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Does the Deadhead Count? What Lives Inside Your FDP

The FDP definition (§117.3) answers almost every "does X count" question — if you read it as a checklist.

Yes, inside the FDP

The deadhead subtlety: duty yes, segment no

The definition ends with: "For purposes of determining the maximum flight duty period in Table B, deadhead transportation is not considered a flight segment." So a report + deadhead + two revenue legs is a 2-segment day for Table B, while the deadhead hours still count against your limit. A deadhead-only day has no Table B FDP at all — but note §117.25(g): if a deadhead pushes you past your applicable FDP, you are owed extra rest before the next duty.

Not inside the FDP

Where the FDP ends matters as much as where it starts: parked aircraft, not crew room, not the last leg's on-blocks paperwork. If scheduling counts your post-flight debrief as FDP, they are being conservative — never the reverse.

Model your own deadhead-heavy day in the free Part 117 calculator.

Verified against eCFR 14 CFR 117.3 (definitions), 117.21, 117.25(g). Educational only.