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Key words-
ACKNOWLEDGE—Let me know that you have received my message.
AFFIRMATIVE—Yes.
BLOCKED—Phraseology used to indicate that a radio transmission has been distorted or interrupted due to multiple simultaneous radio transmissions.
CLEARED FOR TAKEOFF—ATC authorization for an aircraft to depart.
CLEARED FOR THE OPTION—ATC authorization for an aircraft to make a touch and go, low approach, missed approach, stop and go, or full-stop landing at the discretion of the pilot.
CLEARED TO LAND—ATC authorization for an aircraft to land.
CLOSED TRAFFIC—Successive operations involving takeoffs and landings [touch-and-goes] or low approaches where the aircraft does not exit the traffic pattern.
EXPEDITE—Used by ATC when prompt compliance is required to avoid the development of an imminent situation.
FLY HEADING (Degrees)—Informs the pilot of the heading he should fly. The pilot may have to turn to, or continue on, a specific compass direction in order to comply with the instructions. The pilot is expected to turn in the shorter direction to the heading unless otherwise instructed by ATC.
FUEL REMAINING—A phrase used by either pilots or controllers when relating to the fuel remaining on board until actual fuel exhaustion.
GO AROUND—Instructions for a pilot to abandon his approach to landing. Additional instructions may follow. Unless otherwise advised by ATC, a VFR aircraft or an aircraft conducting visual approach should overfly the runway while climbing to traffic pattern altitude and enter the traffic pattern via the crosswind leg.
HAVE NUMBERS—Used by pilots to inform ATC that they have received runway, wind, and altimeter information only.
HOW DO YOU HEAR ME?-A question relating to the quality of the transmission or to determine how well the transmission is being received.
IDENT—A request for a pilot to activate the aircraft transponder identification feature. Do not confuse this with squawk, which means to tune the transponder code or transponder operating mode.
IMMEDIATELY—Used by ATC when such action compliance is required to avoid an imminent situation.
MAINTAIN—Concerning altitude/flight level, the term means to remain at the altitude/flight level specified. The phrase “climb and” or “descend and” normally precedes “maintain” and the altitude assignment; e.g., “descend and maintain 5,000.
MAKE SHORT APPROACH—Used by ATC to inform a pilot to alter his traffic pattern so as to make a short final approach.
MAYDAY—The international radio telephony distress signal. When repeated three times, it indicates imminent and grave danger and that immediate assistance is requested.
MINIMUM/BINGO FUEL—Indicates that an aircraft’s fuel supply has reached a state where, upon reaching the destination, it can accept little or no delay. This is not an emergency situation but merely indicates an emergency situation is possible should any undue delay occur.
NEGATIVE—”No,” or “permission not granted,” or “that is not correct.”
NEGATIVE CONTACT—Used by pilots to inform ATC that the previously issued traffic is not in sight. It may be followed by the pilot’s request for the controller to provide assistance in avoiding the traffic. Used by pilots to inform ATC they were unable to contact ATC on a particular frequency.
RADAR CONTACT—Used by ATC to inform an aircraft that it is identified on the radar display and radar flight following will be provided until radar identification is terminated.
RADAR SERVICE TERMINATED—Used by ATC to inform a pilot that he will no longer be provided any of the services that could be received while in radar contact.
READ BACK—Repeat my message back to me.
REPORT—Used to instruct pilots to advise ATC of specified information; e.g., “Report passing Hamilton VOR.”
SAY AGAIN—Used to request a repeat of the last transmission.
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.
SPEAK SLOWER—Used in verbal communications as a request to reduce speech rate.
SQUAWK (Mode, Code, Function)—Activate specific modes/ codes/functions on the aircraft transponder, e.g., “Squawk two—one-zero-five.” Squawk does not mean pilot should press the transponder’s IDENT button.
STAND BY/ Wait one.—Means the controller or pilot must pause for a few seconds, usually to attend to other duties of a higher priority. Also means to wait as in “stand by for clearance.” The caller should reestablish contact if a delay is lengthy. “Stand by” is not an approval or denial.
TAXI INTO POSITION AND HOLD—Used by ATC to inform a pilot to taxi onto the departure runway in takeoff position and hold. It is not authorization for takeoff. It is used when takeoff clearance cannot immediately be issued because of traffic or other reasons.
THAT IS CORRECT—The understanding you have is right.
TRAFFIC—A term used by ATC to refer to one or more aircraft.
TRAFFIC IN SIGHT—Used by pilots to inform a controller that previously issued traffic is in sight.
UNABLE—Indicates inability to comply with a specific instruction, request, or clearance.
VERIFY—Request confirmation of information; e.g., “verify assigned altitude.”
