Engine shop lead technician reported noticing several discrepancies with part numbers for engine fan blade annulus fillers while generating shop orders.

Narrative

On Day 0; there were 10 annulus fillers replaced on Aircraft X; Engine Serial Number (ESN) XXXXX per jobcard. Replacement fillers were not available in inventory. Aircraft Y was undergoing and engine change; and fillers were robbed from the engine being removed; ESN XXXXY. When the ESN XXXXY was brought into the shop; the removed fillers from Aircraft X were inside the fan case. I started going through the fillers to get Manufacturer Part Number (MPNs) and serial numbers (S/Ns) so I could generate shop orders for each filler. While reviewing the robbed parts tags attached to each filler and the jobcard; I noticed numerous discrepancies.• Position #1 shows the same S/N as position #24• Position #3 shows the same S/N as position #23• Position #6 had the incorrect S/N; missing a digit required for tracking• Position #7 had an illegible S/N and required researching to find the correct S/N• Position #12 had the incorrect S/N; requiring research to find the correct S/N• Positions #13 and #16 had illegible S/Ns which required research to find the correct S/Ns• Position #26 shows S/N XXXXXXXXXX was removed from the engine; but it was shipped with ESN XXXXYPer email from Engineering; position #26 was specifically mentioned as needing removal; which it apparently was; however the tracking software (Assembly Status Inquiry) shows this part is still installed. This causes concern that; because two fillers show the same S/N on the jobcard as well as a filler that I have on my desk to scrap; we are not tracking time-controlled parts that should be. I was able to generate nine shop orders for the fillers; however the one in my possession can not be scrapped as directed by engineering because it shows in the tracking software that it is still installed on an aircraft.