Airspeed indicator

[creekrat]

We have a Piper Cherokee 180c that has an intermittent ASI issue. Our ASI is a United 8100 series TAS indicator. The issue is that more often than not it reads fast by anywhere from 15-30 mph or so. We checked the pitot/static system and everything is right and tight. We also just installed a G5 and the airspeed on it is spot on and doesn’t vary at all(man I wish the G5 was primary for airspeed). Now it is my understanding that when an ASI reads fast that it is typically the indicator that has an issue and seeing as our G5 is reading correctly that seems to reinforce that thinking. I know they are not difficult instruments but our glass is also a little hazy and the face is faded so we were looking to send it for overhaul. I’m local to The Tulsa area and got a quote from Porter Strait for $400. Anyone know of any other places to get an overhaul or maybe even an exchange unit?

 

[Mark Ballentine]

 

[TEG916]

 

[Tweety]

 

[Sanger 69]

 

[user 20226]

 

[reb]

 

[user 20226]

 

[Tweety]

 

[user 20416]