Re: number of previous flights with UAS:
It would be excellent if people would provide documented sources, rather than fallible memory and conjecture. This took all of 5 seconds to find on Google news.
https://www.theguardian.com/world/20...t-four-flights
The head of Indonesia’s National Transportation Safety Committee (KNKT) , Soerjanto Tjahjono, told reporters the Boeing 737 Max plane had suffered similar problems on its last four routes, according to information downloaded from its flight data recorder.
“When we opened the black box, yes indeed the technical problem was the airspeed or the speed of the plane,” Tjahjono said.
“Data from the black box showed that the two flights before Denpasar-Jakarta also experienced the same problem,” he said.
“In the black box there were four flights that experienced problems with the airspeed indicator.”