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Acronyms

Acronym	Term	Definition
A/C	Aircraft	Short hand for Aircraft on Advisory and OIS.
AADC	Airport Arrival Demand Chart	AADC chart displays the latest arrival demand metrics for selected airports.
AAR	Airport Acceptance Rate, Airport Arrival Rate	The published number of landings per hour that can be made at an airport based on specific conditions.
ABRG	Adaptive Compression Bridging	Control Times updated by adaptive compression bridging.
AC	Adaptive Compression	Adaptive compression is a new approach to compression to help ensure that all slots in a program are used. ETMS continuously monitors each program to see whether a slot is at risk of going unused. If so, ETMS attempts to move the slot back to a time when it can still be used. ETMS does so by selecting other flights to depart earlier, thus providing delay reduction benefits to other flights.
AC_CAT	Aircraft Category	Refers to aircraft categories (jet, propeller, turbo prop).
AC_RMK	Aircraft Remark	Refers to standard keywords representing flights remarks data.
ACARS	ARINC Communications Addressing and Reporting System	A digital data link system for transmission of small messages between aircraft and ground stations via radio or satellite.
ACENTR	Arrival Center	Center responsible for the arrival airport.
ACID	Aircraft Identification	Unique alphanumeric aircraft identifier. Also known as call sign.
ACTV	Activate Message Command in ETMS	Activates a flight or airline in the ETMS airline database, thus removing a restriction that was previously set with the INHB command.
ADC	Airport Demand Chart or Advise Customs	ADC is a web-based, graphical display of airport arrival information. Also used in the flight remarks as advise customs.
ADL	Aggregate Demand List	The ADL is the main data product that drives FSM and the ETMS Ground Delay Program Enhancements operations. ETMS generates an ADL for each element that is being monitored by FSM. The ADL is composed of data extracted from the ETMS hub site databases, which are maintained with a combination of OAG data, CDM Participant provided flight data messages, NAS messages generated from the ATC system, and issued ground delays (EDCTs).
ADPT	Adaptive Compression	Flag indicating a flight's control times are the result of an adaptive compression.
ADR	Airport Departure Rate	The published number of departures per hour that can be made from an airport based on specific conditions.
ADT	Actual Departure Time	Actual time flight departed airport.
ADVZY / ADZY	Advisory Message	An advisory is a message that is disseminated electronically by the ATCSCC or ARTCC. It contains information pertaining to the National Airspace System.
AETE	Actual Estimated Time En Route	Actual Estimated Time En Route
AF	Flight Plan Amendment, Airway Facilities	Message sent from host to ETMS to amend the flight plan data for a flight.
AFIX	Arrival Fix	Arrival fix is located near the airport that the aircraft will fly over as part of an arrival flow.
AFP	Airspace Flow Program	A traffic management (TM) process administered by the ATCSCC. Aircraft are assigned specific airspace arrival slots utilizing flight schedule monitor (FSM) to manage capacity and demand for a specific area of the National Airspace System (NAS). AFPs support the TM mission and mitigate the effects of en route constraints. Please see the AFP Advisory circular for more details.
AGT	Actual Ground Time	The difference between the ARTD and the PGTD.
AGTA	Actual Gate Time of Arrival	Renamed to ARTA - Name changed as previous name was misleading (it is a runway time not a gate time). ARTA is the time from a NAS AZ message. If no AZ has been received, this field is blank.
AGTD	Actual Gate Time of Departure	The actual time the aircraft left the gate. Also the time that the aircraft actually leaves the ground. Renamed to ARTD.
ALD	Airline Delay	The carrier imposed a delay on the flight (delay status).
ALT	Altitude
AOC	Airline Operations Center	The office where operational control of an airline is exercised. Usually a dispatch office.
AOCNet	Airline Operations Center Network	The network used by CDM participants.
ARPT	Airport	Short hand for airport.
ARSR	Air Route Surveillance Radar	Air Route Traffic Control Center (ARTCC) radar used primarily to detect and display an aircraft's position while en route between terminal areas. The ARSR enables controllers to provide radar air traffic control service when aircraft are within the ARSR coverage. In some instances, ARSR may enable an ARTCC to provide terminal radar services similar to but usually more limited than those provided by a radar approach control.
ARTA	Actual Runway Time of Arrival	Actual arrival time from a NAS AZ message or CDM message. If no actual time has been processed, this field is blank.
