Bill's Secret

Bill's Secret, sometimes referred to as just Secret, was a temporary puzzle that initially made it into the airport on December 3, 2019, after an idea from Thundermaker300. The secret was shut down on February 9, 2020 at approximately 12:00 AM EST, due to a lack of maintenance and updates, however remnants of the secret can still be found, such as the gold strip in Bill's candy shop and the abnormal amount of bottles placed in this row compared to the rest of the rows.

Alpha testers were offered six months of Premium if they could figure the puzzle out in the first three hours of its release, or three months if they could figure it out in the first week. No alpha tester was able to figure out the puzzle in this time frame; thus, no one was granted the promised six months of Premium.

Step One - Bill's Candy Shop

 * 1) Go to Bill's Candy Shop and find the row that has a golden strip on it. This is the second row from the top on the left side of the shop.
 * 2) Count the amount of red, yellow, blue, and green bottles. Each color had a value (Red = 1, Yellow = 2, Blue = 3, Green = 4).
 * 3) Look under the Bill's sign and read left to right to get the order of the colors.
 * 4) Place the colors in order.
 * 5) Insert this code into the far right metal detector and press log in.

Example: If there is 1 red, 3 yellow, 0 blue, and 1 green, and the order is yellow, green, red, blue, the code is 6410.

Step Two - Morse Code

 * 1) A secret room will open up inside of Runway Grill.
 * 2) After entering the room, morse code will begin playing, revealing six numbers.
 * 3) Decode these numbers and insert them in the correct order into the keypad.

Conclusion
Once the number is entered correctly, the player is automatically added to a chat called "Communications", which shows dialogue between captains and ATC, where the player is unable to talk in. The chat can now be joined through the hidden /comm chat command. Although more was planned, including a secret flight to a private location, the secret was never developed any further than its initial release.