AIM CHG 2



using TSO-C145/-C146 WAAS equipment. For
further WAAS guidance, see paragraph 1-1-18.
1. For flight planning purposes, TSO-C129()
and TSO-C196() equipped users (GPS users) whose
navigation systems have fault detection and
exclusion (FDE) capability, who perform a preflight
RAIM prediction at the airport where the RNAV
(GPS) approach will be flown, and have proper
knowledge and any required training and/or approval
to conduct a GPS-based IAP, may file based on a
GPS-based IAP at either the destination or the
alternate airport, but not at both locations. At the
alternate airport, pilots may plan for applicable
alternate airport weather minimums using:
(a) Lateral navigation (LNAV) or circling

minimum descent altitude (MDA);

(b) LNAV/vertical navigation (LNAV/
VNAV) DA, if equipped with and using approved

3/15/07
5/26/16
12/10/15

barometric vertical navigation (baro-VNAV) equip-
ment;
(c) RNP 0.3 DA on an RNAV (RNP) IAP, if
they are specifically authorized users using approved
baro-VNAV equipment and the pilot has verified
required navigation performance (RNP) availability
through an approved prediction program.

2. If the above conditions cannot be met, any
required alternate airport must have an approved
instrument approach procedure other than GPS that is
anticipated to be operational and available at the
estimated time of arrival, and which the aircraft is
equipped to fly.

3. This restriction does not apply to

TSO-C145() and TSO-C146() equipped users
(WAAS users). For further WAAS guidance, see
paragraph 1-1-18.