ARTCC	Air Route Traffic Control Center	A facility established to provide air traffic control service to aircraft operating on IFR flight plans within controlled airspace and principally during the en route phase of flight. When equipment capabilities and controller workload permit, certain advisory/assistance services may be provided to VFR aircraft. There are 20 ARTCCs in the continental U.S.
ARTD	Actual Runway Time of Departure	Actual departure time from a NAS AZ message or CDM message. If no actual time has been processed, this field is blank.
ARTS	Automated Radar Terminal System	A generic term for several tracking systems included in the Terminal Automation Systems (TAS). ARTS plus a suffix roman numeral denotes a major modification to that system.
ASD	Aircraft Situation Display	The former ETMS function that allowed you to communicate with the ETMS databases. This has been replaced by Traffic Situation Display (TSD).
ASDI	Aircraft Situation Display to Industry	The ASDI stream consists of data elements which show the position and flight plans of all aircraft in U.S.
ASECTR	Arrival Sector	An operational control sector containing one or more meter fixes.
ASLOT	Arrival Slot	Arrival slot ID currently assigned to a flight as part of an GDP or AFP. Includes the arrival airport or FCA name, period, slot time in 6-digit format, and an alpha character.
ASP	Arrival Sequencing Program	The automated program designed to assist in sequencing aircraft destined for the same airport.
ASPM	Aviation System Performance Metrics	Provides information on individual flight performance and information on airport efficiency.
ASR	Airport Surveillance Radar	Approach control radar used to detect and display an aircraft's position in the terminal area. ASR provides range and azimuth information but does not provide elevation data. Coverage of the ASR can extend up to 60 miles.
ATC	Air Traffic Control	A service operated by appropriate authority to promote the safe, orderly and expeditious flow of air traffic.
ATCSCC	Air Traffic Control System Command Center	The mission of the ATCSCC is to balance air traffic demand with system capacity.
ATCT	Airport Traffic Control Tower	A terminal facility that uses air/ground communications, visual signaling, and other devices to provide ATC services to aircraft operating in the vicinity of an airport or on the movement area. Authorizes aircraft to land or takeoff at the airport controlled by the tower or to transit the Class D airspace area regardless of flight plan or weather conditions (IFR or VFR). A tower may also provide approach control services (radar or non-radar).
ATD	Actual Time of Departure	The actual time an aircraft becomes airborne.
ATMS	Advanced Traffic Management System	Provides a centralized integrated platform for traffic signal system control, information management, and graphical data display.
ATV	Altitude Reservation (flight remark)	Displays in the flight remark section.
AWC	Aviation Weather Center	A service provided by the National Weather Service (NWS) and FAA which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC.
AZ	Arrival Message (Host)	Message sent by host computer to ETMS when a flight is completed.
BE	Bridge Event	An event that control times were assigned when creating a bridge for an SCS or ECR request (AFP and GDP)
BENTRY	Based Element Entry Time	BENTRY is used to save the ENTRY at the time an AFP is issued or the flight departs. The BENTRY is used to compute the amount of departure delay that can be attributed to an AFP. The BENTRY includes any time-out delay modeled by ETMS.
BETA	Base Estimated Time of Arrival	Used to save the last ETA prior to a flight becoming active or controlled. Similar to OETA, but differs in that it includes time-out delay.
BETD	Base Estimated Time of Departure	Used to save the last ETD prior to a flight becoming active or controlled. Similar to OETA, but differs in that it includes time-out delay.
BLKT	Blanket [EDCT]	A type of control applied to all flights that are part of a specific ground delay program. Control Times updated blanket(+/-) revision of GDP
BRG	SCS Bridge Event (No longer used)	Control times were assigned when creating a bridge for an SCS or ECR request
BZ	Beacon code (message)	A four-digit transponder code assigned to an aircraft by a NAS center. It is forwarded to the ETMS in a Beacon code (BZ) message subsequent to a flight plan and usually prior to a departure message (DZ). It is also transmitted to the ETMS prior to a center hand-off message (UZ).
CAPL	Capacity List (MA function)	Capacity list and refers to the TSD command that shows you the current capacity settings for any airport, fix, or sector.
CAPS	Capacity Select (MA function)	Capacity set and refers to the TSD command that allows you to set the arrival or departure limit of any airport, fix, or sector for periods of time that you specify.
