An electronic tech log that works offline and can't be quietly changed

The problem

Paper tech logs are slow to fill in, hard to read, and arrive at the office days later. Many electronic alternatives need a connection at exactly the moment the aircraft doesn't have one, and few can prove that a signed page has not been edited afterwards.

How BXI solves it

BXI eATL runs on an iPad bound to each aircraft. Pages are pre-filled from the BXI schedule, compiled phase by phase, and signed by the crew with a personal passphrase. Signing works offline; pages sync automatically when the iPad is back online.

Each sealed page is hashed, chained to the previous one and electronically signed, so any later change is detectable. The record is designed around EASA Part-M and Part-CAMO technical log requirements.

Key capabilities

• Sector record — OUT/OFF/ON/IN times, cycles, fuel with density and unit conversion and automatic uplift and burn checks, approach type, de-icing, oil and inspections.
• Offline-first — compile, sign and seal without a connection; automatic sync with retry when back online.
• Signed, tamper-evident record — each page hashed, chained and electronically signed, with built-in verification.
• Defects — PIREP and MAREP with ATA chapter and operational impact (no restriction, MEL, AOG), part changes on/off.
• Deferrals — MEL category A–D, CDL and NEF, with limits in days, flight hours or cycles and automatic expiry.
• Release to service — staff number, maintenance organisation licence, handwritten and electronic signature; blocked until every defect is closed or deferred.
• Daily and weekly inspections with countdown and offline recording.
• Technician dashboard — only aircraft with open items, with the full ATL read-out.
• PDF export of every tech log page with company branding, signatures and integrity hashes.
• ATL book page numbering enforced; voided pages keep their number.

What it changes in your day

The tech log is legible, complete and in the office as soon as the iPad connects. Maintenance sees open items before the aircraft lands, and ops sees the release to service without waiting for a photo of the page.

Where BXI eATL sits in BXI

BXI eATL uses BXI Platform for login, flights, crew, MEL and ATL books, and its sealed pages appear in the Technical module. BXI eATL is currently available to operators through an early-access programme — contact us to take part.