As the squad leaves the station at about 20:02, the engine 51 visible in the garage is the open-cab truck from earlier years, not the enclosed cab truck seen elsewhere in this episode.
When the horse-rider is taken away in an ambulance, it's a '73 Ford truck-based ambulance that arrives on the scene..but when they pull into the hospital, it is now a '72 Chevy truck-based ambulance.
When the OD patients are being brought into the ER treatment room, Dr. Brackett explains that the ingested daffodils contain atropine, a belladonna alkaloid. In fact - daffodils contain lycorine, a toxic crystalline alkaloid plus oxalates, which are microscopic and needle-like. When swallowed, oxalates cause severe burning and irritation of the lips, tongue, and throat.
At The Beginning Of The Episode Station 51 Is Call Out Do To An Aircraft Having Trouble. As The Engine And Squad Is leaving The Station, Captain Stanley Is Heard Acknowledging With Squad 51 KMG365, Not Station 51 KMG365.