CC	Alarm Status of Control Time	Alarm Status for flights arriving more than 5 minutes before or more than 5 minutes after their Control Time of Arrival
CCAN	Control Times Cancelled	ETMS message that control time was cancelled
CCFP	Collaborative Convective Forecast Product	A process that begins with an initial convective weather forecast for the next 2-6 hours being produced every 2 hours (except for the 05/6Z cycle) by the Aviation Weather Center in Kansas City. This forecast then evolves into a final product through collaboration by participating meteorologists at the Center Weather Service Units (CWSUs), various airlines, and the Aviation Weather Center. The CCFP is a critical input to the development of the Strategic Plan of Operation (SPO) teleconference.
CCSD	Common Constraint Situation Display	A browser based traffic management tool connected via the CDMnet and designed to emulate the ATC Traffic Situation Display (TSD), but built for the user community. Displays FCA information.  The CCSD can be accessed via the ATCSCC Website and CDMnet.
CDM	Collaborative Decision Making	Cooperative effort between the various components of aviation transportation, both government and industry, to exchange information for better decision making.
CDM_MBR	CDM Member Flag	Flag on ADL to identify CDM participant carriers.
CDMNet	Collaborative Decision Making Communications Network	Network used by CDM participants
CDR	Coded Departure Route	Predefined departure routes used to route air traffic around areas of severe weather.
CDT	Controlled Departure Time	The time of departure for a flight currently controlled at an airport by ground delay programs.
CETE	Control Estimated Time En route	The estimated flying time from departure point to destination (lift-off to touchdown).
CF	FSM alarm status	Alarm status for flights that were cancelled but later flew without the flight being reinstated properly.
CGTA	Controlled Gate Time of Arrival	Stands for Controlled Gate Time of Arrival. Renamed to CTA.
CGTD	Controlled Gate Time of Departure	Stands for Controlled Gate Time of Departure. Renamed to CTD.
CIGS	Ceilings	The height above the ground of the base of the lowest layer of clouds when over half of the sky is obscured.
CLR	Clearance	Short hand for clearance, also an ICAO Clearance message.
CLS	Aircraft weight class	Flag on ADL to identify aircraft weight class (heavy, large, or small).
CLSD	Closed	Short hand for closed.
CMPR [EDCT]	Compression	Control Times updated by compression of GDP or AFP.
CNL	Cancel	ICAO Cancel Flight Plan message, short hand for cancelled.
CNS	Consolidated NOTAM Service	A service provided by the National Weather Service (NWS) and FAA which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC.
CNX	Cancel	Short hand for cancel.
COMP	Compression	Control times were assigned as part of a AFP-Compression or GDP-Compression (AFP and GDP).
CONUS	Continental, Contiguous, or Conterminous United States	Stands for both CONtinental United States and CONtiguous United States. Refers to the TSD graphic representation of the U.S. borders with the state outlines shown.
CPL	Current Flight Plan	The flight plan that is active or updated with want the flight will fly.
CR	Collaborative Routing	A CDM work group that focuses on routing initiatives
CR_TIME	Create Time	Used to indicate how long ETMS has known about the flight.
CRCT	Collaborative Routing Coordination Tool	A Mitre reroute tool. One-sided automation (no dispatch input).
CSG	CDM Stakeholders Group	The purpose of the CSG is to provide recommendations to the FAA on CDM priorities and activities, oversee the general direction and mission of CDM and to provide prioritization and tasking on possible technology, communication tools etc., towards attaining system efficiencies for the NAS.
CT messages	Control Time Messages	Messages sent by ETMS to the host computers in order to implemented delays issued as part of a GDP or AFP. A CT message causes an EDCT to be printed on the flight strip at the departure tower.
CTA	Controlled Time of Arrival	Arrival time assigned to a flight as part of a GDP or AFP.
CTAS	Center TRACON (Terminal Radar Approach Control) Automation System	CTAS is a set of tools designed to help air traffic controllers manage the increasingly complex air traffic flows at large airports.
CTD	Controlled Time of Departure	Departure time assigned to a flight as part of a GDP or AFP. Also known as EDCT.
CTFM	Collaborative Traffic Flow Management	A systems approach to use collaborative decision making in traffic flow management.
CTG	Aircraft type	Flag on ADL to identify aircraft type (jets, props, or turboprops).
