There is no indication in any official documents that I have seen as to when gen. Błasik might have entered the cockpit. He probably knew the crew personally, and even though he was a combat pilot he was also qualified on Jak-40 (there was information inmedia that he used official trips in Jak-40 to make his required number of hours for flight crew bonus pay - which seems like sensible thing to do considering limited staff in the unit and saving tax payers money as opposed to training flights on combat plane) and flew with crews of the same unit before as a crew member, so he was probably welcome in the cockpit not only because of rank and command held.