SECTION 12 Services related to meteorology — Aircraft observations and reports by voice communications
ANNEX: Rules of the Air · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · SERA.12001 – SERA.12020
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SERA.12001 Types of aircraft observations
The following aircraft observations shall be made during any phase of the flight:
SERA.12005 Special aircraft observations
Special observations shall be made and reported by all aircraft whenever the following conditions are encountered or observed:
SERA.12010 Other non-routine aircraft observations
When other meteorological conditions not listed under SERA.12005(a), e.g.
SERA.12015 Reporting of aircraft observations by voice communication
Aircraft observations shall be reported during flight at the time the observation is made or as soon thereafter as is practicable.
SERA.12020 Exchange of air-reports
Air traffic services units shall transmit, as soon as practicable, special and non-routine air-reports to:
AMC1 SERA.12020 Exchange of air-reports
Consolidated from the EASA Easy Access Rules (revision 26 Aug 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.
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