2/14/08 JO 7110.10T
General 2-1-1
Chapter 2. Broadcast Procedures
Section 1. General
2-1-1. TYPES OF BROADCASTS
Weather and flight information shall be broadcast/
recorded by one or more of the following categories:
a. Transcribed Weather Broadcast (TWEB).
(Alaska only.)
b. Telephone Information Briefing Service
(TIBS).
c. Hazardous Inflight Weather Advisory Service
(HIWAS).
d. Meteorological Information for Aircraft in
Flight (VOLMET ICAO).
2-1-2. SPEECH RATE
Data shall be spoken at a rate of 100 to 120
words-per-minute.
2-1-3. INTERRUPTION OF BROADCAST
Interrupt broadcast only when you believe that a pilot
requires immediate attention; e.g., to issue an airport
advisory. When a pilot calls during a broadcast:
a. Broadcast for a short interval on the frequency
to which the pilot is listening simultaneously with the
broadcast frequencies, and complete the aircraft
contact immediately after the broadcast.
b. If the pilot repeats the call, interrupt the
broadcast and answer the call.
2-1-4. REDUCING RECORDED WEATHER
INFORMATION SERVICES
Recorded weather information services (TWEB and
TIBS) may be reduced during the hours of
1800-0600 local time only. Resumption of full
broadcast service should be adjusted seasonally to
coincide with daylight hours. During the period of
reduced broadcast, record a statement indicating
when the broadcast will be resumed and to contact
Flight Service for weather briefing and other
services.
PHRASEOLOGYTHE
TIBS RECORDING IS SUSPENDED. REGULAR
RECORDED WEATHER SERVICE WILL BE RESUMED
AT (time) ZULU/ (time) LOCAL. FOR PILOT WEATHER
BRIEFING AND OTHER SERVICES CONTACT A
FLIGHT SERVICE FACILITY (phone number or
additional telephone instructions, as appropriate).
PHRASEOLOGYTHE
TWEB RECORDING IS SUSPENDED. REGULAR
RECORDED WEATHER SERVICE WILL BE RESUMED
AT (time) ZULU/ (time) LOCAL. FOR PILOT WEATHER
BRIEFING AND OTHER SERVICES CONTACT A
FLIGHT SERVICE FACILITY (frequency or phone
number, as appropriate).
2-1-5. ANNOUNCING MISSING ITEMS
With the exception of RVR, announce the word
“MISSING” when any items or components of a
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