For such a situation, the most likely position of the aircraft at that time is exactly the same position indicated on the pilot display. Assuming the desired track has been flown correctly, the FTE would be within the required limits and therefore the likelihood of the TSE exceeding twice the accuracy value just prior to the alert is approximately 10−5.
In such a scenario, the most probable location of the aircraft at that time is precisely the same position shown on the pilot's display. Assuming the desired course has been followed accurately, the FTE would be within the predetermined limits, making it unlikely that the TSE would exceed twice the accuracy value just prior to the alert by more than 10−5.