Air Traffic Controllers (ATC) will inform aircraft on initial contact whenever radar outages prevent basic radar services from being issued
ATC will apply paragraph 7-1-3, Approach Control Service for Visual Flight Rules (VFR) Arriving Aircraft
ATC will provide the service, to the extent possible using an available frequency, if an aircraft desires the service but cannot communicate on the appropriate frequencies
Aircraft which do not desire radar service may be fitted into the landing sequence by the tower
Coordination of these aircraft must be accomplished with the approach control unless a facility directive/Letter of Agreement (LOA)prescribes otherwise
Nonparticipating aircraft must, to the extent possible, will receive the same landing sequence they would have received had they been sequenced by radar vectors
Unless the pilot states that the service is not requested, ATC will provide radar sequencing to the primary airport
Arriving aircraft are assumed to want radar service unless the pilot states "Negative radar service" or makes a similar comment
Sequencing at locations where procedures have been established for this purpose and/or when covered by an LOA
Safety Alerts:
A safety alert will be issued to pilots of aircraft controlled by ATC if the controller is aware the aircraft is at an altitude that, in the controller's judgment, places the aircraft in unsafe proximity to terrain, obstructions, or other aircraft
This service is contingent upon the capability of the controller to have an awareness of a situation involving unsafe proximity to terrain, obstructions, and uncontrolled aircraft
Safety Alerts are mandatory services provided to ALL aircraft
Safety alert issuances cannot be mandated, but they can be expected on a reasonable though intermittent basis
Stated another way, you cannot expect ATC to see every possible hazard, but when they do, they must say something
Once the alert is issued, it is solely the pilot's prerogative to determine what course of action, if any, to take
Safety alerts are for use in time-critical situations where aircraft safety is in question
Non-critical situations should be handled via normal traffic alert procedures
Aircraft systems such as Automatic Dependent Surveillance-Broadcast (ADS-B) may also provide safety alerts
A Terrain/Obstruction Alert is issued when, in the controller's judgment, an aircraft's altitude places it in unsafe proximity to terrain and/or obstructions
Issuance is contingent upon the controller's awareness
ATC: "Low altitude alert Cessna Three Four Juliet, check your altitude immediately. And if the aircraft is not yet on final approach, the Minimum Vectoring Altitude (Minimum Enroute Altitude/Minimum IFR Altitude/Minimum Obstruction Clearance Altitude) in your area is six thousand"
The controller will discontinue alerts if informed by the pilot they're taking action or that the obstruction is in sight
Terrain or obstruction alerts are for use in time-critical situations where aircraft safety is in question
Minimum Safe Altitude Warning:
Designed solely as a controller aid when a tracked mode C equipped aircraft under their control is within potentially unsafe proximity to terrain/obstructions
Terminal Automated Radar Terminal System (ARTS) IIIA, Common ARTS (to include ARTS IIIE and ARTS IIE) (CARTS), Micro En Route Automated Radar Tracking System (MEARTS), and Standard Terminal Automation Replacement System (STARS) facilities have an automated function which, if operating, alerts controllers when a tracked Mode C equipped aircraft under their control is below or predicted to be below a predetermined minimum safe altitude
The ARTS IIIA, CARTS, MEARTS, and STARS facility will, when Minimum Safe Altitude Warning (MSAW) is operating, provide MSAW monitoring for all aircraft with an operating Mode C altitude encoding transponder as tracked by the system and are:
Operating on an Instrument Flight Rules (IFR) flight plan; or
Operating VFR and have requested MSAW monitoring
Pilots operating VFR may request MSAW monitoring
PILOT: "Apache Three Three Papa request MSAW monitoring"
Aircraft Conflict Alerts:
Controllers will immediately issue an alert to the pilot of an aircraft under their control if they are aware of another aircraft that is not under their control, at an altitude that, in the controller's judgment, places both aircraft in unsafe proximity to each other
With the alert, when feasible, the controller will offer the pilot the position of the traffic if time permits and an alternate course(s) of action
Any alternate course(s) of action the controller may recommend to the pilot will be predicated only on other traffic being worked by the controller
ATC: "American Three, traffic alert, position of traffic, if time permits], advise you turn [right/left] heading [degrees] and/or [climb/descend] to [altitude] immediately"
The controller will discontinue alerts if informed by the pilot that they're taking action or the other aircraft is in sight
Traffic Advisories:
Advisories issued to alert pilots to other known or observed air traffic that may be in such proximity to the position or intended route of flight of their aircraft to warrant their attention
Such advisories may be based on:
Visual observation
Observation of radar identified and nonidentified aircraft targets on an ATC radar display, or
Verbal reports from pilots or other facilities
Note 1: The word "traffic" followed by additional information, if known, is used to provide such advisories; e.g., "Traffic, 2 o'clock, one zero miles, southbound, eight thousand"
Note 2: ATC provides traffic advisory services to the extent possible depending on higher priority duties of the controller or other limitations, e.g., radar limitations, the volume of traffic, frequency congestion, or controller workload. Radar/ nonradar traffic advisories do not relieve the pilot of his/her responsibility to see and avoid other aircraft. There are many times when the controller is not able to give traffic advisories concerning all traffic in the aircraft's proximity; in other words, when a pilot requests or is receiving traffic advisories, he/she should not assume that all traffic will be issued
