Three Dead Cows at Makapuu (1) - S2-E23
Audio problem: The landing jumbo jet's tires start making skidding noises before they've actually touched the ground. (00:13:45)
A Thousand Pardons -- You're Dead! - S2-E1
Continuity mistake: Pool balls redistributed on pool table between the time after the Sargeant breaks and McGarrett casually takes a shot. Especially, noticeable since Tommy, the other player, does not move off the table's edge after the break when two balls comes towards his position and his bottom or pants may interfere with their travel. In the next shot involving the table, those balls are not there and the rest of them seem more evenly distributed across the table. (00:35:40 - 00:36:10)
To Hell with Babe Ruth - S2-E2
Continuity mistake: When Nagata breaks into the boarded-up house, he walks through a doorway full of cobwebs, covering his black suit with white dust and webs. But when the shot changes, his suit is suddenly perfectly clean again. (00:10:00)
Three Dead Cows at Makapuu (2) - S2-E24
Continuity mistake: When the surfer examines the test tube in his beach shack, the level of white powder inside the tube keeps changing between shots. It's nearly full, then has only an inch inside, then is full again, etc. (01:22:00)
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.