In this case the aircraft has completed one cycle of service in the first 454 hours of service. Then making the difference between the hours of service and the hours of the first cycle we have:
Hours of the second cycle= Total time in service- time Airworthiness Directive
=468-454=14
Then we have 14 hours of service and need to accumulate the rest to complete 454. It is
454-14=440
Then we need to accumulate 440 hours additional to complete the Airworthiness Directive .
A for the first because there are 4 aces and 1 nine of hearts. that makes it 5 cards of the 52 in a deck d for the second because there are two cards: the queen of heart and and ace of diamond out of the 52
