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NOTEThe
pilot is authorized to conduct descent “at pilot's
discretion” until reaching Lakeview VOR. The pilot must
comply with the clearance provision to cross the Lakeview
VOR at or above FL 200, and after passing Lakeview VOR,
the pilot is expected to descend at the rates specified in the
AIM until reaching the assigned altitude of 6,000 feet.
EXAMPLE-
“United Four Seventeen, cross Lakeview V-O-R at and
maintain six thousand.”
NOTEThe
pilot is authorized to conduct descent “at pilot's
discretion,” but must comply with the clearance provision
to cross Lakeview VOR at 6,000 feet.
EXAMPLE-
“United Four Seventeen, descend now to flight level two
seven zero, cross Lakeview V-O-R at or below one zero
thousand, descend and maintain six thousand.”
NOTEThe
pilot is expected to promptly execute and complete
descent to FL 270 upon receipt of the clearance. After
reaching FL 270, the pilot is authorized to descend “at
pilot's discretion” until reaching Lakeview VOR. The pilot
must comply with the clearance provision to cross
Lakeview VOR at or below 10,000 feet. After Lakeview
VOR, the pilot is expected to descend at the rates specified
in the AIM until reaching 6,000 feet.
NOTE-
1. A descent clearance which specifies a crossing altitude
authorizes descent at pilot's discretion for that portion of
the flight to which the crossing altitude restriction applies.
2. Any other time that authorization to descend at pilot's
discretion is intended, it must be specifically stated by the
controller.
3. The pilot may need to know of any future restrictions
that might affect the descent, including those that may be
issued in another sector, in order to properly plan a descent
at pilot's discretion.
4. Controllers need to be aware that the descent rates in
the AIM are only suggested and aircraft will not always
descend at those rates.
REFERENCEP/
CG Term- Pilot's Discretion.
e. When a portion of a climb/descent may be
authorized at the pilot's discretion, specify the
altitude the aircraft must climb/descend to followed
by the altitude to maintain at the pilot's discretion.
PHRASEOLOGYCLIMB/
DESCEND NOW TO (altitude), THEN
CLIMB/DESCEND AT PILOT'S DISCRETION
MAINTAIN (altitude).
EXAMPLE-
“United Three Ten, descend now to flight level two eight
zero, then descend at pilot's discretion maintain flight level
two four zero.”
NOTE-
1. The pilot is expected to commence descent upon receipt
of the clearance and to descend at the suggested rates
specified in the AIM, para 4-4-10, Adherence to
Clearance, until reaching FL 280. At that point, the pilot
is authorized to continue descent to FL 240 within the
context of the term “at pilot's discretion” as described in
the AIM.
2. Controllers need to be aware that the descent rates in
the AIM are only suggested and aircraft will not always
descend at those rates.
f. When the “pilot's discretion” portion of a
climb/descent clearance is being canceled by
assigning a new altitude, inform the pilot that the new
altitude is an “amended altitude.”
EXAMPLE-
“American Eighty Three, amend altitude, descend and
maintain Flight Level two six zero.”
NOTEAmerican
Eighty Three, at FL 280, has been cleared to
descend at pilot's discretion to FL 240. Subsequently, the
altitude assignment is changed to FL 260. Therefore, pilot's
discretion is no longer authorized.
g. Altitude assignments involving more than one
altitude.
PHRASEOLOGYMAINTAIN
BLOCK (altitude) THROUGH (altitude).
h. Instructions to vertically navigate on a
STAR/RNAV STAR/FMSP with published
restrictions.
PHRASEOLOGYDESCEND
VIA (STAR/RNAV STAR/FMSP name and
number)
TERMINAL: DESCEND VIA (STAR/RNAV STAR/FMSP
name and number and runway number).
EXAMPLE-
“Descend via the Mudde One Arrival.”
“Cross JCT at flight level two four zero, then descend via
the Coast Two Arrival.”
TERMINAL: “Descend via the Lendy One Arrival,
Runway 22 left.”
JO 7110.65S 2/14/08
4-5-6 Altitude Assignment and Verification
NOTEClearance
to “descend via” authorizes pilots:
1. To vertically and laterally navigate on a STAR/RNAV
STAR/FMSP.
2. When cleared to a waypoint depicted on a STAR/RNAV
STAR/FMSP, to descend from a previously assigned
altitude at pilot's discretion to the altitude depicted for that
waypoint, and once established on the depicted arrival, to
　
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