Originally Posted by Verdell

To put the iron to fire, I submit:

SRH pg 162. Reroute example #6.

REG pilot is rerouted into a 5th day of a 4 day trip. They get L8 pay for All of day 4 and all of day 5. It did not matter whether the duty period on day 4 ended within 4 hours of original release or not. The fact that day 5 extended release >4 hours beyond original release triggered L8 pay.

Now imagine a RES pilot in a similar scenario, except that the duty period release on day 4 passed midnight and infringed on an X-day. Day 5 is clearly L9 pay, but why wouldn't day 4 (duty period infringed on an X-day) pay L9 also?

What is the trigger for L9 pay?