Apples and oranges.
Are you US based? Because if you are, your 30 hour turn makes no sense to me. (It doesn't make sense even if you weren't US based). In the US, 19 hours is an allowable maximum for very specific FRMS flights that have to be approved ahead of time by the FAA and are double augmented. And in that situation, you have rest periods during the flight. When you're working a 4 leg domestic day, there is no crew rest, no opportunity to NOT be awake and alert.
Firstly you have a go at me for not being a pilot or flight attendant, then I have told you I am an airline pilot you not saying I am comparing apples an oranges. I am not employed by a US carrier, but I regularly fly sectors in excess of 15 hours. The example I cited where I had a 30+ hour “day” is also perfectly legal under FAA rules.
“If a flightcrew member engaged in deadhead transportation exceeds the applicable flight duty period in Table B of this part, the flightcrew member must be given a rest period equal to the length of the deadhead transportation but not less than the required rest in paragraph (e) of this section before beginning a flight duty period.“
Now going back,to,what I said before that you objected to “Normally crew have a maximum number of hours that they can be pre-planned to work, however on the day due to something like this technical delay they can consent to extending that by a couple of hours.”
This is true under FAA rules, “For augmented and unaugmented operations, if unforeseen operational circumstances arise prior to takeoff: The pilot in command and the certificate holder may extend the maximum flight duty period permitted in Tables B or C of this part up to 2 hours.”, and once airborne the maximum plus the extension can be exceeded, “The pilot in command and the certificate holder may extend maximum flight duty periods specified in Tables B or C of this part to the extent necessary to safely land the aircraft at the next destination airport or alternate airport, as appropriate.”
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