The Board of Regents is auditing flights taken by Leath, following a damaging hard landing during vacation.
One question was whether Leath would turn over his log, which pilots are required to keep. He told students earlier that he didn't believe it was a public record.
Emails obtained by The Associated Press show that auditor Todd Stewart requested the "complete and unredacted" log from Leath.
Leath asked Stewart if non-university flights had to be divulged, and Stewart responded they did. Board spokesman Josh Lehman says Leath later provided the log unredacted, and Stewart reviewed but didn't take possession of it.
It's unclear when the review will finish.
IOWA STATE UNIVERSITY: http://registry.faa.gov/N176CF
This undated photo provided by the Bloomington Normal Airport Authority shows a damaged wing of a Cirrus SR22 plane at the Central Illinois Regional Airport in Bloomington, Ill. Iowa State University President Steven Leath caused "substantial damage" to the university airplane he was piloting when it made a hard landing at the Illinois airport last year — a costly incident kept quiet for 14 months.