From: utzoo!decvax!harpo!ihnp4!ihuxa!cfiaime
Newsgroups: net.aviation
Title: Re: Losing vacuum pump in IFR
Article-I.D.: ihuxa.170
Posted: Mon Jan  3 11:25:13 1983
Received: Tue Jan  4 02:13:04 1983
References: watcgl.85

The next question is:  what happens if the vacuum pump is ok, but
the associated plumbing is broken (I have seen it happen)?
 
You still need to stay current on partial panel IFR.

Also, instead of an electric vacuum pump, why not install a two-inch 
backup electric horizon?  It should be about the same cost and the
redundency of an entirely different power source would be nice.

Jeff Williams
BTL - Indian Hill