Preflight Information Checklist (91.103)

Familiarity with ALL available information concerning the flight — with named minimums: for flights beyond the airport vicinity, weather reports and forecasts, fuel requirements, alternatives if the flight can't be completed as planned, and known traffic delays; for any flight, runway lengths at airports of intended use plus takeoff and landing distance data for the aircraft as loaded. The phrase 'all available' is the enforcement hook — post-incident, information that existed and wasn't obtained is the violation. This checklist is that rule operationalised.

Single pilots need them more: there's no second crew member catching the omission, no dispatcher sharing the workload, and the same regulatory accountability. The professional pattern scales down cleanly — this list run alone IS the dispatch function for an owner-flown operation, and the ten minutes it costs is the cheapest copilot available. Adapt the items to your operation; keep the discipline.

Clearing site data deletes locally stored entries — that's the price of a genuinely private, server-free design. Protect yourself with the one-click CSV download before any cleanup, OS reinstall or device change: re-importing history later beats reconstructing it from memory.

Always — the CSV export is a complete, lossless dump of your planning record, generated locally in one click. Import it into commercial software, archive it with your files, or post-process it in a spreadsheet. No lock-in is deliberate: data you can't take with you isn't really yours.