Intermittant vibration at cruise

Guest Discussion
1

SR22 NA- About 3 months ago I started to feel a slight intermittent vibration when at cruise. I could time it and it would last 10 seconds and disappear. Over time this has grown to be 20-30 seconds at a time. Frequency has also been intermittent but the last two flights it has been consistent meaning vibrates for 20-30 seconds and then stops for 30 seconds. These are 2+ hour flights and it remained very consistent throughout even during descent.

We have checked cylinders, mags and spark plugs.

Any advise would be appreciated.

2

As you don’t metnion what the aircraft modle is…

so

Early pre beringer wheel aircraft have a problem with nose wheel bearing tension that is too loose…the tire has a tendency to rotate in flight and vibrate.

Rotation shall be 1 to 2 turns when “tossed”…

3

2016 G5

4

Have the nose wheel inspected. There have been instances of the internal balance weight of hte tire disbonding…and free floating in the tire/wheel assembly.