Continuity mistake: Danno drives away from 5-0 headquarters in a 1972 Ford LTD, but arrives at the crime scene in a '73 with a distinctively different front grill. (00:04:05)
'V' For Vashon: The Father (2) - S5-E10
Continuity mistake: From his office on the second floor, McGarrett looks out at the office building across the plaza. But the POV shot that follows is taken from ground level.
Continuity mistake: When the police cruiser with Danno aboard leaves HPD HQ, it's a 1967 Ford Galaxy 500 with wind wings. But in the next shot of it on the Honolulu streets, the car is a '71 or '72 model with no wind wings. (00:43:30)
Continuity mistake: At the end, McGarrett hands Filer an orange monopoly "Go Directly to Jail" card. In Filer's hand, the card is white. He hands it back to McGarrett and it's orange again.
The Bomber and Mrs. Moroney - S3-E22
Continuity mistake: The bomber wants revenge on Danno for killing his brother, Joey Collins, whose death is recapped in flashbacks to a first season episode in which Danno first killed someone in the line of duty. But in that episode, Joey's name wasn't Joey or Collins - it was Thad Vaughn. (00:22:00)
Continuity mistake: Stoner strikes Danno across the right cheek. But in the next shot, he's bleeding from the left corner of his mouth. (00:29:15)
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)
Twenty-Four Karat Kill - S1-E8
Continuity mistake: When Andrea finishes wiping the test fluid from the gold bar, she holds it out with her left hand. After the cut scene, her right hand is holding the bar.
Continuity mistake: At 0:48:48 the grave marker is reversed (i.e. mirror image), and when they show the marker again at 0:48:50 it is correct. (00:48:45)
While You're at It, Bring in the Moon - S4-E19
Continuity mistake: McGarrett approaches the Governor's office building wearing a light blue suit, but enters the lobby wearing a dark navy blue one. (00:27:05)
Continuity mistake: McGarrett leaves the parking lot driving a two-door Ford Mercury, but arrives at the crime scene in a newer, four-door model. (00:07:25)
Odd Man In - S4-E14
Continuity mistake: At the end, Filer puts his jacket on, and the left side of his shirt collar is sticking out above the coat. Every time the camera angle changes, though, the shirt collar is neatly tucked in. (00:49:00)
Not That Much Different - S1-E23
Continuity mistake: When Steve is questioning Lannie Devereaux, his arms change position several times on the back of his chair, without him actually moving. (00:24:15)
A Bullet for El Diablo - S6-E10
Continuity mistake: When Rita shoots him, Ramos dies face up on the floor, and she flees without touching him again. When McGarrett finds the body, it's lying face down. (00:20:05)
Continuity mistake: When Ms. Karabinos is worried her father is dying, she is holding her face in her hands, but then her arms are suddenly down by her sides. (00:24:55)
The Capsule Kidnapping - S8-E22
Continuity mistake: During the airport chase, the airplane the bad guys board has propellers. As soon as it's airborne, though, it becomes a jet.
The Ninety-Second War (2) - S4-E17
Continuity mistake: When Vogler stands in the doorway talking to Danno, the position of his arms alternates with each change of shot, from down at his sides to propped at 90-degree angles on his hips. (00:42:05)
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.