CTL_ALM	Alarm Flag	Hexadecimal flag on ADL that indicates alarm status such as non compliance to CTD or CTA.
CTL_EXMPT	Control Exempt Flag	ADL flag used to indicate whether the flight was exempt when the AFP/GDP is computed.
CTL_TYPE	Control Type	Specific source (program) of the current CTD/CTA.
CTL-ELEM	Control Element	If a flight is controlled (i.e. has a CTD and CTA)  this field indicates the constrained NAS element for which a ground delay program or ground stop was run. Currently  the CTL_ELEM can be an arrival airport  FEA  or FCA.
CTT	Collaborative Technology Test bed	A test facility where CDM programs can be tested before it goes operational.
CWSU	Center Weather Service Unit	Position in the facility that specializes in weather.
CX	Cancel Flag Identifier	Indicator for a cancellation.
CXSD	Cancel Flight	A cancelled flight from the schedule database and the TSD command that allows you to cancel the current day's flight plan for a flight number you specify. A flight canceled with the CXSD command will not appear in alert or request server reports.
DA	Delay Assignment	The delay that is assigned to an aircraft during a GDP.
DACS	Data Acquisition Communication System (ETMS component)	ETMS system component used for data communication.
DARC	Direct Access Radar Control	Raw Radar without data blocks. DARC is generally used when the HOST computer is down.
DART	Data Analysis and Reduction Tool	A data analysis tool that can be modified by adding more data reduction functions and thus provide the user with specific analyses.
DAS	Delay Assignment	A mode for issuing a GDP or AFP in which pop-up flights are given the same average delay as flights initially controlled in the program. The average delays are referred to as DAS delays (formerly known as FA delays). Also a control type indicating that a flight’s control times are the result of the application of a DAS delay.
DCENTR	Departure Center	ARTCC that contains the departure airport.
DEP	Departure	Short hand for departure.  Can also refer to departure airport.
DEST	Destination Airport	Location the aircraft will land.
DFIX	Departure Fix	The point at which responsibility for control of departing flights passes from a Terminal Control Area to an Air Route Traffic Control Center.
DLY	Delay	Short hand for delay
DMGR	Delay Manager	A graphic software tool that allows the user to simulate and evaluate the effects of ground delay programs. It can simulate a program under consideration or already in place, and it can track the progress of programs.
DO	Drop Out Flight	Indicates a flight that was originally routed through that area but subsequently changed its route such that it no longer traverses the FEA/FCA.
DP	Departure Procedure	Each DP transition is preceded by the full name optionally followed by the DP name and transition fix name, in parentheses, as they would appear in a flight plan. Generally, the root segment ends at the fix, which is the start of the transition.
DPAT	Detailed Policy Assessment Tool	A discrete-event computer simulation that models the interactive effects of the National Airspace System (NAS).
DRVSM	Domestic Reduced Vertical Separation Minimum	Plan for reducing separation between usable altitudes from 2000' to 1000' above FL290, in the US domestic system.
DRWP	Diversion Recovery Web Page	The Diversion Recovery Page provides the FAA and NAS users with a common picture of the diversion recovery flights that are currently in the system.
DSECTR	Departure Sector	An operational control sector containing one or more meter fixes.
DSP	Departure Spacing Program	DSP evaluates aircraft departure flight plans at participating airports, models projected aircraft demand at departure resources such as first and second departure fixes, and provides windows of departure times to controllers.
DTO	Director Technical Operations	Responsible for a certain region of facilities.
DTRSN	Departure Procedure Transition Fixes	The name of the DP transition fix taken from the historical, early intent, or NAS flight plan.
DV	Diverted Flight (cancel status)	The flight was cancelled and diverted to an alternate destination (cancel status).
DV-REC	Diversion Recovery	Indicates that the flight is a recovery of a flight that was previously diverted.
DVRSN	Diversion Remark	Remark that is placed in a flight plans remark section (field 11) for a diversion recovery flight involved in a GDP. The remark signifies priority handling to controllers.
DVT	Diversion Recovery Flight	Flight that has been diverted due to weather or excessive demand that is flagged as a Diversion Recovery.
DZ	Departure Message	Message sent by host computer to ETMS when a flight is activated.
E_TYPE	Aircraft Equipment Type	Includes both aircraft type (TYPE) and equipment type data.
