LOL...my ONLY logbook was destroyed in Katrina.
FSDO said to just sign and date a statement in my logbook to that effect and to put single line entries in my logbook for each major type of acft flown and to shave 5-10% off the hours to be safe.
FWIW...thats exactly what I did and the RAH interview capt didnt even question my times.... result...late NOV class date.
course.... there is 1800 hours of military time there and another 950 in 121 time....