ACKNOWLEDGE—Let me know that you have received my message.
AFFIRMATIVE—Yes.
BLOCKED—Phraseology used to indicate that a radio transmission has been distorted or interrupted due to multiple simultaneous radio transmissions.
CLEARED FOR TAKEOFF—ATC authorization for an aircraft to depart.
CLEARED FOR THE OPTION—ATC authorization for an aircraft to make a touch and go, low approach, missed approach, stop and go, or full-stop landing at the discretion of the pilot.
CLEARED TO LAND—ATC authorization for an aircraft to land.
CLOSED TRAFFIC—Successive operations involving takeoffs and landings [touch-and-goes] or low approaches where the aircraft does not exit the traffic pattern.
EXPEDITE—Used by ATC when prompt compliance is required to avoid the development of an imminent situation.
FLY HEADING (Degrees)—Informs the pilot of the heading he should fly. The pilot may have to turn to, or continue on, a specific compass direction in order to comply with the instructions. The pilot is expected to turn in the shorter direction to the heading unless otherwise instructed by ATC.
FUEL REMAINING—A phrase used by either pilots or controllers when relating to the fuel remaining on board until actual fuel exhaustion.
GO AROUND—Instructions for a pilot to abandon his approach to landing. Additional instructions may follow. Unless otherwise advised by ATC, a VFR aircraft or an aircraft conducting visual approach should overfly the runway while climbing to traffic pattern altitude and enter the traffic pattern via the crosswind leg.
HAVE NUMBERS—Used by pilots to inform ATC that they have received runway, wind, and altimeter information only.
HOW DO YOU HEAR ME?-A question relating to the quality of the transmission or to determine how well the transmission is being received.
IDENT—A request for a pilot to activate the aircraft transponder identification feature. Do not confuse this with squawk, which means to tune the transponder code or transponder operating mode.
IMMEDIATELY—Used by ATC when such action compliance is required to avoid an imminent situation.
MAINTAIN—Concerning altitude/flight level, the term means to remain at the altitude/flight level specified. The phrase “climb and” or “descend and” normally precedes “maintain” and the altitude assignment; e.g., “descend and maintain 5,000.
MAKE SHORT APPROACH—Used by ATC to inform a pilot to alter his traffic pattern so as to make a short final approach.
MAYDAY—The international radio telephony distress signal. When repeated three times, it indicates imminent and grave danger and that immediate assistance is requested.
MINIMUM/BINGO FUEL—Indicates that an aircraft’s fuel supply has reached a state where, upon reaching the destination, it can accept little or no delay. This is not an emergency situation but merely indicates an emergency situation is possible should any undue delay occur.
NEGATIVE—”No,” or “permission not granted,” or “that is not correct.”
NEGATIVE CONTACT—Used by pilots to inform ATC that the previously issued traffic is not in sight. It may be followed by the pilot’s request for the controller to provide assistance in avoiding the traffic. Used by pilots to inform ATC they were unable to contact ATC on a particular frequency.
RADAR CONTACT—Used by ATC to inform an aircraft that it is identified on the radar display and radar flight following will be provided until radar identification is terminated.
RADAR SERVICE TERMINATED—Used by ATC to inform a pilot that he will no longer be provided any of the services that could be received while in radar contact.
READ BACK—Repeat my message back to me.
REPORT—Used to instruct pilots to advise ATC of specified information; e.g., “Report passing Hamilton VOR.”
SAY AGAIN—Used to request a repeat of the last transmission.
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.
SPEAK SLOWER—Used in verbal communications as a request to reduce speech rate.
SQUAWK (Mode, Code, Function)—Activate specific modes/ codes/functions on the aircraft transponder, e.g., “Squawk two—one-zero-five.” Squawk does not mean pilot should press the transponder’s IDENT button.
STAND BY/ Wait one.—Means the controller or pilot must pause for a few seconds, usually to attend to other duties of a higher priority. Also means to wait as in “stand by for clearance.” The caller should reestablish contact if a delay is lengthy. “Stand by” is not an approval or denial.
TAXI INTO POSITION AND HOLD—Used by ATC to inform a pilot to taxi onto the departure runway in takeoff position and hold. It is not authorization for takeoff. It is used when takeoff clearance cannot immediately be issued because of traffic or other reasons.
THAT IS CORRECT—The understanding you have is right.
TRAFFIC—A term used by ATC to refer to one or more aircraft.
TRAFFIC IN SIGHT—Used by pilots to inform a controller that previously issued traffic is in sight.
UNABLE—Indicates inability to comply with a specific instruction, request, or clearance.
VERIFY—Request confirmation of information; e.g., “verify assigned altitude.”