Progressive Inspection Scheduler
Never miss the deadline: track progressive inspection dates per aircraft with calendar-correct warnings.
91.409(d): a progressive inspection breaks the annual into routine and detailed phases on an approved schedule, keeping the aircraft available.
No entries yet — add your first one above. Data stays in your browser.
⚠️ Not for operational decisions. This is a record-keeping and planning aid only — not certified avionics, not a source of regulatory truth. Always verify against official sources (FAA) and your operator's approved documents before flying.
Free progressive inspection scheduler for high-utilisation operators: per-aircraft due dates with the calendar-month math done right and badges before anything lapses. miss a phase deadline and the aircraft may revert to needing a full annual.
About Progressive Inspection Scheduler
For high-utilisation operators, this clock gates everything: 91.409(d): a progressive inspection breaks the annual into routine and detailed phases on an approved schedule, keeping the aircraft available. Note the detail most people learn the hard way: miss a phase deadline and the aircraft may revert to needing a full annual — the schedule is the airworthiness. This tracker's job is unglamorous and essential — keep each aircraft's dates, show the soonest deadline, go amber early — so scheduling happens around maintenance instead of maintenance happening around a grounded schedule.
How to use Progressive Inspection Scheduler
- 1Add each aircraft's inspection items with last-done and next-due dates.
- 2Update the dates at every sign-off — thirty seconds, max.
- 3Schedule shop time when badges go amber; export the board for your records.
Why use Progressive Inspection Scheduler?
- ✓Implements the actual rule: 91.409(d)
- ✓Per-aircraft entries — fleets welcome
- ✓Amber warnings sized to real shop scheduling lead times
- ✓Next-due headline answers 'what bites first?' instantly
- ✓Private browser storage with CSV export
Frequently asked questions
What exactly does the rule behind this tracker require?+
91.409(d): a progressive inspection breaks the annual into routine and detailed phases on an approved schedule, keeping the aircraft available. The detail that catches high-utilisation operators: miss a phase deadline and the aircraft may revert to needing a full annual — the schedule IS the airworthiness. Encode the real next-due date here at every sign-off — including the end-of-month or interval-deduction quirks — and the badge carries the arithmetic from then on.
What happens if this inspection lapses?+
The aircraft (or the affected operation) is grounded as a matter of law until the inspection is completed — and operating anyway risks certificate action and voided insurance. There's no grace period in the rule; the grace period is whatever warning buffer you build, which is exactly what the amber badge is.
Where is this data stored?+
Everything you enter is saved in your browser's local storage on your own device — nothing is uploaded to any server. Your records stay completely private, work offline, and load instantly. Use the CSV export regularly to keep an off-device backup copy.
What format does the export use and what reads it?+
A plain CSV with one row per entry and labelled column headers — the most portable format there is. Spreadsheets open it directly, most specialised software can map it on import, and a printed copy is perfectly legible to a human reviewer. Nothing proprietary means your inspection schedule is never trapped here.
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