---
title: "Disruptive schedule — EASA Definition · Avioverse"
description: "ORO.FTL.105, Regulation (EU) No 965/2012: ‘disruptive schedule’ means a crew member’s roster which disrupts the sleep opportunity during the optimal…"
url: "https://avioverse.aero/glossary/easa/disruptive-schedule"
---

# disruptive schedule

EASA defines “disruptive schedule” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘disruptive schedule’ means a crew member’s roster which disrupts the sleep opportunity during the optimal sleep time window by comprising an FDP or a combination of FDPs which encroach, start or finish during any portion of the day or of the night where a crew member is acclimatised. A schedule may be disruptive due to early starts, late finishes or night duties.
>
> (a) ‘early type’ of disruptive schedule means:
>
> (i) for ‘early start’ a duty period starting in the period between 05:00 and 05:59 in the time zone to which a crew member is acclimatised, and
>
> (ii) for ‘late finish’ a duty period finishing in the period between 23:00 and 01:59 in the time zone to which a crew member is acclimatised;
>
> (b) ‘late type’ of disruptive schedule means:
>
> (i) for ‘early start’ a duty period starting in the period between 05:00 and 06:59 in the time zone to which a crew member is acclimatised; and
>
> (ii) for ‘late finish’ a duty period finishing in the period between 00:00 and 01:59 in the time zone to which a crew member is acclimatised;

ORO.FTL.105 · Air Operations · Regulation (EU) No 965/2012 · Easy Access Rules, 27 Mar 2026 revision · [Read ORO.FTL.105](https://avioverse.aero/regulations/easa/air-ops/part-oro/subpart-ftl#oro-ftl-105)

## Defined in the same article

- [acclimatised](https://avioverse.aero/glossary/easa/acclimatised)
- [accommodation](https://avioverse.aero/glossary/easa/accommodation)
- [airport standby](https://avioverse.aero/glossary/easa/airport-standby)
- [augmented flight crew](https://avioverse.aero/glossary/easa/augmented-flight-crew)
- [break](https://avioverse.aero/glossary/easa/break)
- [delayed reporting](https://avioverse.aero/glossary/easa/delayed-reporting)
- [duty](https://avioverse.aero/glossary/easa/duty)
- [duty period](https://avioverse.aero/glossary/easa/duty-period)