Contributor - Accidents and Regulations

Contributor - Accidents and Regulations

Gordon Gilbert

In a <a href="https://www.faa.gov/other_visit/aviation_industry/airline_operators/airline_safety/info/all_infos/InFO23007.pdf">recent information for operators</a> (InFo), the FAA cautions flight crews and ground deicing service providers to refrain from using “Table B.2.4 Amount of Fluid for Anti-Icing with Thickened Fluids” published in SAE AS6286 (Revision B) as the basis for determining if the aircraft anti-icing fluid has been applied effectively.
According to the InFo, “expected holdover times (HOT) may not be achieved if the quantities provided in table B.2.4 are used as the basis for determining adequate coverage. Table B.2.4 does not reflect new fluid formulations that increase viscosity and fluid thicknesses, requiring greater volumes of anti-icing fluid (but improve HOTs).” Revision C of AS6286 was published in March 2023 and does not contain Table B.2.4.
“Air operators and de/anti-icing service providers should familiarize themselves with the information contained in this InFO and be aware of the adequate application of anti-icing fluids to ensure the expected holdover time is achieved,” cautioned the FAA. “In particular, anti-icing fluids are to be applied so that it can completely cover the surfaces and form a uniform coating. Enough anti-icing has been applied when it can be visually confirmed that the anti-icing fluid is just beginning to run off the leading and trailing edges of the surfaces.”
Meanwhile, in a&nbsp;<a href="https://www.faa.gov/documentLibrary/media/Notice/N_8900.667.pdf" style="color:#0563c1; text-decoration:underline">separate notice</a>, FAA deicing&nbsp;program information and guidance documents are being relocated. Starting with the coming winter season, “Information contained in previous versions of this notice now resides in the general information document, located on the aircraft ground deicing web page,” said the agency. “Revisions to HOTs can now be found in the summary of changes to holdover time guidelines and associated documents for winter 2023–2024, also located on the ground deicing web page.
&nbsp;

News and information on safety procedures and concerns.

FAA Updates Basis for Deicing Holdover Times

The agency's new guidance changes the calculations on ice deterrence effectiveness.

The FAA's new deicing holdover guidance changes the calculations on ice deterrence effectiveness.

2024 Corporate Aviation Leadership Summit

Amy Wilder

News and issues relating to business, corporate and private aviation, primarily regarding turbine-engine-powered airplanes and helicopters. Subjects include aircraft, engines, maintenance, operations, personnel, acquisitions, accidents, safety, security, and training.

Altitude and course deviation, traffic proximity remain top categories

ACSF Data Shows Stable Bizav Risk Amid 2026 Pressures

Kerry Lynch

News and issues relating to international air transport and cargo carriers, national airlines and regional airlines, including aircraft, engines, personnel, acquisitions, accidents, safety, security and training.

Essential news and analysis on the defense aerospace business. Your trusted source for new and ongoing programs and requirements in military aircraft (manned and unmanned), engines, avionics, weapons and associated systems, including ground-based air defense.

Aircraft remained within separation guidance but neared each other after the presidential helicopter was unable to alert ATC

Faulty Comms Preceded Marine One/Envoy Close Call

Graham leaving agency within months of confirmation to another term

NTSB Vice Chair Michael Graham To Retire October 2

Stuart “Kipp” Lau

News about bills, laws, regulations and other governmental decisions affecting aviation and aerospace. Topics include FAA re-authorizations, taxes on fuel and aviation activities, environmental legislation, ICAO decisions, governmental mediation of labor conflicts and World Trade Organization disputes and decisions.

UK CAA concerned over rise in unstable approaches continuing to land

AINsight: Go-arounds Are a Normal and Expected Outcome

News about significant aircraft accidents and information from accident reports.

News and issues regarding all manner of civil and military rotorcraft and their powerplants, including helicopters, tilt rotors and unmanned air vehicles.

Helicopters more than twice as vulnerable to loss of visual reference accidents than airplanes

TSB: Rotorcraft More Prone To Loss-of-visual-reference Accidents

Charlotte Bailey

News about environmental issues relating to aircraft operations, including noise issues, emissisions, and regulations. See Fuel for biofuel.

News and issues relating to the aerospace industry that are related to the science, engineering and business of flight in space involving civil, industrial and military applications, and similar topics related to flight in the atmosphere of the Earth that are not covered more directly by other AINonline subject channels. In other words, both astronautical and aeronautical subjects, except for those aeronautical topics that are specifically covered elsewhere on this website.

More In Safety

ACSF Data Shows Stable Bizav Risk Amid 2026 Pressures

Altitude and course deviation, traffic proximity remain top categories

Faulty Comms Preceded Marine One/Envoy Close Call

Aircraft remained within separation guidance but neared each other after the presidential helicopter was unable to alert ATC

NTSB Vice Chair Michael Graham To Retire October 2

Graham leaving agency within months of confirmation to another term

AINsight: Go-arounds Are a Normal and Expected Outcome

UK CAA concerned over rise in unstable approaches continuing to land

TSB: Rotorcraft More Prone To Loss-of-visual-reference Accidents

Helicopters more than twice as vulnerable to loss of visual reference accidents than airplanes

EASA: Atmospheric Icing Insufficiently Understood

European air safety agency calls for more comprehensive studies into phenomenon

Embry-Riddle Introduces ‘Safer Skies’ Video Podcasts

First episode features three-time space shuttle veteranJanet Kavandi

Li-ion Thermal Runaways on the Rise in Aircraft Cabins

Numbers are rising and the risk of a serious incident is increasing

AIN Products

SUBSCRIPTIONS

RESOURCES

ABOUT AIN