Just boring while the waiting of the delay at Ngurah Rai Intl Airport for 10 hours. This airport is so busy, 1 landing/takeoff per minute. So my aircraft just wait at the ramp area after all cargo loaded. In usually after all cargo loaded I can start the APU and close the cargo door. after it closed, locked, and save I start the engine, both engine in the same time, and start the taxiing sequence until the runway then takeoff. But not this time. I must re-turn off the APU after the cargo door closed, locked, and save for saving the fuel and wait for clearance from the tower. And it need 10 hours because it so busy.