Instructor flight time limitations for an ATO
An ATO must limit the flight time and duty of its instructors, under ORA.ATO.130(d) and its appendix, to protect against fatigue. Reconciling that after the month closes is too late. FlyerOS models the limits as rolling windows and checks them when a booking is made: a booking that would breach a daily, weekly, monthly or annual limit is refused with the reason, so the limitation shapes the roster rather than being discovered afterwards.
What ORA.ATO.130 asks of the school
- Instructor flight time is limited over rolling daily, weekly, monthly and annual windows.
- Duty and rest requirements are respected alongside flight time.
- The organisation can demonstrate the limits were applied, not merely recorded.
FlyerOS helps you operate your approved or declared procedures. It does not itself confer certification or approval, and it is not legal or regulatory advice. The authority named here is the current reference; always work from the regulation itself.
How FlyerOS supports it
Checked at booking, not month-end
A booking that would breach a limit is refused as it is made, so the roster is built inside the limits rather than corrected after the fact.
Rolling windows, projected forward
Limits are evaluated as rolling windows against scheduled flights, so next week’s booking already sees this week’s hours.
The reason on every refusal
A blocked booking names the limit it would breach, so the duty manager can act rather than guess.
Questions schools ask
- Which flight time limitations does FlyerOS apply?
- The daily, weekly, monthly and annual rolling limits your organisation sets under ORA.ATO.130(d), evaluated at the moment a booking is made against the instructor’s scheduled and flown hours.
- Are the limits advisory or blocking?
- That is your choice per organisation. They can advise the duty manager or hard-block the booking; either way the reason is shown.
- Does it account for future bookings, not just past hours?
- Yes. The windows are projected forward across scheduled flights, so a booking three weeks out is assessed against the hours it would add at that time.