337 forms for 60 amp alternators and VR circuit

[Cloud9sa]

337 forms for 60 amp alternators and Voltage Regulators paralleling circuit

I've requested a copy of the 337 forms from CPA a couple of days ago, but have not received a response. Questions:

1) Can anyone else send me a copy of the forms?
2) Does anyone have experience with either of these changes (or have second-hand knowledge).
3) Does anyone know of any operational drawbacks to making these changes?

Thanks, Tracy

[Mark Hislop]

I already sent this to Tracy, but I thought I would post here in case anybody else wants the info. Attached is the form 337 for my aircraft for the installation of paralleled voltage regualtors. It's a very simple operation. The original VR's were replaced with the same regulators used in 400 series Cessnas.

The original Form 337 I got from CPA also showed the replacement of the orginal alternators with 60 Amp alternators. I didn't do that, so my From 337 doesn't show that information. Unfortunately, I can't find the orginal form. But as I remember, all that was necessary was to swap out the alternators and run a larger gage wire from the alternator to the buss.

Over the years, this installation has been trouble free for me. Both alternators are always "on line", and my volt/ammeter shows they share the load fairly well.

Mark

[wybenga]

I have a 337 for N1049D as well as a supporting letter from TCM if you still need this information

Jack