EASA SIB 2021-15: Origination and Issuance of SNOWTAM for Promulgating Information on Runway Surface Conditions — Global Reporting Format

What to do

Aerodrome operators and AIS providers should review and update their procedures for SNOWTAM origination and issuance to ensure alignment with GRF requirements and mutual consistency. They must ensure personnel are trained and informed about these procedures. National Competent Authorities should incorporate these recommendations into their safety oversight activities. No specific compliance deadlines are stated, but the guidance supports readiness for winter operations following the GRF implementation date.

Summary

EASA Safety Information Bulletin 2021-15 is a regulatory guidance document addressing the origination and issuance of SNOWTAMs for reporting runway surface conditions under the Global Reporting Format (GRF). It targets National Competent Authorities, Air Navigation Service Providers, and aerodrome operators involved in runway condition reporting. The bulletin clarifies the correct use of SNOWTAMs to notify hazardous runway conditions caused by contaminants such as snow, ice, slush, frost, or standing water, ensuring accurate and standardized communication to flight crews.

What changed

This bulletin introduces clarifications on when SNOWTAMs should be originated and issued, emphasizing that SNOWTAMs must only be used to report the presence or cessation of hazardous runway surface contaminants. It reinforces that SNOWTAMs should not be used merely to indicate dry or wet runway conditions unless these follow the elimination of previously hazardous contaminants. The document also highlights the implementation timeline of the GRF within the European Union starting 12 August 2021.

Why it matters

Proper use of SNOWTAMs under the GRF is critical for aviation safety as it enables flight crews to perform accurate performance calculations and mitigates risks of runway excursions during take-off and landing on contaminated surfaces. Misuse of SNOWTAMs can lead to NOTAM system clutter, potentially confusing flight crews and impacting operational decision-making. Compliance with these guidelines supports consistent and clear communication between aerodrome operators, AIS units, and flight crews.