to include complete data derived from all tests necessary to
assure compliance with established specifications
and standards [2 1 CFR 211. 194]. Specifically, your firm failed to properly maintain electronic files containing data secured in the course of tests from 20 HPLCS and 3 GLCS. Additionally, no investigation was conducted by your company to determine the cause of missing data and no corrective measures were implemented to prevent the recurrence of this event."