Engine TBO Tracker

Under Part 91, manufacturer intervals like this are largely advisory — you may operate on condition — but the advisory label hides real teeth: calendar TBO (often 12 years) bites low-utilisation engines long before the hour limit: a 200-hour engine can be past TBO on age alone. Insurance positions, 135 program requirements, resale value and plain risk management all push toward tracked compliance, and the tracking itself is nearly free. The expensive version is re-deriving component history at pre-buy time.

Anchor each component to its last documented event — overhaul release tag, 8130-3, installation logbook entry — and accrue forward from the aircraft times since that date. Where no anchor exists, the conservative convention is to assume the worst (time-expired or unknown-since-new) and price decisions accordingly. Enter your best-evidenced figure here with the anchor noted in the notes field; a documented assumption beats an optimistic blank.

By design: operational records are sensitive, and the simplest privacy guarantee is never transmitting them. Local-only storage means zero servers, zero breach surface and zero subscription. If you work from several devices, keep one as the master record and move snapshots with the CSV export.

Always — the CSV export is a complete, lossless dump of your component life 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.