NOTAM Decoder

NOTAMs use a compressed, coded format designed for machine processing and telex transmission — not for human reading. A typical preflight briefing for a cross-country can contain dozens of NOTAMs, many irrelevant to your flight.

The Q-line encodes the FIR, subject code, condition code, traffic type, purpose, scope, and altitude range in a single slash-delimited string. The E-line (body text) uses abbreviations defined in FAA Order JO 7930.2 and ICAO Doc 8126.

This decoder does basic pattern matching to extract the key fields. For full NOTAM intelligence — filtering by route, relevance scoring, and plain-English summaries — the AeroCopilot AI copilot processes every NOTAM along your planned route automatically.