Sorry, no. NICS automatically purges data every 24 hours, the only data immune from the daily purge is those checks that ran longer. Once a NICS check is complete, up OR down, it’s purged in the next 24-hour cycle.
How do I know this ?? I worked at the FBI Data Center where NICS is. They have monthly “purge audits”. . .
....the only data immune from the daily purge is those checks that ran longer.......”
When did the (up to & including 3 day) delay ones get deleted?
On the day after?
Many thanks for your cogent observation and setting things straight!