Fuel selector question

On many Cessna 172s you are REQUIRED to run on either left or right (not
both) above 5000'

Karl
http://www.caa.is/datadir/bsdata/img...s/72-07-02.pdf


"es330td" wrote in message
ups.com...
Sorry if this is dumb (I am only at 8.3 hours toward my PPL)...

In the email I got from AOPA ePilot training tips today there is a
discussion of fuel starvation that makes regular mention of the fuel
selector switch. All my flying is done in a CE172 and the first and
last time I worry about the switch is during pre-flight when I confirm
that it is on both. I fly on both and never fly any other way and to
be honest, outside of gravity flow issues when parked on an incline I
cannot think of why one would want to select one tank at a time vs
both.

On Oct 6, 4:25 am, "karl gruber" wrote:
On many Cessna 172s you are REQUIRED to run on either left or right (not
both) above 5000'

Karlhttp://www.caa.is/datadir/bsdata/img/adnotes/72-07-02.pdf


Many cessna 172's? How many were not modified -I've not seen the
required placard...

Cheers

On Fri, 05 Oct 2007 18:38:09 -0000, wrote:

On Oct 6, 4:25 am, "karl gruber" wrote:
On many Cessna 172s you are REQUIRED to run on either left or right (not
both) above 5000'

Karlhttp://www.caa.is/datadir/bsdata/img/adnotes/72-07-02.pdf


Many cessna 172's? How many were not modified -I've not seen the
required placard...

The modification was to add a new vent line. I don't know any on the
flight lines I have access to that weren't done. They also all
complied with AD79-10-14R1 (new vented fuel caps) at the same time.