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Pilot/Controller Glossary

3/29/18

PCG S−2

SAR−

(See SEARCH AND RESCUE.)

SAY AGAIN− Used to request a repeat of the last

transmission. Usually specifies transmission or

portion thereof not understood or received; e.g., “Say

again all after ABRAM VOR.”
SAY ALTITUDE− Used by ATC to ascertain an

aircraft’s specific altitude/flight level. When the

aircraft is climbing or descending, the pilot should

state the indicated altitude rounded to the nearest 100

feet.
SAY HEADING− Used by ATC to request an aircraft

heading. The pilot should state the actual heading of

the aircraft.
SCHEDULED TIME OF ARRIVAL (STA)− A STA

is the desired time that an aircraft should cross a

certain point (landing or metering fix). It takes other

traffic and airspace configuration into account. A

STA time shows the results of the TBFM scheduler

that has calculated an arrival time according to

parameters such as optimized spacing, aircraft

performance, and weather.
SDF−

(See SIMPLIFIED DIRECTIONAL FACILITY.)

SEA LANE− A designated portion of water outlined

by visual surface markers for and intended to be used

by aircraft designed to operate on water.
SEARCH AND RESCUE− A service which seeks

missing aircraft and assists those found to be in need

of assistance. It is a cooperative effort using the

facilities and services of available Federal, state and

local agencies. The U.S. Coast Guard is responsible

for coordination of search and rescue for the Maritime

Region, and the U.S. Air Force is responsible for

search and rescue for the Inland Region. Information

pertinent to search and rescue should be passed

through any air traffic facility or be transmitted

directly to the Rescue Coordination Center by

telephone.

(See FLIGHT SERVICE STATION.)
(See RESCUE COORDINATION CENTER.)
(Refer to AIM.)

SEARCH AND RESCUE FACILITY− A facility

responsible for maintaining and operating a search

and rescue (SAR) service to render aid to persons and

property in distress. It is any SAR unit, station, NET,

or other operational activity which can be usefully

employed during an SAR Mission; e.g., a Civil Air

Patrol Wing, or a Coast Guard Station.

(See SEARCH AND RESCUE.)

SECNOT−

(See SECURITY NOTICE.)

SECONDARY RADAR TARGET− A target derived

from a transponder return presented on a radar

display.
SECTIONAL AERONAUTICAL CHARTS−

(See AERONAUTICAL CHART.)

SECTOR LIST DROP INTERVAL− A parameter

number of minutes after the meter fix time when

arrival aircraft will be deleted from the arrival sector

list.
SECURITY NOTICE (SECNOT) − A SECNOT is a

request originated by the Air Traffic Security

Coordinator (ATSC) for an extensive communica-

tions search for aircraft involved, or suspected of

being involved, in a security violation, or are

considered a security risk. A SECNOT will include

the aircraft identification, search area, and expiration

time. The search area, as defined by the ATSC, could

be a single airport, multiple airports, a radius of an

airport or fix, or a route of flight. Once the expiration

time has been reached, the SECNOT is considered to

be cancelled.
SECURITY SERVICES AIRSPACE − Areas

established through the regulatory process or by

NOTAM, issued by the Administrator under title 14,

CFR, sections 99.7, 91.141, and 91.139, which

specify that ATC security services are required; i.e.,

ADIZ or temporary flight rules areas.
SEE AND AVOID− When  weather conditions

permit, pilots operating IFR or VFR are required to

observe and maneuver to avoid other aircraft.

Right-of-way rules are contained in 14 CFR Part 91.
SEGMENTED CIRCLE− A system  of visual

indicators designed to provide traffic pattern

information at airports without operating control

towers.

(Refer to AIM.)

SEGMENTS OF AN INSTRUMENT APPROACH

PROCEDURE− An instrument approach procedure

may have as many as four separate segments

depending on how the approach procedure is

structured.

a. Initial Approach− The segment between the

initial approach fix and the intermediate fix or the