As I understand the pilot in the KAL 007 shoot down claimed that he visually identified the plane as a Boeing-type airliner years later, but also claimed he did not report that to control because it was not material since such aircraft could be readily converted to intelligence work which was what was the concern for which it was being intercepted. There is no additional support for this, and lots of things the pilot claimed about the incident are inconsistent with the evidence from radar tracks, flight data recorders of the shot down plane, and the records of the Soviet communications relating to the attack, so this particular unverifiable claim probably shouldn't be given much weight.

KAL 902, sure, we know that the pilot identified it as an airliner, tried to convince command not to have it shot down, but then followed the order to shoot it down.