I flew HKG-DPS on Feb 11 in J. It was scheduled as 747. When arrived at airport got seats 1K but told that flight delayed by 55 min (late arrival of ac). Go to the gate 30 min before departure. Plane was there but no boarding and a lot of discussion among CX people at the gate. Gate staff told me that the crew was not willing to fly because of late departure. I will skip various unpleasant episodes but we finally boarded a regional 777 3++ hours late and the captain explained on audio that the previous crew did not want to fly because the one hour delay meant returning from DPS after "normal" hour. Hence CX had to use a crew/plane destined to Singapore. Captain (and purser) clearly unhappy that other crew decide to work to rule. Would that be an episode of the FAs action against management?