Radar equipped ATC facilities provide radar assistance and navigation service (vectors) to VFR aircraft provided the aircraft can communicate with the facility, are within radar coverage, and can be radar identified
Vectoring service may be requested by the pilot or with pilot concurrence when suggested by ATC
Pilots should clearly understand that radar vectors do not constitute authorization for the pilot to violate Code of Federal Regulations (CFRs). In effect, the assistance provided is on the basis that navigational guidance information issued is advisory and the job of flying the aircraft safely remains with the pilot
In many cases, controllers cannot determine if flight into instrument conditions will result from their instructions. To avoid possible hazards resulting from being vectored into IFR conditions, pilots should keep controllers advised of the weather conditions in which they are operating and along the course ahead
Radar navigation assistance (vectors) may be initiated by the controller when one of the following conditions exist:
The controller suggests the vector, and the pilot concurs
A special program has been established and vectoring service has been advertised
In the controller's judgment, the vector is necessary for air safety
Radar navigation assistance (vectors) and other radar-derived information may be provided in response to pilot requests
Many factors, such as limitations of radar, the volume of traffic, communications frequency, congestion, and controller workload, could prevent the controller from providing it. Controllers have complete discretion to provide the service in a particular case. Their decision not to provide the service in a particular case is not subject to question
Aircraft Sequencing:
Sequencing for VFR aircraft is available at certain terminal locations (see locations listed in the Chart Supplement U.S.). The purpose of the service is to adjust the flow of arriving VFR and IFR aircraft into the traffic pattern safely and to provide radar traffic information to departing VFR aircraft. Pilot participation is urged but is not mandatory. Traffic information is provided on a workload permitting basis. Aircraft sequencing service does not offer standard radar separation between VFR or between VFR and IFR aircraft
Pilots of arriving VFR aircraft should initiate radio contact on the publicized frequency with approach control when approximately 25 miles from the airport at which sequencing services are being provided
On initial contact by VFR aircraft, approach control will assume that sequencing service is requested
After establishing radar contact, the pilot may use pilot navigation to enter the traffic pattern or, depending on traffic conditions; approach control may provide the pilot with routings or vectors necessary for proper sequencing with other participating VFR and IFR traffic en route to the airport
When a flight is behind a preceding aircraft and the pilot reports having that aircraft in sight, ATC instructs the pilot to follow the preceding aircraft
The ATC instruction to follow the preceding aircraft does not authorize the pilot to comply with any ATC clearance issued to the preceding aircraft
If other "nonparticipating" or "local" aircraft are in the traffic pattern, the tower will issue a landing sequence
If an arriving aircraft does not want radar service, the pilot should state "negative radar service" or make a similar comment on initial contact with approach control
Approach control will issue wind and runway, except when the pilot states "have numbers" or this information is contained in the Automatic Terminal Information Service (ATIS) broadcast and the pilot reports receiving the current ATIS information
Traffic information is provided on a workload permitting basis
Approach control will specify the time or place the pilot is to contact the tower on local control frequency for further landing information
Radar service is automatically terminated when an arriving VFR aircraft receiving radar services to a tower-controlled airport is instructed to change to tower or advisory frequency. (See FAA Order JO 7110.65, Air Traffic Control, Paragraph 5-1-13, Radar Service Termination)
Pilots of departing VFR aircraft are encouraged to request radar traffic information by notifying ground control, or where applicable, clearance delivery, on initial contact with their request and proposed direction of flight
Pilot: Xray ground control, November One Eight Six, Cessna One Seventy Two, ready to taxi, VFR southbound at 2,500, have information bravo and request radar traffic information"
Note the tower will advise when to contact departure control following takeoff
Pilots of aircraft transiting the area and in radar contact/communication with approach control will receive traffic information on a controller workload permitting basis
Pilots of such aircraft should give their position, altitude, aircraft call sign, aircraft type, radar beacon code (if transponder equipped), destination, and/or route of flight
Air Route Traffic Control Center (ARTCC):
In air traffic control, an Area Control Center (ACC), also known as a Center
Is a facility responsible for controlling instrument flight rules aircraft en route in a particular volume of airspace (a Flight Information Region) at high altitudes between airport approaches and departures
Terminal Radar Approach Control (TRACON):
The TRACON is generally within the vicinity of an airport
Typically, the TRACON controls aircraft approaching and departing between 5 and 50 miles of the airport
Radar equipment allows an air traffic controller to "see" the aircraft even at that distance
Terminal Radar Services for VFR Aircraft:
Terminal Radar Service Area (TSRA) Service (Radar Sequencing and Separation Service):
Specific terminal locations implement this service as advertised in the Chart Supplement U.S. This service aims to provide separation between all participating VFR aircraft and all IFR aircraft operating within the airspace defined as the TSRA. Pilot participation is urged but is not mandatory
If any aircraft does not want the service, the pilot should state "negative TSRA service" or make a similar comment, on initial contact with approach control or ground control, as appropriate
TRSAs are depicted on sectional aeronautical charts and listed in the Chart Supplement U.S.
