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Winter and Cold-Weather Procedures

Operational Insight

October 23, 2025

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Winter and Cold-Weather Procedures

A seasonal reminder to review winter and cold-weather procedures, de-icing fluids, cold-temperature altitude corrections, and destination NOTAMs.

General

A business jet taxiing on a snow-covered runway during cold-weather winter operations

It's that time of year again — the winter season is right around the corner, and it has been a while since we reviewed winter and cold-weather procedures. It's time to get out the AFM and Operations Manuals and review procedures for the aircraft we fly. International flying adds challenges to be considered.

Be familiar with the types of de-ice and anti-ice fluids acceptable for your aircraft. When planning your trip, ensure that your destination has acceptable fluids and that the processes used are compatible with your aircraft. Work with your handler to arrange de-icing charges in a timely manner, and be aware of how de-icing procedures may affect A-CDM timings.

As another reminder, review when and how to calculate cold-temperature altitude corrections.

Finally, check NOTAMs and other official documents for requirements. For example, Frankfurt Main (EDDF) restricts deactivating broadband/microwave functions of SATCOM systems. Take the time to be prepared for safe winter operations.

Frankfurt (EDDF) NOTAM requiring aircraft to be de-iced with SATCOM broadband and microwave functions deactivated

REFERENCED REGULATIONS

FAA AC 91-70B

NAT Doc 007 Ver 2026.1

ICAO Doc 4444 PANS-ATM

ICAO Annex 11

NAT OPS Bulletin 2025-3

AUTHOR

Scott IPC Instructor Team

The Scott IPC instructor team: retired corporate chief pilots, FAA procedures and safety personnel, and former military aviators who teach international procedures.

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