Section 4. Global Positioning System (GPS)
5-4-1. ACTIONS REQUIRED
When providing GPS orientation services to an
aircraft in emergency status:
a. Determine if the aircraft is in VFR or IFR
weather conditions, fuel remaining, altitude, and
b. If the aircraft is operating in IFR weather
conditions, coordinate with the appropriate control
c. Determine if the aircraft is on a flight plan. If the
aircraft is not on an IFR flight plan and is in VFR
weather conditions, advise the pilot to remain VFR.
5-4-2. GPS ORIENTATION
When using GPS orientation, determine the aircraft's
position as follows:
a. Position fixing.
1. Advise the pilot to remain VFR and provide
the local altimeter setting.
MAINTAIN VFR AT ALL TIMES. ADVISE IF
HEADING OR ALTITUDE CHANGE IS NECESSARY TO
REMAIN VFR. (Location) ALTIMETER (setting).
2. Obtain heading and altitude. Advise the pilot
to maintain straight and level flight and to align the
heading indicator with the magnetic compass.
MAINTAIN STRAIGHT AND LEVEL FLIGHT. RESET
YOUR HEADING INDICATOR TO AGREE WITH YOUR
MAGNETIC COMPASS. AFTER YOU HAVE DONE
THIS, SAY YOUR HEADING AND ALTITUDE.
3. Determine the weather conditions and fuel
WHAT IS THE WEATHER AT YOUR ALTITUDE AND
FUEL REMAINING IN TIME.
4. Advise the pilot to maintain the same
heading, verify the aircraft has GPS equipment, and
determine the airspeed.
CONTINUE HEADING (degrees). WHAT TYPE OF
NAVIGATIONAL EQUIPMENT DO YOU HAVE ON
BOARD, AND WHAT IS YOUR AIRSPEED?
1. Advise pilot to turn on GPS or if GPS is
turned on advise pilot to turn it off and back on.
2. Advise pilot to report when GPS is
This procedure ensures the GPS unit is not in simulator
mode and does not have data displayed that may be
3. Ask pilot for position information.
(a) Latitude and longitude
(b) Fix radial distance from NAVAID,
airport, or fix
4. Plot the position of aircraft.
The position is the aircraft's position at the time of the GPS
5. Advise the pilot of the aircraft's position and
the safe altitude for orientation in that area.
YOU ARE (miles) (direction) OF THE (name)
NAVAID/AIRPORT. THE SAFE ALTITUDE FOR
ORIENTATIONS IN THAT AREA IS (feet).
6. Notify the appropriate control facility.
Provide all required information including the
aircraft's position and heading.
7. Request pilot's intentions and provide
assistance, as requested.
WHAT ARE YOUR INTENTIONS?
5-4-3. GUIDANCE TO AIRPORT
After establishing the aircraft's position and if the
pilot requests guidance to the airport:
a. Plot the course to the airport.
b. Provide the course guidance information to the
1. Advise the pilot of the direction of the turn
and the heading to the airport.
FOR A HEADING TO THE (name) AIRPORT, TURN
LEFT/RIGHT HEADING (degrees). REPORT
ESTABLISHED HEADING (degrees).
2. After the pilot reports established on the
heading to the airport, advise the pilot of the position
in relation to the airport.
YOU ARE (miles) (direction) OF THE (name) AIRPORT.
CONTINUE HEADING (degrees).
3. Continue to provide assistance in the form of
pilotage and airport information as necessary.
DO YOU SEE ANY PROMINENT LANDMARKS?
ARE YOU FAMILIAR WITH THE (name) AIRPORT?
(Name) AIRPORT FIELD ELEVATION (feet). IT HAS
(number and surface type) RUNWAYS. THE RUNWAY/S
RUN (direction). THE AIRPORT IS LOCATED
(direction/distance) FROM (landmark visible to the
4. Advise the pilot to report the landing airport
REPORT AIRPORT IN SIGHT.
5. Determine when the pilot no longer needs
DO YOU REQUIRE FURTHER ASSISTANCE?
6. When the pilot indicates assistance is no
longer required, terminate the service. Provide the
CTAF frequency, if appropriate, and the local
(GPS) ORIENTATION SERVICE TERMINATED.
COMMON TRAFFIC ADVISORY FREQUENCY
(frequency). ALTIMETER (setting).
CTAF is defined as a UNICOM, Multicom, FSS, or ATCT
7. Notify appropriate control facility of the
aircraft's position, termination of services, and the