That article is full of technical innacuracies, it may be fake news.

Citizen researcher Larry Kawa is pressing the government to release the contents of a taping system that is required to have been installed on Lynch’s government airplane. Kawa points to the Tempest system, a NATO-certified system by which the NSA tracks and records sound that emanates within government structures.

TEMPEST isn't a a NATO certified surveillance system, it's a mil-spec like standard for protecting sensitive equipment AGAINST electronic surveillance by placing shielding on power cords and around monitors.

I kinda doubt that there is a requirement to record all audio from all parts of a government airplane 24/7. What corrupt politician would ever propose that law???

There are other propaganda articles on that site...