FAA

FAA Sets New Icing Standards for New Transport Aircraft

"While flying is already incredibly safe, I want passengers to know that we're setting even higher standards for new airplanes so they can fly safely in icing conditions," U.S. Transportation Secretary Anthony Foxx said.

The Federal Aviation Administration issued a final rule this week expanding the coverage of its icing certification standards. The revised standards require U.S. manufacturers to show that transport airplanes can operate safely in freezing drizzle or freezing rain, the icing environment known as "supercooled large drops," or SLD. The standard also includes ice crystal weather conditions.

FAA's announcement of the rule said "SLD is less common than standard small droplet icing and can form ice on the airplane that exceeds the capability of current ice protection systems. The SLD could also severely impact the airplane's performance and handling characteristics. Pilots usually encounter ice crystals, which can clog external air data sensors or lead to ice buildup in an engine, while they are flying around thunderstorms."

"While flying is already incredibly safe, I want passengers to know that we're setting even higher standards for new airplanes so they can fly safely in icing conditions," said U.S. Transportation Secretary Anthony Foxx.

The final rule follows a proposed rule that FAA issued in June 2010 and is based on recommendations from FAA's Aviation Rulemaking Advisory Committee and the National Transportation Safety Board. The rule also is based on extensive research and flight testing. When effective within 60 days, it will require certain new transport category aircraft that are most affected by SLD icing conditions to meet updated safety standards, and it adds requirements for airplane performance and handling qualities in SLD conditions for aircraft that have a takeoff weight of less than 60,000 pounds or have reversible flight controls – a direct mechanical link from the control lever to the flight control surface, unlike hydraulic power. FAA is also mandating changes in the icing certification requirements for engines, engine installations, and some airplane systems on all transport airplanes, such as angle of attack and airspeed indicating systems. These systems must be able to perform in freezing rain, freezing drizzle, mixed phase, and ice crystal conditions.

"This rule assures that our future U.S. fleet will be able to safely withstand unexpected encounters with icing conditions," FAA Administrator Michael Huerta said.

Download Center

  • Lone Worker Safety Guide

    As organizations digitalize and remote operations become more commonplace, the number of lone workers is on the rise. These employees are at increased risk for unaddressed workplace accidents or emergencies. This guide was created to help employers better understand common lone worker risks and solutions for lone worker risk mitigation and incident prevention.

  • Online Safety Training Buyer's Guide

    Use this handy buyer's guide to learn the basics of selecting online safety training and how to use it at your workplace.

  • COVID Return-to-Work Checklist, Fall 2021

    Use this checklist as an aid to help your organization return to work during the COVID-19 pandemic in a safe and healthy manner.

  • SDS Buyer's Guide

    Learn to make informed decisions while searching for SDS Management Software.

  • Risk Matrix Guide

    Risk matrices come in many different shapes and sizes. Understanding the components of a risk matrix will allow you and your organization to manage risk effectively.

  • Industry Safe

Featured Whitepapers

OH&S Digital Edition

  • OHS Magazine Digital Edition - November December 2021

    November December 2021

    Featuring:

    • GAS DETECTION
      How to Streamline Gas Detector Maintenance
    • OSHA TOP 10
      OSHA's Top 10 Most Frequently Cited Standards for FY 2021
    • PROTECTIVE APPAREL
      How PPE Can Help You Deal with the Harsh Condition of Winter
    • HEARING PROTECTION
      Tackling Hearing Protection in the Workplace
    View This Issue