The ETA is the day that the inspector is planning to do the inspection. If the seller isn't available on the day that the inspector is planning to do the inspection, the ETA will be reset and you will be notified. There may be an instance where an inspector sets an ETA and is able to do it sooner. In that instance, the ETA may not be updated, he will upload the report instead. We always do our best to get inspections done as soon as we can!