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The Part 117 FDP Tables, Explained Like Your Schedule Printout Sees Them

Your maximum Flight Duty Period comes from one lookup: report-time band × segment count (Table B), or report-time band × rest facility × pilots (Table C). Here is the whole thing, and the two adjustments people miss.

Table B — unaugmented (minimum) crews

Find the row for your acclimated report time, then the column for the number of flight segments. Deadheads are not segments. Seven or more segments share the last column.

Report (acclimated)	1	2	3	4	5	6	7+
0000-0359	9	9	9	9	9	9	9
0400-0459	10	10	10	10	9	9	9
0500-0559	12	12	12	12	11.5	11	10.5
0600-0659	13	13	12	12	11.5	11	10.5
0700-1159	14	14	13	13	12.5	12	11.5
1200-1259	13	13	13	13	12.5	12	11.5
1300-1659	12	12	12	12	11.5	11	10.5
1700-2159	12	12	11	11	10	9	9
2200-2259	11	11	10	10	9	9	9
2300-2359	10	10	10	9	9	9	9

The 0000–0359 row is flat 9 hours no matter what — this is why early-report trips feel short even as a single leg. The best band is 0700–1159: 14 hours with up to four segments.

Adjustment 1 — not acclimated? Lose 30 minutes

Acclimated means 72 hours in the theater, or at least 36 consecutive hours free of duty. If you are not acclimated, two things happen under §117.13(b): your Table B maximum drops by 30 minutes, and the band is read using the local time at your last-acclimated theater — not your current local time. The same two rules apply to Table C in §117.17(b).

Adjustment 2 — flight time is a separate ceiling

Table A caps actual flight time by report time: 8 h for 0000–0459 and 2000–2359 reports, 9 h for 0500–1959. A 14-hour FDP does not mean 14 hours of flying. With an augmented crew the ceiling is instead 13 hours (3 pilots) or 17 hours (4 pilots), any report time.

What sits inside the FDP

Everything from report until the aircraft is parked with no intention of further movement.
Deadhead transportation before or between flights — it is duty, just not a segment.
Aircraft or simulator training, airport/standby reserve, and pre-flight duties.
Transportation to/from a hotel is not FDP — that is why a release to a suitable accommodation ends the duty period.

Compute your own day in seconds with the free Part 117 calculator.

Verified against eCFR 14 CFR Part 117 (117.11, 117.13, 117.17). Educational only — your CBA may be stricter.