A hundred aircraft a day arriving at my local airport (TTPP) are displayed properly on flightaware, and on a PC connected directly to a local Flightfeeder.
But then,… as shown on the above flight for Amerijet 820 this morning, an aircraft is shown more than 6000m off the centreline on finals.
The very next aircraft approaching TTPP displays properly. The latitude in the tracklog above (10.694N) reflects the displayed position on the mountain range, 6000m north of the runway. Runway 10 threshold is at latitude 10.5953N.
There is longitudinal error also.
This has been happening for around 2 years. Scared me to death the first time I saw an aircraft making a final approach into a mountain. Visual observation of the tail beacons on the correct approach path put my mind at ease… and thought it might be an error with the Flightfeeder Blue.
But I recently received a second feeder (Flightfeeder Orange, v7.1). Installed for test purposes about 100m from the first, prior to being shipped to its final destination at another airport. The PC connected directly to that receiver showed the same position error for AJT820.
Can anyone explain to me what the cause is? Is it in any way serious?