overspeed events resulting from shaft loss-of-load. Motivating the request at the time were engine applicant’s requests to be relieved of considering certain elements of the shaft system from failure consideration in determining th ...
  • Advanced Early Fire Detection in Aircraft Cargo with MACD And Passive UHF RFID Temperature Sensing While Maintaining False Alarm Resistance
    Advanced Early Fire Detection in Aircraft Cargo with MACD And Passive UHF RFID Temperature Sensing While Maintaining False Alarm Resistance
    Karp, Matthew
    ORCID ICON IMG
    2025-04-01 | PDF
    This study introduces a novel approach to enhance fire protection in aircraft cargo compartments, motivated by the urgency to address catastrophic in-flight fires recorded between 2006 and 2011. The method uses ultra-high frequency (UHF) radio frequency identification (RFID) temperature sensing tags and advanced algorithmic analysis to enhance fire ...
  • Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Maurya, Ashutosh
    ORCID ICON IMG
    2025-04-01 | PDF
    An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact analysis of composite materials has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and the National Aeronautics and Space Administration (NASA). The developed material model has been implemented into LS-DYNA®, a comm ...
  • Analysis of the Ground Collision Avoidance System Within NASAs Expandable Vehicle Autonomy Architecture
    Analysis of the Ground Collision Avoidance System Within NASA’s Expandable Vehicle Autonomy Architecture
    Hook, Loyd R ;
    Urban, Jude M
    2025-03-01 | PDF
    This document provides comprehensive methodology and results in the evaluation of a Ground Collision Avoidance System (GCAS) tuned for a general aviation airplane. The GCAS under investigation was designed by the Armstrong flight research center at the National Aeronautics and Space Administration (NASA). This research focused on two characteristic ...
  • Aircraft Air Quality and Bleed Air Contamination Detection: Phase 2, Volume 2 [supporting dataset]
    Fox, Richard B ;
    Jones, Byron W
    2025-02-14 | ZIP
    The purpose of this project was to provide a data driven process to identify sensor technologies with the potential for detecting and identifying low levels of contaminants that may occasionally be present in aircraft engine bleed air supplies. Bleed air from a ground-based aircraft propulsion engine and an auxiliary power unit (APU) were used to s ...
    Dataset Supporting Files
  • Structurally Distributed Aircraft Battery
    Structurally Distributed Aircraft Battery
    Kumar, Jitendra ;
    Morgan, Alexander
    2025-02-01 | PDF
    Lithium-ion batteries (LIBs) are critical to the early adoption of electrified small aircraft because LIBs can provide the required energy, power, and cycle life. However, safety is still a concern, especially in dangerous situations like aircraft crashes or operations in harsh conditions. If damaged, the battery can release stored energy fast, lea ...
  • Field Validation of the IndoorOutdoor Method for Measurement of Noise Reduction
    Field Validation of the Indoor-Outdoor Method for Measurement of Noise Reduction
    Sharp, Ben ;
    Cox, Eric
    2025-01-01 | PDF
    The Federal Aviation Administration’s (FAA) Airport Improvement Program (AIP) handbook outlines guidance for the funding of noise mitigation projects and the accuracy of existing noise reduction measurements of a structure. Prior research by the FAA to develop best practices for measuring the aircraft noise reduction of building façades resulted in ...
  • Aircraft Air Quality and Bleed Air Contamination Detection OnWing Tests Sensor Technologies and Chemical Sampling Phase 2 Volume 2
    Aircraft Air Quality and Bleed Air Contamination Detection; On-Wing Tests, Sensor Technologies, and Chemical Sampling (Phase 2, Volume 2)
    Fox, Richard B ;
    Jones, Byron W
    2025-01-01 | PDF
    The purpose of this project was to provide a data driven process to identify sensor technologies with the potential for detecting and identifying low levels of contaminants that may occasionally be present in aircraft engine bleed air supplies. Bleed air from a ground-based aircraft propulsion engine and an auxiliary power unit (APU) were used to s ...
  • Liion Battery Safety under HighSpeed Impact Diagnosis Prognosis and Risk Mitigation
    Li-ion Battery Safety under High-Speed Impact: Diagnosis, Prognosis and Risk Mitigation
    Kumar, Jitendra
    2025-01-01 | PDF
    Lithium-ion batteries (LIBs) are critical to the early adoption of electrified small aircraft because they can provide the required energy, power, and cycle life. However, safety is still a concern, especially in dangerous situations like aircraft crashes or operations in harsh conditions. If damaged, the battery can release stored energy fast, lea ...
  • An Evaluation of Fire Containment Products for Inflight Fires Resulting from Portable Electronic Devices PEDs
    An Evaluation of Fire Containment Products for Inflight Fires Resulting from Portable Electronic Devices (PEDs)
    Keslar, Daniel ;
    Sica, Joe
    2024-12-01 | PDF
    The number of thermal runaway incidents from portable electronic devices (PEDs) in the aircraft cabin is growing at a notable rate. Recent data indicates that lithium battery incidents occur on average more than once per week on passenger aircraft. In response to this problem, many airlines have adopted the use of fire containment products as a mea ...
  • Electric Vertical Takeoff and Landing eVTOL Downwash and Outwash Surveys
    Electric Vertical Takeoff and Landing (eVTOL) Downwash and Outwash Surveys
    Muia, Maria J ;
    Stanley, Joshua
    2024-12-01 | PDF
    As part of the Federal Aviation Administration’s (FAA) effort to establish vertiport design guidance for facilities intended to accept powered lift and special class rotorcraft, it is of growing importance to determine the risk factors related to vertical takeoff and landing (VTOL) operations and how to mitigate them. The airflow generated from the ...
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