While operating within a TRSA, pilots are provided TRSA service and separation as prescribed in this paragraph. Separation and sequencing of VFR aircraft suspend in a radar outage as this service depends on radar. The pilot will be advised that the service is unavailable and issued wind, runway information, and the time or place to contact the tower. Traffic information will be provided on a workload permitting basis
When prevailing conditions permit, visual separation is applied as follows:
When a VFR flight is behind a preceding aircraft and the pilot reports having that aircraft in sight, the pilot will be instructed by ATC to follow the preceding aircraft. Radar service will be continued to the runway. The ATC instruction to follow the preceding aircraft does not authorize the pilot to comply with any ATC clearance issued to the preceding aircraft
If other "nonparticipating" or "local" aircraft are in the traffic pattern, the tower will issue a landing sequence
Departing VFR aircraft may be asked if they can visually follow a preceding departure out of the TRSA. The pilot will be instructed to follow the other aircraft provided that the pilot can maintain visual contact with that aircraft
Participating VFR aircraft will be separated from IFR and other participating VFR aircraft by one of the following:
500 feet vertical separation
Visual separation
Target resolution (a process to ensure that correlated radar targets do not touch)
Participating pilots operating VFR in a TRSA:
Must maintain an altitude when assigned by ATC unless the altitude assignment is to maintain at or below a specified altitude. ATC may assign altitudes for separation that do not conform to 14 CFR Section 91.159. When the pilot can maintain separation without an assigned altitude or when leaving the TRSA, the instruction will broadcast, "resume appropriate VFR altitudes." Pilots must then return to an altitude that conforms to 14 CFR Section 91.159 as soon as practicable
When not assigned an altitude, the pilot should coordinate with ATC before any altitude change
Within the TRSA, traffic information on observed but unidentified targets will, to the extent possible, be provided to all IFR and participating VFR aircraft. The pilot will be vectored upon request to avoid the observed traffic, provided the aircraft to be vectored is within the airspace under the jurisdiction of the controller
Departing aircraft should inform ATC of their intended destination and/or route of flight and proposed cruising altitude
ATC will normally advise participating VFR aircraft when leaving the geographical limits of the TRSA. Radar service is not automatically terminated with this advisory unless specifically stated by the controller
Class C Service: This service provides, in addition to basic radar service, approved separation between IFR and VFR aircraft, and sequencing of VFR arrivals to the primary airport
Class B Service: This service provides, in addition to basic radar service, approved separation of aircraft based on IFR, VFR, and/or weight, and sequencing of VFR arrivals to the primary airport(s)
ATC services for VFR aircraft participating in terminal radar services are dependent on ATC radar. Services for VFR aircraft are not available during periods of a radar outage. The pilot will be advised when VFR services are limited or not available
NOTE-Class B and Class C airspace are areas of regulated airspace. The absence of ATC radar does not negate the requirement of an ATC clearance to enter Class B airspace or two-way radio contact with ATC to enter Class C airspace
Radar Traffic Information Service (Flight Following):
Radar Traffic Information Service, more commonly known as flight following, is an air traffic control service that provides pilots with advisories of any observed radar target along the route of flight which may be hazardous
This is to alert the pilot to the traffic, to be on the lookout for it, and thereby be in a better position to take appropriate action should the need arise
Pilots receiving this service are advised of any radar target observed on the display which may be in such proximity to the position or intended route that it warrants attention
Does not relieve the pilot of continual vigilance to see and avoid other aircraft
Pilots are reminded that the surveillance radar used by ATC does not provide altitude information unless the aircraft is equipped with Mode C and the radar facility is capable of displaying altitude information
Issuance of traffic information is intended to alert the pilot to the traffic, to be on the lookout for it, and thereby be in a better position to take appropriate action should the need arise
Radar ATC facilities normally display and monitor both primary and secondary radar as well as ADS-B, although the primary source may differ based on airspace
The monitoring of these sources allow controllers to issue traffic information of known targets based on proximity along a pilot's flight path
Provisions of the Service:
Traffic information is routinely provided to all aircraft operating on IFR flight plans except when the pilot declines the service or the pilot is operating within Class A airspace
