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AIM 

6/17/21 

runway three zero. Advise on initial contact you have 
information sierra. 

c. 

Pilots should listen to ATIS broadcasts 

whenever ATIS is in operation. 

d. 

Pilots should notify controllers on initial 

contact that they have received the ATIS broadcast by 
repeating the alphabetical code word appended to the 
broadcast. 

EXAMPLE

 

“Information Sierra received.” 

e. 

When a pilot acknowledges receipt of the ATIS 

broadcast, controllers may omit those items con-
tained in the broadcast if they are current. Rapidly 
changing conditions will be issued by ATC and the 
ATIS will contain words as follows: 

EXAMPLE

 

“Latest ceiling/visibility/altimeter/wind/(other condi-
tions) will be issued by approach control/tower.” 

NOTE

 

The absence of a sky condition or ceiling and/or visibility 
on ATIS indicates a sky condition or ceiling of 5,000 feet or 
above and visibility of 5 miles or more. A remark may be 
made on the broadcast, “the weather is better than 
5000 and 5,” or the existing weather may be broadcast. 

f. 

Controllers will issue pertinent information to 

pilots who do not acknowledge receipt of a broadcast 
or who acknowledge receipt of a broadcast which is 
not current. 

g. 

To serve frequency limited aircraft, FSSs are 

equipped to transmit on the omnirange frequency at 
most en route VORs used as ATIS voice outlets. Such 
communication interrupts the ATIS broadcast. Pilots 
of aircraft equipped to receive on other FSS 
frequencies are encouraged to do so in order that these 
override transmissions may be kept to an absolute 
minimum. 

h. 

While it is a good operating practice for pilots 

to make use of the ATIS broadcast where it is 
available, some pilots use the phrase “have numbers” 
in communications with the control tower. Use of this 
phrase means that the pilot has received wind, 
runway, and altimeter information ONLY and the 
tower does not have to repeat this information. It does 
not indicate receipt of the ATIS broadcast and should 
never be used for this purpose. 

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14.  Automatic Flight Information 

Service (AFIS) 

 Alaska FSSs Only 

a. 

AFIS is the continuous broadcast of recorded 

non

control information at airports in Alaska where 

an FSS provides local airport advisory service. Its 
purpose is to improve FSS specialist efficiency by 
reducing frequency congestion on the local airport 
advisory frequency. 

1. 

The AFIS broadcast will automate the 

repetitive transmission of essential but routine 
information (for example, weather, favored runway, 
braking action, airport NOTAMs, etc.). The informa-
tion is continuously broadcast over a discrete VHF 
radio frequency (usually the ASOS frequency). 

2. 

Use of AFIS is not mandatory, but pilots who 

choose to utilize two

way radio communications 

with the FSS are urged to listen to AFIS, as it relieves 
frequency congestion on the local airport advisory 
frequency. AFIS broadcasts are updated upon receipt 
of any official hourly and special weather, and 
changes in other pertinent data. 

3. 

When a pilot acknowledges receipt of the 

AFIS broadcast, FSS specialists may omit those 
items contained in the broadcast if they are current. 
When rapidly changing conditions exist, the latest 
ceiling, visibility, altimeter, wind or other conditions 
may be omitted from the AFIS and will be issued by 
the FSS specialist on the appropriate radio frequency. 

EXAMPLE

 

“Kotzebue information ALPHA. One six five five zulu. 
Wind, two one zero at five; visibility two, fog; ceiling one 
hundred overcast; temperature minus one two, dew point 
minus one four; altimeter three one zero five. Altimeter in 
excess of three one zero zero, high pressure altimeter 
setting procedures are in effect. Favored runway two six. 
Weather in Kotzebue surface area is below V

F

minima 

 an ATC clearance is required. Contact 

Kotzebue Radio on 123.6 for traffic advisories and advise 
intentions. Notice to Airmen, Hotham NDB out of service. 
Transcribed Weather Broadcast out of service. Advise on 
initial contact you have ALPHA.” 

NOTE

 

The absence of a sky condition or ceiling and/or visibility 
on Alaska FSS AFIS indicates a sky condition or ceiling of 
5,000 feet or above and visibility of 5 miles or more. A 
remark may be made on the broadcast, “the weather is 
better than 5000 and 5.” 

b. 

Pilots should listen to Alaska FSSs AFIS 

broadcasts whenever Alaska FSSs AFIS is in 
operation. 

Services Available to Pilots 

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