Depends on the priority given to the procedure and whether the airport
has existing procedures. Average time from request to completion is
about 1 year, but can be much shorter or longer depending on the
priority given to the procedure.
This link explains the process and what's involved in getting a procedure;
http://avn.faa.gov/index.asp?xml=ifp/iap_flow

You can also look at the following website to see if your airport has
procedures in the final coordination stage (finished and waiting for
publication);
http://avn.faa.gov/acifp.asp

The following airports in NY have pending procedures that can be
reviewed at the above website; 06N, OG7, 9G6, 44N, BUF, DSV, FOK, GVQ,
JFK, MGJ, SYR. Some are Original RNAV's, others are GPS replacements,
and others are VOR's or ILS's.

If you provide the airport ID, I can check to see if anything has been
started.

JPH

Beech45Whiskey wrote:
Yesterday, I stopped by a small VFR airport in western NY state and struck
up a conversation with a few locals. During the interesting aviation chat
I learned that the FAA had been to their airport a year or so ago
performing a survey that would hopefully result in a GPS approach.

On average, how long does it take the FAA to publish an approach in this
case?