On May 29, 8:06 am, Larry Dighera wrote:
On Thu, 29 May 2008 09:52:44 -0400, Dudley Henriques
wrote in
:

If crossing high enough that you are well out of the transition area
where someone coming out of or descending into an uncontrolled airport
would be, no need to say anything.

If however, you were crossing en route above the pattern altitude but
inside the area right above that....say to within a thousand feet above,
where aircraft entering or leaving the area might be present, it's a
good idea to let the airport know who you are where you are and where
you're headed.

The Advisory Circular mentions notifying UNICOM stations of over
flight of uncontrolled fields, but I find no mention of
self-announcing over flight intention on CTAF:

AC No: 9042F

http://www.airweb.faa.gov/Regulatory...ry/rgAdvisoryC...
10 . UNICOM COMMUNICATION PROCEDURES.
a. In communicating with a UNICOM station, the flowing practices
will help reduce frequency
congestion, facilitate a better understanding of pilot intentions,
help identify the location of aircraft in. the traffic pattern,
and enhance safety of flight:
(1) Select the correct CTAF frequency.
(2) State the identification of the UNICOM station you are calling
in each transmission.
(3) Speak slowly and distinctly.
(4) Notify the UNICOM station approximately 10 miles from the
airport, reporting altitude, aircraft type, aircraft
identification, location relative to the airport, and whether
-- landing or overflight.
Request wind information and runway in use.
(5) Report on downwind, base, and final approach.
(6) Report leaving the runway.

The AIM also mentions notifying UNICOM stations of over flight intent,
and while stating intentions on CTAF is mentioned in 4-1-9(g)(1), I
find no mention of broadcasting over flight intent on CTAF:

http://www.faa.gov/airports_airtraff...ications/atpub...
4-1-9. Traffic Advisory Practices at Airports Without Operating
Control Towers

g. Self-Announce Position and/or Intentions

1. General. Self-announce is a procedure whereby pilots broadcast
their position or intended flight activity or ground operation on
the designated CTAF. This procedure is used primarily at airports
which do not have an FSS on the airport. The self-announce
procedure should also be used if a pilot is unable to communicate
with the FSS on the designated CTAF. Pilots stating, "Traffic in
the area, please advise" is not a recognized Self-Announce
Position and/or Intention phrase and should not be used under any
condition.

So, announcing intent to over fly an airport on CTAF is a bit
ambiguous. As you have indicated, if it seems prudent, do it.

Where we flew we used ettiquette.
Example: We're approaching an airport and at 5 miles,
we'd radio tower "Yankee Yankee Golf approaching
from the XXX, intends to enter the circuit.
I'd hear, "Roger, your clear".

Next I'd key radio just before doing my 30 degree
bank to get into the down-wind, so the controller
can get an easy visual of me, "YYG turning onto
downwind". Same for every other turn, to final.

Radio work is 1st for the controller, and secondly
for other a/c, he's the boss.
Ken