On Mar 3, 11:22 am, Ron Rosenfeld wrote:
KAUG AUGUSTA STATE

04/001 - WAAS LPV WAAS LNAV/VNAV OTS WIE UNTIL UFN

This Notam has been posted, well, since April.

No one seems to be sure of what it means.

Translating the abbreviations into English is easy enough. The Notam
basically states that the LPV and LNAV/VNAV approaches are out of service
until further notice.

BUT,

Published guidance, that I have been able to locate, with regard to GPS
WAAS Notams indicates that the terms "unreliable" or "unavailable" should
be used and says nothing about OTS. If the Notam does read UNREL or
UNAVAIL, guidance allows you to execute the approach if the signal is
adequate.

I believe you may still shoot the approach if the receiver indicates
it's available. The NOTAM
simply prevents you from flight planning on it.

And, two days ago, the signal on an LPV approach at that airport was
adequate for my CNX80 to give me an LPV annunciation.

This is not surprising as you up near the edges of the current Service
Volume, where the availability
tends to be more sensitive. Once the reference stations to the Great
White North of you become
operational, you should see much better availability. Maybe even an
LPV-200 approach published up
there sometimes after that.

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

Regards,
Jon