Can the demotion process for fitness failure be started after an Airman has passed a pt test (failed 3 passed the 4th)?

The answer is yes. The command is not barred from taking administrative action just because a passing score is on top. Trust me I know....I work at an Area Defense Counsel's office. However, I do think that having a passing score on top is mitigating and strengthens the case that demotion is an not appropriate. You should go seek the assistance of your local ADC to make sure you (or whoever this applies to) is putting together the best response possible. That could be the diffeeence between losing and keeping your stripe. Any other questions? Feel free to message me.

Damn... you guys get multiple attempts?!?! Marine Corps starts processing you out if you fail the 2nd time.

Thank you to everyone for their help. 3 hours after reading my rebuttal, the commander decided not to proceed with the demotion action.