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See AutoBrief decide.

Three sample pre-flight checks running through the live rules engine. Every reason cites the 14 CFR section it's checking. This is the engine the dispatcher will call thousands of times a year.

Scenario

GO — clean check, current pilot, clean airplane

A current IFR pilot taking a clean for-hire 172 on a VFR cross-country. Everything checks out.

GO

Pilot

Sarah Chen

Aircraft

N7421Q · C172

Operation

VFR

Duration

1.8 hrs

No issues found. Every check passed.

Scenario

HOLD — medical expiring soon + MEL open + 100-hour close

A pilot with a medical expiring in 20 days, in a PA-28 with an open MEL item and only 5.4 hours to the next 100-hr inspection. Not blocking, but the dispatcher should know before signing off.

HOLD

Pilot

Marcus Holloway

Aircraft

N3309X · PA-28

Operation

VFR

Duration

1.2 hrs

  • Medical (Class 3) expires 2026-06-15 — 18 day(s) remaining.

    medical · warning · 14 CFR 61.23

  • 4.2 Hobbs hour(s) remaining after this flight before next 100-hour inspection.

    aircraft-inspection · warning · 14 CFR 91.409(b)

  • MEL item open: Landing light inoperative (MEL — VFR daytime only)

    squawk · warning

Scenario

NO-GO — multiple blockers

A pilot with an expired medical, an expired flight review, no IFR currency on file, missing required complex endorsement, in an aircraft with a grounding squawk and an expired annual. The hard wall.

NO-GO

Pilot

Jamie Park

Aircraft

N559TL · PA-28R

Operation

IFR

Duration

1.5 hrs

  • Medical (Class 1) expired 2026-04-30 — 28 day(s) ago.

    medical · blocking · 14 CFR 61.23

  • Flight review expired — last on 2024-02-15.

    currency · blocking · 14 CFR 61.56

  • No IFR currency events on file — pilot is not current for IFR flight.

    currency · blocking · 14 CFR 61.57(c)

  • Annual inspection expired — last annual 2024-09-01.

    aircraft-inspection · blocking · 14 CFR 91.409(a)

  • Grounding squawk open: Engine oil leak — origin unidentified

    squawk · blocking

  • complex endorsement required for PA-28R.

    endorsement · blocking · 14 CFR 61.31(e)

About the engine

AutoBrief's rules engine is deterministic — every check is a pure function over the pilot/aircraft state. The same inputs always produce the same output. Reg references point to 14 CFR sections so a CFI can verify the logic. The AI layer (Claude) sits on topof this — it turns the engine's output into plain-English explanations for the dispatcher.