so you can see that ATC types can not work past the age of 56. Most ATC types are leaving service ASAP (age 50).
The TSP portion has a 10% penalty on withdrawls prior to 59 1/2 this really bites when you must retire at age 56
At 55 you can take it out without penalty. Any time before 55 you must use 72t. When the pension reform act was passed it allowed early withdrawals for local law enforcement officers from eligible retirement plans without a penalty. I think federal law enforcement and ATC should lobby for the same benefits. This is the first batch of retirees under the new system and obviously some changes need to be made to TSP for LEOs and ATCs.