Ground Deicing and Anti-Icing Procedures

Deicing Requirements for Part 135 Operators

AC 135-17 – Provides ground deicing and anti-icing procedures specific to Part 135 operators. It outlines pre-takeoff contamination checks, fluid application techniques, and FAA compliance for aircraft deicing operations.

AC 135-16 – Focuses on pilot responsibilities in deicing procedures. It explains how ice accumulation affects aircraft performance, proper use of deicing fluids, and operational best practices for winter weather flights.

AC 135-9 – Covers comprehensive deicing procedures for Part 135 operations, including holdover time calculations, contamination checks, and safe winter operations.

FAA Regulations for Ground Deicing Compliance

FAA 8900.1, Vol. 6, Ch. 2, Sec. 15 – Provides FAA inspector guidance on overseeing deicing programs. It details inspection requirements, training standards, and regulatory compliance for airline deicing operations.

AC 120-58 – Covers pilot responsibilities for deicing and anti-icing operations. It includes holdover times, assessing aircraft surfaces before takeoff, and recognizing icing conditions during pre-flight checks.

AC 120-60B – Focuses on ground deicing program requirements for air carriers. It outlines FAA-mandated checklists, deicing crew training, and procedural consistency in winter operations.

In-Flight Icing Protection and Management

Aircraft Systems for In-Flight Ice Protection

AC 20-117 – Discusses icing detection systems and their effectiveness in recognizing hazardous ice buildup. It provides recommendations for certification, testing, and operational procedures for ice protection systems.

AC 20-147A – Covers cold weather operations and engine ice protection systems. It details deicing fluid compatibility, turbine and piston engine deicing, and best practices for extreme cold weather operations.

AC 120-107 – Provides in-flight icing management techniques and guidance on effectively using anti-icing and deicing systems. It includes procedures for recognizing in-flight icing hazards and safe exit strategies from icing conditions.

Advanced Aircraft Deicing Technologies

AC 120-112 – Discusses advanced aircraft deicing technologies and automation systems. It explains new-generation deicing methods, fluid application automation, and predictive weather modeling for deicing decision-making.

Aircraft Certification and Safety Standards for Icing Conditions

Aircraft Icing Certification and Testing

AC 20-73A – Provides icing certification and testing requirements for aircraft systems. It explains how aircraft are tested for ice protection system effectiveness, including ground and in-flight icing scenarios.

AC 120-89 – Discusses risk assessment approaches for icing conditions in ground and flight operations. It explains how pilots and dispatchers can evaluate icing risks and apply mitigative strategies.

Runway Safety and Icing Risk Mitigation

AC 90-95 – Provides guidance on preventing runway excursions due to ice contamination. It includes techniques for maintaining aircraft control during takeoff, landing, and taxiing in icy conditions.

AC 91-79B – Discusses runway overrun prevention strategies in winter conditions. It covers approach speed management, braking techniques, and using friction reports for runway assessments.