Per Faa Tso-C157B; Notam 30-Day Limitation - Garmin GPS 175 Pilot's Manual

Hazard Awareness
5.1.2

Per FAA TSO-C157b

FIS-B information may be used for pilot planning decisions focused on updating the
pilot's awareness of the dynamic flight environment; including avoiding areas of
inclement weather that are beyond visual range and pilot near-term decisions where
poor visibility precludes visual acquisition of inclement weather. FIS-B weather and
NAS status information may be used as follows:
a. To promote pilot awareness of ownship location with respect to reported
weather, including hazardous meteorological conditions; NAS status indicators
to enhance pilot planning decisions; and pilot near-term decision-making.
b. To cue the pilot to communicate with Air Traffic Control, Flight Service Station
specialist, operator dispatch, or airline operations control center for general and
mission critical meteorological information, NAS status conditions, or both.
FIS-B information, including weather information, NOTAMs, and TFR areas, are
intended for the sole purpose of assisting in long-/near-term planning and
decision making. The system lacks sufficient resolution and updating capability
necessary for aerial maneuvering associated with immediate decisions. In
extreme scenarios, the oldest weather radar data on the display can be up to
15 to 20 minutes older than the display's age indication for that weather radar
data. Therefore, do not attempt to use FIS-B weather information to maneuver
the aircraft at minimum safe distances from hazardous weather.
FIS-B information must not be used in lieu of a standard preflight briefing.
c. FIS-B uplink is a subscription-free FIS broadcast managed by FAA SBS. It provides
an FAA approved source for METAR, TAF, WINDS, PIREPs, NEXRAD, AIRMET,
SIGMET, and TFR information, and is subject to the broadcast range limits for
these products.
FIS-B uplink is not an FAA approved source for NOTAMs.
5.1.3

NOTAM 30-Day Limitation

NOTAMs received via FIS-B may not be a complete listing. Active NOTAMs are
removed from the FIS-B data stream 30 days after issuance. Before flight, review all
necessary aeronautical and meteorological information from official sources.
For more information, consult AC 00-63A or latest revision.
5-4 GPS 175/GNX 375 Pilot's Guide 190-02207-02 Rev. B