EA	Alarm Status	The actual flight time is greater than a specified value but the flight status is not cancelled. The default value is 15 minutes (alarm status).
EAFT	Estimated Arrival Fix Time	Time over the arrival fix as estimated by ETMS.
EC	Engineering Change	A requested enhancement to a feature that works per requirements and or design.
EC	Alarm Status for Clearance Time	The departure boundaries are more than 5 minutes before or more than 5 minutes after their estimated departure clearance time (alarm status).
ECR	EDCT Change Request	An FSM function used to update the EDCT for a flight. Also used as a control type to indicate that the control times are a result of an ECR request.
e-CVRS	Enhanced Computerized Voice Reservation System	Web reservation and touch tone phone application system
EDCT	Expect Departure Clearance Time	The time issued to a flight to indicate when it can expect to receive departure clearance. EDCTs are issued as part of Traffic Management Programs, such as a Ground Delay Program (GDP).
EDFT	Estimated Departure Fix Time	Time over the departure fix as estimated by ETMS.
EDT	Estimated Departure Time	Based on either actual departure time or proposed departure time.
EENTRY	Earliest Element Entry Time	The earliest possible entry time into the FEA or FCA, as calculated by ETMS.
EFTA	Estimated Fix Time of Arrival	Estimated arrival time over fix.
EGT	Estimated Ground Time	Ground time that is predicted by Ground Time Predictor.
EI	Early Intent Message	CDM message sent by a CDM participant to update the route of flight used by ETMS.
EIAT	En-route Impact Assessment Tool	Tool to evaluate historical data of en-routes.
EMERG	Emergency	Short hand for Emergency on Advisory and OIS
ENTRY	Sector Entry Times	Current  best  estimated time of entry for a flight into an FEA or FCA con­sidering all data sources.
EQUIP	Equipment	Short hand for equipment on Advisory and OIS
ERAM	En Route Automation Modernization plan	A HOST computer modernization project
ERIDS	En Route Information Display System	A prototype ARTCC information display system that is installed in the TMUs at ZLC, ZJX and ZBW, and will be sending pertinent NOTAMs to TMU positions in the near future.
ERTA	Earliest Runway Time of Arrival	The earliest arrival time that the CDM participant would like to have assigned to this flight in a GDP. Based on airline submitted data as the earliest time the flight can arrive.
ERTD	Earliest Runway Time of Departure	The earliest departure time that the CDM participant would like to have assigned to this flight in a GDP. Based on airline submitted data as the earliest time the flight can depart.
ESC	En route Spacing Coordinator (ZDC)	An Air Traffic Coordinator that specializes in enroute spacing.
ESIS	Enhanced Status Information System	A display system designed to provide a large, on the wall, display of currently required control-related information to controllers and TM specialists in each area of the control facilities in which is installed.
ESP	En route Sequencing Program, En route Spacing Program	A program designed to fit departing traffic into a densely packed overhead stream. ESP is responsible for smoothing inter/intrafacility traffic flows. TMC's assigned to this position monitor aircraft destined for specific airports, identify potential problem areas and sectors, and ensure smooth traffic flows by initiating appropriate traffic management strategies.
e-STMP	E-Special Traffic Management Program	A web tool that helps manage the flow of arrivals and departures for these events, the FAA requires users (i.e., non-scheduled IFR flight operators) to make arrival and departure reservations to and from these airports. The e-STMP web application allows users to request, confirm, update, and cancel a reservation online for a specific special event.
ETA	Estimated Time of Arrival	Best estimated runway arrival time, as computed by ETMS considering all available data sources.  Updated Estimated (wheels on) Arrival Time. Prefixes can be E (estimated) L (airline-provided) C (controlled) A (actual)
ETD	Estimated Time of Departure	Best estimated runway departure time, as computed by ETMS considering all available data sources. Updated Estimated (wheels off) Departure time. Prefixes can be S (scheduled) N (early intent) R (rerouted) P (proposed) L (airline-provided) T (taxi) E (estimated) A (actual)
ETE	Estimated Time Enroute	Estimate time are displayed in minutes.  ETE = max ((ETA – ETD) (CTA – CTD)) if configured to use Max ETE. ETE = ETA – ETD if configured to use ETE.
ETMS	Enhanced Traffic Management System	A term describing an array of functionality in the ATC system, but mostly referring to the ETMS database. A database of all flight information sent by both ATC and users, used to drive many of the traffic management tools.
