AP Throttle Cutting Out

Your Callsign

American Airlines 13

Was your account linked with IFC in-app at the time of the issue?

Yes

Version Information

20.2 (465)

Device Information

iPad 6th Gen
iOS 14.0

Summary

Well into cruise I heard the throttle reduce slowly and ultimately bottom out at about 67% N1. The N1% then slowing increased until it got to 107%. However, the air speed kept going down until all the sudden it rapidly started accelerating. Seemed as if the airspeed was not reacting to the input of max power by the AP for about 3-4 seconds.

Steps to reproduce

  • Launch IF
  • Set FPL
  • Take off
  • Wait for it to happen during cruise

Expected results

Aircraft expected to throttle down again.

Actual results

Was not able to replicate.

More Information

This was a long haul from KMIA to LEMD. Appropriate fuel was filled and was cruising at an appropriate altitude of FL350 based off the weight of the aircraft. N1 was at 83% during cruise which is when this occurred. The AP corrected the aircraft on it’s own and there was no intervention from me to fix the problem - the whole issue lasted for about 10 seconds. No change in weather was noted during the issue.