Another means of identification: the (correct) serial is generally visible on the ejection seat. That is something that will definitely not be reused. Best means still is the c/n plate of course, but that's another story.
Looking at the photos of the crash site, I can't image it was possible to use the tiptanks of the crashed NF-5 on another one.
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Looking at the Scramble database only five NF-5A-2000 have a l/n prior the crash date 7/4/21.
However....
3004 l/n 5/19 (found one photo on internet after the crash date, but no serial was visual on that photo, so not sure)
3036 l/n 6/11 (never seen in the new livery of Turkish Stars)
3046 l/n 5/19 (noted by myself at Kecskemét Airshow Aug. 2021)
3049 l/n 5/19 (noted by myself at Kecskemét Airshow Aug. 2021)
3058 l/n ...... (noted at Kleine Brogel Sep. 2022)
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So actually, it could only be 3004 which crashed on 7/4/21, or it is just the painted digits on the tip tanks they are messing with.
If that is the case, none the sightings of the Turkish Stars is sure anymore.
Edit: both 3004 and 3058 were last note with number #3 on the fuselage. So there might be the mix up??
If anyone has any other thoughts on this, let me know.