Flight Services Stations-UHF Frequency 255.4

CHAPTER FOUR

SNFO/SWSO VOICE COMMUNICATIONS

After switching to new frequency:

SNFO/SWSO:

"BUCK 714, Harvey, time 15, FL190, estimating

Semmes at time 30, Crestview."

When ATC advises "radar contact", discontinue position reporting. Resume position reporting if

ATC advises "radar contact lost" or "radar services terminated."

406. FLIGHT SERVICE STATIONS - UHF FREQUENCY 255.4

Flight Service Stations (FSSs) are the air traffic service facilities within the national airspace

system. They are responsible for preflight briefings, enroute communications with VFR flights,

assisting lost VFR aircraft, originating NOTAMS, broadcasting aviation weather information,

accepting and closing flight plans, monitoring radio NAVAIDs, assisting search and rescue units

in locating missing aircraft, and operating the national weather teletypewriter systems. In

addition, some FSSs take weather observations, issue airport advisories, administer airman

written examinations, and advise Customs and Immigration of transborder flights. See section

on Composite Clearance/Low Level Reporting for examples of communication with Flight

Service Stations.

407. CHANGE OF FLIGHT PLAN ENROUTE

There may be times when you desire to change your flight plan while airborne because of

weather, fuel considerations, etc. Any revision in destination or route constitutes a change in

flight plan. Transmit corrected information to the appropriate ARTCC prior to any deviation

from assigned clearance. However, realize if ARTCC is too busy to initiate the change of flight

plan, they will direct you to contact the nearest FSS and change the flight plan through FSS. The

format for requesting a change in flight plan is found on the back cover of the IFR Supplement

(Figure 4-4).

4-6

SPECIAL SITUATIONS