Continuity mistake: When Squad 51 and then Engine 51 are dispatched to the hotel fire, before going in Johnny's SCBA cylinder has a large arrow sticker and Roy's has a large red sticker, but once inside Roy's air cylinder goes back and forth from having an arrow sticker to the red sticker. Then in a few moments, when Marco and Chet go in with the stokes, both of their air cylinders are tall, flat-top and devoid of stickers, but inside their SCBA cylinders are short, round-top and keep switching from having either an arrow or large red stickers.
Other mistake: When Brackett's on the line with Johnny, who's with the quarterback on the field, Brackett has the third button (out of five) pressed to record the conversation on the tape machine. However, in episode 2x5, "Peace Pipe", Brackett presses two buttons - the third and fifth, when Squad 51 is at the scene of the drunk driver's accident, and in 2x10, "Dinner Date", Dixie presses the second button to record, when Squad 51 is with the little girl whose arm is stuck in the pool drain.
Other mistake: After Roy tells Captain Stanley, over the HT, that he and Johnny may have found something in the flooding storm drain, Captain Stanley uses his HT to contact Marco and Chet (who are driving Squad 51 while John and Roy are down below), and says "Squad 51, Engine 51..," but the subtitles read, "Car 51, Engine 51..." Subtitles from Universal Studios 2010 DVD.
Continuity mistake: When Johnny and Roy are with the elderly man in the burning house, the window is pushed up fully when Mike climbs the ladder in the exterior shot, but when Mike breaks the window with the axe, the window is halfway down in the interior shot.
Other mistake: When the tones drop and Station 51 is dispatched to the "structure fire", there's a closeup of all the guys running from the kitchen and the back heading to the squad and engine, and none of them are actually 51's guys.
Other mistake: When Squad 51 is dispatched to the 'child in a coma', the address is given as "3705 Orchard", but when they park on the building's corner the street sign reads Colfax. As an aside, this is the same location/footage that is used in 2x5, "Peace Pipe", with the address given as "1017 Crocker" in that episode.
Peace Pipe - S2-E5
Continuity mistake: When Johnny and Roy are at the nurses' station telling Dixie about the girdle run, Squad 51 responds to the structure fire right up the street, and we see Roy and Johnny en route without the turnouts, but when they pull up to the house they're both wearing turnouts.
Peace Pipe - S2-E5
Continuity mistake: Treatment 4 is beside the nurses' station, as seen when Roy and John are with Debbie's parents, while the drunk driver is being wheeled through the double doors. Later, when Brackett suspects that Debbie's father is with the drunk, as he rushes to the drunk's room he goes through the double doors to get to the room, but while Brackett's in the room speaking to Debbie's father we can see treatment 4's door right behind Brackett, even though they're supposed to be in a completely different area.
Continuity mistake: At the movie studio, during the rescue of the stunt guy whose leg is trapped in the wagon, while both Roy and Johnny are standing in the water, they're wearing water-type boots with whitish, flat rubber soles.
Other mistake: When Station 51 is dispatched to the structure fire in the middle of the night, once they arrive at the burning house, one of the first shots shows a crowd of bystanders, many in their robes. That footage is from season 1, the pilot episode "The Wedsworth-Townsend Act", during the factory fire at the start of that episode.
Other mistake: When all the guys are asleep in the dorm, at 12:47 AM the dispatcher drops tones for Squad 51 and we hear him say, "Squad 51, person sick," yet the footage that is shown is of all the guys getting up, not just Roy and Johnny, putting on their turnouts.
Continuity mistake: When Johnny runs inside the burning house to get to Toby and his grandfather, he's wearing a distinctive SCBA tank on his back, but when Johnny's inside the house he's wearing a different tank. Additionally, when Roy takes the mother's pulse he's also wearing a tank, but when Johnny and Toby have come out his tank is different.
Visible crew/equipment: When Johnny and Roy are speaking with the Battalion Chief in the apparatus bay, about who could have stolen the money, when they walk forward there are two tape marks visible on the floor behind them, where they were just standing.
Continuity mistake: After Boot shows up for the first time at Station 51, when Chet scares him away, there is a turnout coat and helmet hanging on the hook near the radio receiver base station, but when the dispatcher transmits the tones, the turnout coat and helmet have vanished as Chet turns away.
Peace Pipe - S2-E5
Continuity mistake: After Roy and Johnny find the source of the fuel oil getting into the water supply, when they pull up behind the van, there are three barricades with flashers. The flasher on the sidewalk barricade flips from one side to the opposite side between shots.
Peace Pipe - S2-E5
Continuity mistake: When Johnny and Roy arrive at the apartment with the woman who can't breathe because of her new girdle, she hangs up the phone receiver with the cord across the base. In following shots the receiver is placed properly, and then the other way again.
Continuity mistake: When Dixie goes to Brackett's office to discuss Boot's temperature, Dr. Morton's crossed legs go from left over right, to right over left, repeatedly, depending on the shot.
School Days - S2-E14
Continuity mistake: On their way back from the rescue at the auto wrecking yard, in the close-up we see that Roy, Billy, and Gage are in the squad talking, but when it cuts to the exterior shot there are only two people in Squad 51.
School Days - S2-E14
Continuity mistake: When Roy walks into the kitchen at Station 51, Billy is on the couch studying, and in the overhead shot the pages of the open book that Billy is holding has illustrations, but in the close-up the pages have only text on them. Plus when Roy is in the doorway, you can see the truck (s) behind him, but when he turns to go back to bed, the garage is empty.
Dinner Date - S2-E10
Continuity mistake: When DeSoto and Gage are in the pool with the little girl whose arm is stuck in the drain, their shoes and pants are soaked. However, just after Gage gets off the Biophone, his shoes and pants are completely dry, and then when the pool has been mostly drained both DeSoto and Gage are dry.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
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