Tape Checks Tape Checks are performed by electronic technicians and air traffic controllers before the start of a high traffic time period, at the beginning of a new shift, or as soon as possible after the tapes have been changed for the new day. They ensure that all operator positions as well as all required communication networks vital to ATC operations and the RD-379 flight recorders are fully operational. The manual that outlines these requirements is the NAVAIR 00-80T-114, NATOPS ATC Facilities Manual. (Naval Air Training and Operating Procedures Standardization)