jeharlan

Well after talking to the FAA and a DER and Brian Kendrick I have come around to the fact that unless I install an Aspen or Garmin unit with the STC then I would have to go the full distance and get a field approval which would require engineering. Also after talking with Brian it appears that someone let one of the filaments out of the AirWolf. So we have ordered the filament and hope that this will resolve the issue with oil mist coming out the vent of the AirWolf. This was my first post on here and I wanted to thank everyone for all their help and ideas. Jeff

I check mine before every flight and right after I turn on the master.

I do GUMPS and I pump the breaks to make sure I have pressure on each pedal at 4 miles out and then for arrival into a non controlled airport on each leg of the pattern.

Yes the secondary system is the battery backup unit ESP-1 for the RCA2600.

The primary issue is that we have an AirWolf system with the wet pump and after repeated calls and changes to the system it ALWAYS pushes oil out the vent line. I am tired of a belly full of oil and want to remove the system and go with the RCA2600 with battery backup. Does anyone have any thoughts on why I would not want to do this?

I found this but it points to an STC'd replacement and no AI maker has done that work. Aircraft models that originally were certified with vacuum powered attitude systems that have those systems replaced with a non-vacuum powered attitude system: If the Primary Attitude system has been replaced with an FAA Approved STC’d installation that meets the requirements of 14 CFR 23.1303(f)(i)(ii)(iii)(iv)(v)(vi), 23.1311(a)(1)(2)(5)(6)(©, 23.1321(a)(©(d)(1), 23.1331(a)((1)(2)©, thereby leaving no operational systems dependent on a Primary or Standby (if equipped) Vacuum system, then the Primary and Standby (if equipped) Vacuum pumps and associated lines, manifolds, etc may be removed from the aircraft. Refer to engine manufacturer’s instructions of removal and capping off of engine driven vacuum pumps.

Where do I find the documentation for "Mooney type certificate allows removal the vacuum system" at? Thanks!

I have been trying to figure out what has to be done to remove my orignal AI and replace with electric. I can find where if the unit has an STC (which no manufacture has done) you can remove the vacuum. I would like to replace with a LifeSaver from Mid-Continent. Has anyone else made this change. I am in a M20S Eagle. Thanks Jeff