Mobile App

Your CASA logbook, wherever the job takes you.

Built for aircraft maintenance engineers working on the hangar floor, line maintenance, or remote sites. Capture tasks, request supervisor sign-offs, and track your progress—even without an internet connection.

The eLog66 mobile app is designed to replace paper logbooks with a fast, offline-first experience. Everything syncs automatically once you're back online.

Offline-first with automatic sync
Log Part 1, Part 2 and Part 3 anywhere
Upload photos and evidence
Request supervisor countersignatures
Push notifications for approvals
Face ID / Biometric authenticationComing soon
Download on theApp StoreGET IT ONGoogle Play

Now available on iOS and Android. Download the app today and start managing your aviation maintenance experience anytime, anywhere.

eLog66 mobile application preview

eLog66 by Tailwind Systems

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CASA Part 66 Digital Logbook • © 2026 Tailwind Systems