A detaileddescriptionandexplanationofthetechnicalkey points of the ESLfillingtechnologyapplied to the hotfilling of PET-bottled beverages is given in the paper.
The explanation - that Raissi made a mistake in filling his log book, that he had flown in the Piper not on March 8th, but March 9th, a date which tallies with flying hours that were also logged.