Hi gang.
Today, I was out flying with my -7 which has a AFS 3500 EFIS (non-S CPU).
A minute or two after t/o, I noticed that the attitude-info, wind-info and the heading info was WAY off: the compass where slowly rotating CW at what seemed to be a constant rate of approx 1 minute per 360*.
The wind-info was indicating somewhere beetween 80 and 250 kts, changing all the time.
In addition, the attitude (both in pitch and bank) where slowly drifting up and down; +/- approx 60*
The IAS and altitude where correct.
The FPM also seemed correct in relation to the horizon-line.
The info displayed on the EFIS from the Garmin 296 where correct (track etc)
After landing, I checked the compass-align page: it said "compass align is correct" but this was NOT true since the compass continued to rotate CW slowly after parking.
On Monday, I'll contact AFS ofcourse, but that's several days away yet. In the meanwhile, I'm wondering if any of you AFS users have seen similar symtomes before?
Can this be a AHRS failure maybe? Or maybe a compass-sensor failure?
Below is a few VERY crappy pics. It was a very gusty day and I only had my cell for pics, so sorry for the quality... but you'll get an idea.
ALL the following pics where taken during straight and level flight!
Sooo people; anyone have an idea to what's going on with my trusty AFS EFIS??
Today, I was out flying with my -7 which has a AFS 3500 EFIS (non-S CPU).
A minute or two after t/o, I noticed that the attitude-info, wind-info and the heading info was WAY off: the compass where slowly rotating CW at what seemed to be a constant rate of approx 1 minute per 360*.
The wind-info was indicating somewhere beetween 80 and 250 kts, changing all the time.
In addition, the attitude (both in pitch and bank) where slowly drifting up and down; +/- approx 60*
The IAS and altitude where correct.
The FPM also seemed correct in relation to the horizon-line.
The info displayed on the EFIS from the Garmin 296 where correct (track etc)
After landing, I checked the compass-align page: it said "compass align is correct" but this was NOT true since the compass continued to rotate CW slowly after parking.
On Monday, I'll contact AFS ofcourse, but that's several days away yet. In the meanwhile, I'm wondering if any of you AFS users have seen similar symtomes before?
Can this be a AHRS failure maybe? Or maybe a compass-sensor failure?
Below is a few VERY crappy pics. It was a very gusty day and I only had my cell for pics, so sorry for the quality... but you'll get an idea.
ALL the following pics where taken during straight and level flight!
Sooo people; anyone have an idea to what's going on with my trusty AFS EFIS??
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