EWG	Enroute Working Group	A CDM workgroup that discusses, evaluate and resolve enroute issues.
EX	Exempt flag	Indicates whether the flight was considered exempt when the last controls were computed by FSM. Values are Y or N.
EXIT	Sector Exit Time	Estimated time of departing an NAS element.
FA	Changed Value message	Flight Amendment (ETMS Generated)
FACET	Future ATM Concepts Evaluation Tool	Same data as CRCT. NASA product. Funding running out in 2004. ADF bought off on FACET. Allows dispatcher input.
FAD	Fuel Advisory Delay	Should mention that this has been replaced by DAS.
FADD	FA Delay message	General FA Delay Message (No longer used)
FADE	FAA/Airline Data Exchange	Interface that is used to exchange data.
FADT	Fuel Advisory Delay Table	Specifies delays that apply to pop-up flights arriving at a controlled airport during a controlled interval.
FADT List	Fuel Advisory Delay Table List	Contains information about all ground delayed flights (all flights that have been issued an OrigEDCT). If a center or an airline has ground delayed flights  their call signs  departure airports  PTimes  EDCTs and CTAs are given for each appropriate center and airline.
FAO	FAA Order	Guideless the FAA has published for organizations to follow.
FC	Flight Plan Create Message (Airline)	CDM message sent by a CDM participant to create a flight.
FCA	Flow Control Area	An area defined by a traffic manager in order to constrain the traffic flying through that area. FCAs can be used in conjunction with AFPs or reroutes to constrain the traffic flow. FCAs can include filters help define the traffic to which the constraint applies.
FCT	Future Concepts of Flow Management Sub-Team	A CDM work group that focuses on concepts of the future.
FDAD	Full Digital ARTS Display	Display system that provides TRACON controllers and traffic managers with monochrome displays of radar targets for flights within and adjacent to the terminal area.
FDB	Flight Data Base (ETMS)	A ‘live’ flight database of all flight information for up to 12 hours in the past and 24 hours in the future.
FDIO	Flight Data Input/Output	A printer that provides hard copy of TM advisories
FEA	Flow Evaluation Area	FEAs provide reroute modeling using the Create Reroute capability. Stakeholders can monitor shared FEAs through reroute monitor in traffic situation display (TSD).
FET	Flow Evaluation Team	The Flow Evaluation sub-team will strive to increase system efficiency by reducing route coordination time and enhancing system planning through the creation of common situational awareness of potential route alternatives, procedures and coordination processes. This sub-team will develop any potential opportunities having to do with routes or issues generally within the en route domain.
FFP	Free Flight Phase/Program	The concept of Free Flight will give operators maximum flexibility, consistent with safety, to fly fuel-efficient routes.
FH	Historical Flight Route message	An internal ETMS message used to apply a historical route to a flight created from a CDM message.
FIXL	Fix Loading	The manager can request a count of the number of flights traversing a specified arrival fix or all arrival fixes for a specified airport.
FL	Flight Level	The attitude the aircraft is located.  e.g., FL290 for 29,000 feet.
FM	Flight Plan Modification Message	CDM message sent by a CDM participant to update data, such as times, for a flight.
FMSS	ETMS Message by User	Control Times updated by user substitution
FOC	Flight Operations Center	A facility that has flight operations.
FOS	Flight Operations System	American Airlines’ homegrown tool for flight schedule database.
FP	Flight Plan message	A message used by a NAS user to send a flight plan to the host computer. Also can be used to send an early intent flight plan to ETMS.
FPA	Flight Plan Area	The geographical area assigned by regional air traffic divisions to a flight service station for the purpose of search and rescue for VFR aircraft, issuance of NOTAMs, pilot briefing, in-flight services, broadcast, emergency services, flight data processing, international operations, and aviation weather services.
FPL	Filed Flight Plan message	ICAO identifier for filed flight plan.
FPPP	Flight Plan Pre-Processor	a.k.a. FP3. A CDM application developed by Mitre that analyzes user flight plan data against a database of ATC facility LOAs and SOPs. Emulates the HOST environment.
FPSD	Flight Plan Schedule Database	The TSD command that allows you to add a flight plan record to the Official Airline Guide (OAG) database. The flight plan will remain in the database marked as an “added flight” until the next OAG update.