Originally Posted by West Coast
"You do not use "Heavy" in the enroute phase of flight"
Reference please.
FAA 7110.65 Air Traffic Controller Manual.
2-4-14. WORDS AND PHRASES
Use the words or phrases in radiotelephone and
interphone communication as contained in the
Pilot/Controller Glossary. The word “heavy” shall be
used as part of the identification of heavy jet aircraft as
follows:
TERMINAL: In all communications with or about
heavy jet aircraft.
ENROUTE: The use of the word heavy may be omitted
except as follows:
a. In communications with a terminal facility about
heavy jet operations.
b. In communications with or about heavy jet aircraft
with regard to an airport where the en route center is
providing approach control service.
c. In communications with or about heavy jet aircraft
when the separation from a following aircraft may
become less than 5 miles by approved procedure.
d. When issuing traffic advisories.