Duty, rest & fatigue

Duty/rest checked at assignment time — violations are blocked before a pairing posts.

When a pairing is about to be assigned, duty and rest legality is checked first, and an assignment that would bust the limits is blocked before it posts — not flagged after the line is built. The check is deterministic, so the same assignment always resolves the same way. You see whether an assignment is legal; the underlying limit tables stay in the engine. It replaces FAR 117 legality checked by hand after the fact.

Parallel duty/rest enforcement for flight attendants.

Flight attendants get the same assignment-time duty/rest enforcement on the 121.467 regime that pilots get on 117, so cabin-crew legality is held to the same standard rather than tracked separately. It replaces the parallel FA duty spreadsheet.

Live duty used per crew member, derived from shifts and the flight log.

A live board shows each crew member's duty used, derived from their shifts and flight log, so the desk sees who's running out of legal duty before assigning the next trip. It replaces reconstructing duty totals from paper.

Deterministic and explainable — blends documented duty load with self-reported sleep signals. Not an AI prediction model.

The fatigue risk board surfaces a per-crew risk view that blends documented duty load with each crew member's self-reported sleep and rest, and every score traces back to the inputs behind it. It is deterministic and explainable — there is no black-box prediction model. It replaces judging crew fatigue by gut feel on long rotations.