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AIM

10/12/17

4−1−3

Services Available to Pilots

TBL 4−1−1

Summary of Recommended Communication Procedures

Communication/Broadcast Procedures

Facility at Airport

Frequency Use

Outbound

Inbound

Practice

Instrument

Approach

1. UNICOM (No Tower or

FSS)

Communicate with UNICOM

station on published CTAF

frequency (122.7; 122.8; 122.725;

122.975; or 123.0). If unable to

contact UNICOM station, use

self-announce procedures on

CTAF.

Before taxiing and

before taxiing on

the runway for

departure.

10 miles out.

Entering

downwind, base,

and final. Leaving

the runway.

2. No Tower, FSS, or

UNICOM

Self-announce on MULTICOM

frequency 122.9.

Before taxiing and

before taxiing on

the runway for

departure.

10 miles out.

Entering

downwind, base,

and final. Leaving

the runway.

Departing final

approach fix

(name) or on final

approach segment

inbound.

3. No Tower in operation,

FSS open (Alaska only)

Communicate with FSS on CTAF

frequency.

Before taxiing and

before taxiing on

the runway for

departure.

10 miles out.

Entering

downwind, base,

and final. Leaving

the runway.

Approach com-

pleted/terminated.

4. FSS Closed (No Tower)

Self-announce on CTAF.

Before taxiing and

before taxiing on

the runway for

departure.

10 miles out.

Entering

downwind, base,

and final. Leaving

the runway.

5. Tower or FSS not in

operation

Self-announce on CTAF.

Before taxiing and

before taxiing on

the runway for

departure.

10 miles out.

Entering

downwind, base,

and final. Leaving

the runway.

6. Designated CTAF Area

(Alaska Only)

Self-announce on CTAF

designated on chart or Chart

Supplement Alaska.

Before taxiing and

before taxiing on

the runway for

departure until

leaving designated

area.

When entering

designated CTAF

area.

2. CTAF (Alaska Only). In Alaska, a CTAF

may also be designated for the purpose of carrying out

advisory practices while operating in designated

areas with a high volume of VFR traffic.

3. The CTAF frequency for a particular airport

or area is contained in the Chart Supplement U.S.,

Chart Supplement Alaska, Alaska Terminal Publica-

tion, Instrument Approach Procedure Charts, and

Instrument Departure Procedure (DP) Charts. Also,

the CTAF frequency can be obtained by contacting

any FSS. Use of the appropriate CTAF, combined

with a visual alertness and application of the

following recommended good operating practices,

will enhance safety of flight into and out of all

uncontrolled airports.

c. Recommended Traffic Advisory Practices

1. Pilots of inbound traffic should monitor and

communicate as appropriate on the designated CTAF

from 10 miles to landing. Pilots of departing aircraft

should monitor/communicate on the appropriate

frequency from start-up, during taxi, and until

10 miles from the airport unless the CFRs or local

procedures require otherwise.

2. Pilots of aircraft conducting other than

arriving or departing operations at altitudes normally

used by arriving and departing aircraft should

monitor/communicate on the appropriate frequency

while within 10 miles of the airport unless required to

do otherwise by the CFRs or local procedures. Such