# AIRTRUTH > The Airline Delay & Statutory Payout Engine: proves the true cause of airline delays from live ADS-B flight radar, METAR weather, runway departure logs, and tail-number rotations, and issues signed EU261 / US DOT / DGCA claim packets. - [Case studies · Airline delay excuse audits — AIRTRUTH](https://airtruth.vercel.app/case-studies.md) - [IndiGo audit: 64.8% weather excuses rebutted — AIRTRUTH](https://airtruth.vercel.app/case-studies/indigo.md) - [Delta audit: 58.2% weather excuses rebutted — AIRTRUTH](https://airtruth.vercel.app/case-studies/delta.md) - [British Airways audit: 68.5% weather excuses rebutted — AIRTRUTH](https://airtruth.vercel.app/case-studies/ba.md) - [Method · Aviation telemetry fusion & statutory charter verification — AIRTRUTH](https://airtruth.vercel.app/method.md) - [Passenger Rights & Public Audit API — AIRTRUTH](https://airtruth.vercel.app/docs.md) - [Passenger Rights & Public Audit API — AIRTRUTH](https://airtruth.vercel.app/docs/api-reference.md) - [Policy & Statutory Charters — AIRTRUTH](https://airtruth.vercel.app/docs/config-reference.md) - [Webhooks & Radar Alerts — AIRTRUTH](https://airtruth.vercel.app/docs/webhooks.md) - [Privacy & telemetry verification — AIRTRUTH](https://airtruth.vercel.app/privacy.md) - [Architecture & scope — AIRTRUTH](https://airtruth.vercel.app/built-by.md)