{
  "Block Airdrops spawned by the server": true,
  "Block Cargo Ships spawned by the server": true,
  "Block Chinooks spawned by the server": true,
  "Block Patrol Helicopters spawned by the server": true,
  "Event Timers in seconds": {
    "Airdrop": {
      "Max": 0,
      "Min": 0
    },
    "Cargo": {
      "Max": 0,
      "Min": 0
    },
    "Chinook": {
      "Max": 0,
      "Min": 0
    },
    "Helicopter": {
      "Max": 0,
      "Min": 0
    }
  }
}

I run an event server and have all heli, chinook etc turned off. For some reason Chinook is still spawning. I'm not sure why :(

mvrb

I will try to fix that.

In the meantime, you should be able to run the console command server.events false to disable airdrops and helis on your server.

Did you ever fix that?  Seems it's still happening.