Pilot deleted cache on his game station!
In addition to flight school the 9/11 hijackers practiced using Microsoft Flight Simulator, a game.
Student pilots regularly use this game to prepare for their pilots license. Time on the game can be used to satisfy some of the training hours required to obtain the license.
“A personal computer-based aviation training device (PCATD), as defined by AC 61-126, is an FAA-approved, computer-based program that can satisfy a portion of the flight training required for an instrument rating under 14 CFR 61.65(e). With advances in PCATD technology, there are now basic (B-ATD) and advanced (A-ATD) aviation training devices that satisfy additional training and currency requirements required by 14 CFR Part 61.”