On Tue, 6 Jan 2004 21:04:45 -0600, "Haggerty" wrote:

Ron, You are correct. They (GPS) used to get an automatic "Alternate NA"
until the last update to FAA 8260.19 change 3. See para 853 b NOTE for
alternate minimums (page 102 of 201 at
http://av-info.faa.gov/terps/Directi...19C%20CHG3.pdf )
This paragraph also explains how and why alternate minimums are decided.

Thank you for that reference.

It seems to me that the AIM needs to be updated to reflect the WAAS boxes

Here's another question. Give a TSO-146 box, an overlay approach
(overlayed on an NDB in this case) but the NDB is NOTAM'd OTS (in this case
because somebody didn't do the maintenance check in a timely fashion). Can
one still fly the overlay approach using the GPS?


Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)