CBs for fuses

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

Post Reply
User avatar
Lee
Posts: 169
Joined: Wed Mar 01, 2006 10:26 pm

CBs for fuses

Post by Lee »

Given the pros and cons ... question: does a change from fuses to CBs require either an STC and/or 337? (I have to fuse the installation of the alternator and figured that "as long as I am at it ..."! :wink: )
User avatar
GAHorn
Posts: 21295
Joined: Fri Apr 12, 2002 8:45 pm

Post by GAHorn »

Does not require an STC (although there may be some out there). It does require a Form 337, but does not require Block 3 approval (field approval.) IMO
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
User avatar
Lee
Posts: 169
Joined: Wed Mar 01, 2006 10:26 pm

Hmmm

Post by Lee »

Easier to ask forgiveness than permission?! :D TNX R/Lee
User avatar
cessna170bdriver
Posts: 4115
Joined: Mon Apr 22, 2002 5:13 pm

Post by cessna170bdriver »

I changed from fuses to breakers at the same time I installed the alternator STC. It's just another line on the 337.

Miles
Post Reply
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.