Originally Posted by
Jumpjim
Once again, ACARS DOES NOT DO POSITION REPORTS WITHOUT BEING LOGGED ONTO ADS!!!! The ground systems cannot setup a contract without the aircraft logging on.
If the pilots haven't logged the ADS onto the FIR ADS address the ACARS will not send position reports. ATC cannot log on to the aircraft without the pilots requesting it first as far as I know.
There seems to be a common misconception throughout this thread that ACARS is sending back position reports constantly. It doesn't.
Do try not to get too excited.
The ACARS reported the Waypoint Change so it was contracted to do so, which shows that the ACARS was logged in on a contract with Sebang. There were also routine health monitoring reports every 30 minutes as the expected one after 1:37am local was not received.