CASA duty period support?

[ericberman]

https://www.legislation.gov.au/Details/F2020C00553/Html/Text#_Toc43717867

[ericberman]

I don't think there's actually a logbook issue here.

[pleaseinsertyourname]

Hi, thanks for looking into this again. Legislation is https://www.legislation.gov.au/Details/F2021C01239/Html/Text#_Toc90281435 Key point is on Limitation of Duty Time (very similar to FAR117) with he main addition is CASA (Australia) has a 2 week duty limit also of 100 hours. This is what I would really appreciate you adding.

There is a Plain English Guide from CASA at https://www.casa.gov.au/sites/default/files/2021-08/plain-english-guide-for-fatigue-management-rules-print-version.pdf. There are other rules about what time of the day you start and how long the duty is, but this isn't something that this service should look after, that is for rostering.

Here is the relevant section.

9 Limit on cumulative flight time

   9.1     The cumulative flight time accrued by an FCM during any consecutive 28-day period must not exceed 100 hours.

   9.2     The cumulative flight time accrued by an FCM during any consecutive 365-day period must not exceed 1 000 hours.

10 Limit on cumulative duty time

 10.1     The cumulative duty accrued by an FCM during any consecutive 168-hour period must not exceed 60 hours.

 10.2     **_The cumulative duty accrued by an FCM during any consecutive 336-hour period must not exceed 100 hours._**

Note 168 hours is the number of hours in a 7-day period, and 336 hours is the number of hours in a 14-day period.

11 Limits on infringing the WOCL and early starts

 11.1     Subject to subclause 11.3, an FCM must not be assigned more than 3 consecutive early starts.

 11.2     Subject to subclause 11.3, an FCM, whose duties have already infringed 3 consecutive WOCLs, must not be assigned an FDP that would again infringe the WOCL without at least an intervening off-duty period that includes a local night.

Note See paragraph 6.2 of this CAO for duties that infringe a WOCL.

 11.3     Despite subclauses 11.1 and 11.2, the FCM may have a 4th, or a 4th and a 5th, consecutive early start (whether or not the start infringes the WOCL) if:

(a) the maximum FDP permissible on the day of the 4th early start is reduced by 2 hours; and

(b) the maximum FDP permissible on the day of the 5th early start is reduced by 4 hours.

[pleaseinsertyourname]

Actually, there is also maximum on days worked.

[ericberman]

I still need to read above in detail, but key first question here is how a "day worked" is defined. Does it require flight? (I.e., is it sufficient to have duty time even if flight is cancelled)? Is it defined on a rolling 24-hour basis or a calendar basis? And if a calendar basis, in which timezone? All duty periods in MyFlightbook are - and MUST BE - Zulu time (otherwise math is impossible).

E.g., if it's a rolling-24 hour definition and if duty time defines "work", then the above limits can be restated as requiring at least one 24-hour rest period in 7 days, at lest 3 24-hour rest periods in 14 days, etc., and that's actually pretty striaghtforward to implement. But if either a day is a calendar day (worse, if it's local time), or if "work" is not identically the same as "on duty", then I'm probably going to punt on this because it becomes a nightmare of new data and fragile computations.