Rumors that FAA just issue a new directive that effective immediately, all planes taking off at all airports in U.S. must have their compass calibrated before each flight, causing massive delays at all major airports. This is a result of a chance meeting between Frank Wang and Michael Puerto, when Mr. Puerto was given a Phantom 3 to try out. Being advertised as WTF, Michael immediately open the box, charged it and flew the P3, but since he did not do a compass calibration, the P3 flew away. After reading all the threads here on this forum and the carefully crafted and comprehensive manual supplied by DJI, he declared that all planes must go through the same vigorous check as that of the phantom 3, thus the above directive was issued. Stay tune for major delays at all airports and seeing plans hanging nose down suspended by huge cranes coming to you at all major airports in U.S.