If it is duty time your worried about
hawkercpt said:
In a 135 operation, are the repositioning legs indeed under 135 as well? If you are positioning to do a revenue leg then would it not be considered under 135?
Empty legs can be dispatched under part 135, that gives an obvious answer.
However, when there are no dispatch rules against it, repositioning flights may be dispatched under 91. the tricky part about non-sched 135 is that since there is no definition of duty day we have to look at
flight time and
rest time on a sliding 24 hour scale (the 24hr look back).
Front end ferries as well as tail end ferries are not duty time but they are not rest time either. The flight time on a front end or tail end ferry is not 135 but it counts towards your total commercial flying time for the 24hr period. Front end ferries always affect revenue legs and tail end ferries only under certain circumstances affect revenue legs.
Example 2 man crew - after a couple days off, crew show time is 0000z wheels up @ 0100z repo empty 5hrs away for a revenue flight back @ 0700z, a mechanical delays your off time to 0900z and another 5hrs puts you on @1400z. In this case, looking back 24 hrs from the completion of the revenue leg the crew has flown the maximum 10hrs and had the required minimum 10hrs of rest. No more revenue legs for this crew until they receive 10hrs of rest.
However, after the revenue leg that same night, dispatch asks the crew to reposition empty 5 hrs away...that puts them on the ground lets say 2000z. This is perfectly legal because it is not a revenue leg, albeit probably not the best use of judgement. 15hrs flying is tough.
Here is the tricky part. Dispatch says your show time is 0700z, 11 hours from your block-in to allow for post-flight and travel to the hotel and 10hrs of rest. This is all perfectly legal so far. You get your leg schedule and it says you will be for wheels up @0800z doing a 7hr revenue leg that puts you on at 1500z. Its only 7hrs of flying and you've had your 10hrs of rest, right. Wrong!!
This is how the tail end ferry will screw you. If you look back 24hrs from the end of your revenue leg of 1500z, you will find another 5hrs of commercial flying the day before. That makes your total, if you accept the 7hr trip, 12hrs of flying in a 24hr period.
The lesson here is that the 10hr rest period does reset the duty day sliding period but it
does not reset your flight time period.
The best method - look at the
planned completion time of the scheduled revenue legs. Then from that time on the clock look back 24hrs. If you can find 10 consecutive hrs of rest and not more than 10hrs of commercial flying, including the planned revenue legs, then you can accept the trip.
I hope this helps.
Fly