NTSB: Air traffic controller was juggling extra roles during LaGuardia crash : NPR
https://www.npr.org/2026/03/24/nx-s1-5759710/laguardia-airport-plane-crash

消防車にMODE-Sトランスポンダついて無かった！？＞＜；
"...However, there was no transponder, or radio receiver and transmitter, in the truck, Homendy said."