A pilot completing initial flight training and planning an early transition away from ForeFlight's logbook raises a question that is increasingly common as the aviation community's reliance on digital recordkeeping matures: what happens to electronic endorsements and instructor signatures when logbook data is migrated between platforms? The concern is well-founded. ForeFlight's digital signature system stores instructor endorsements within its proprietary ecosystem, and CSV export files — the standard interoperability format across most electronic logbook platforms — carry flight time data, aircraft types, and remarks fields, but do not port cryptographic or embedded signature records to a receiving platform. The result is that any import into a competing product such as Logbook Pro, MyFlightbook, or Garmin Pilot will reproduce the underlying flight entries without the associated instructor attestations.
The practical and regulatory implications depend heavily on what those signatures represent. Under FAR 61.51, pilots are required to maintain accurate records of aeronautical experience, and instructors are required to sign off training endorsements under FAR 61.189. Crucially, the FAA draws a distinction between logbook entries that simply document completed flight time — which require no co-signature — and formal endorsements that authorize specific privileges, such as solo flight, a practical test, or a flight review. The latter carry regulatory weight independent of the logbook platform. If a pilot's solo endorsements, stage check authorizations, or practical test sign-offs exist only within ForeFlight's signature infrastructure and that account is allowed to lapse, those records become inaccessible in a provable, auditable form. The underlying regulatory requirement for those endorsements does not expire simply because a logbook platform changes.
For a pilot targeting an airline career, the stakes at logbook audit time are meaningful. Regional and major carriers conducting ATP hiring typically request a complete logbook or electronic equivalent, and their records specialists look for internal consistency, time verification, and evidence of proper training progression. A logbook that has been migrated via CSV and shows thousands of hours of flight time but carries no instructor signatures for the training period — where the original platform account has been closed — creates an evidentiary gap that an airline records auditor may flag. While it is unlikely to disqualify a candidate outright, it can trigger additional verification steps, requests for paper backup documentation, or conversations with former instructors. The cleaner approach, which many experienced pilots and hiring consultants recommend, is to retain the ForeFlight account in a read-only or lowest-tier state specifically to preserve the signed training records as a reference archive, while migrating active flight tracking to a lower-cost platform.
The broader issue this post surfaces is the fragmentation and portability problem inherent in the current digital logbook landscape. No universal open standard for transferring signed, verified logbook records between platforms exists, and the major providers — ForeFlight, Garmin Pilot, Logbook Pro, and others — have little commercial incentive to build one. CSV interoperability covers raw data but discards provenance. This creates a soft vendor lock-in for pilots who accumulate years of signed training records on a given platform, a dynamic that disadvantages early-career pilots in particular, who completed extensive structured training under digital oversight and may not have contemporaneous paper backups. As the FAA continues to accept electronic logbooks under Advisory Circular 61-98 and the industry moves further toward paperless recordkeeping, the absence of a portable, platform-agnostic endorsement standard represents an unresolved gap that affects tens of thousands of pilots navigating career transitions each year.