I have a student who is working on his commercial certificate. He studied hard for the knowledge test and before I made the endorsment I had him take two practice test. One from the FAA site and the other from Shepard Air. He made mid to upper 90's on the practice test's so endorsement was issued. He came back with a score of 83. He was disappointed and wants to retake the test so he can get a better score. I know he needs to wait 30 days and just return to the testing center with his knowledge test report and he can take the test again. The last test taken will be the score used. The problem is he wants to make his way to the Airlines someday and I'm wondering how this will look on his PRIA. Does the FAA list the tests that were taken with the score and with there being two tests taken for the same certificate or rating would it look as if he might have failed the first one. I would welcome anyone's experience or advice with this. Thanks.