My unit has had several people complete their ATP checkride in an Army aircraft. It was in the Lakota. We have yet to find a check airman that is 60 qualed to be able to accomplish this now that we have gotten rid of the Lakotas. It requires a memorandum from your O6 commander authorizing the check airman to fly in the aircraft. Our BDE SP gave a checkride to one of our PCs and the DPE rode in the back and signed both off when they were done, I believe.