Traffic information may be provided to VFR flights (regardless of a filed flight plan) when requested
Many factors, such as limitations of the radar, the volume of traffic, controller workload, and communications frequency congestion, could prevent the controller from providing this service
Controllers possess complete discretion for determining whether they can provide or continue to provide this service based on workload
The controller's reason against providing or continuing to provide the service in a particular case is not subject to question, nor does it need to be communicated to the pilot
In other words, the provision of this service is entirely dependent upon whether controllers believe they are in a position to provide it
Radar ATC facilities normally display and monitor both primary and secondary radar when it is available, except that secondary radar may be used as the sole display source in Class A airspace, and under some circumstances outside of Class A airspace (beyond primary coverage and in en route areas where only secondary is available). Secondary radar may also be used outside Class A airspace as the sole display source when the primary radar is temporarily unusable or out of service. Pilots in contact with the affected ATC facility are normally advised when a temporary outage occurs; i.e., "primary radar out of service; traffic advisories available on transponder aircraft only." This means simply that only the aircraft which have transponders installed and in use will be depicted on ATC radar indicators when the primary radar is temporarily out of service
Except in programs where radar service is automatically terminated, the controller will advise the aircraft when radar is terminated
Participation by VFR pilots in formal programs implemented at certain terminal locations constitutes pilot request. This also applies to participating pilots at those locations where arriving VFR flights are encouraged to make their first contact with the tower on the approach control frequency
Requesting Flight Following:
Flight following may be requested by ATC as early as when contacting clearance delivery or ground control
"[Agency], [Callsign], ready to taxi, request flight following to [Location/Working Area]"
If operating out of an uncontrolled airfield, or already airborne, you may contact the controlling agency (approach/center) airborne
To request flight following, first provide an initial call to the Air Traffic Control Center servicing your area of operation
"[Agency], [Callsign], with request"
ATC will respond when able to receive the pilot's request
"[Callsign], [Agency], say request"
Be sure to provide ATC a location (so they know where you are) and your intentions, such as a destination or working area (so they know your route)
"[Callsign], [Location], request flight following to [Destination]"
With an understanding of your request, ATC will acknowledge they see you and give you instructions so they can appropriately track your flight
Traffic information will include the following concerning a target that may constitute traffic for an aircraft that is:
Radar Identified:
Azimuth from the aircraft in terms of the 12-hour clock, or
When rapidly maneuvering civil test or military aircraft prevents accurate traffic issuance, ATC reports the direction from an aircraft's position in the eight cardinal compass points (N, NE, E, SE, S SW, W, NW). This method must be terminated at the pilot's request
The distance from the aircraft in nautical miles;
The direction in which the target is proceeding; and
Type of aircraft and altitude if known
Example:
ATC: "Traffic 10 o'clock, 3 miles, west-bound, type aircraft and altitude unknown"
The altitude may be known, by means of Mode C, but not verified with the pilot for accuracy. (To be valid for separation purposes by ATC, the accuracy of Mode C readouts must be verified. This is usually accomplished upon initial entry into the radar system by a comparison of the readout to pilot stated altitude, or the field elevation in the case of continuous readout being received from an aircraft on the airport.) When necessary to issue traffic advisories containing unverified altitude information, the controller will issue the advisory in the same manner as if it were verified due to the accuracy of these readouts. The pilot may upon receipt of traffic information, request a vector (heading) to avoid such traffic. The vector will be provided to the extent possible as determined by the controller provided the aircraft to be vectored is within the airspace under the jurisdiction of the controller
Not Radar Identified:
The distance and direction to or from a fix;
The direction in which the target is proceeding; and
Type of aircraft and altitude if known
Example:
ATC: "Traffic 8 miles south of the airport, north-eastbound (type aircraft and altitude, if known)"
Traffic information is given based on aircraft track (what controllers can see) not aircraft heading:
Example: In [Figure 1], traffic information would be issued to the pilot of aircraft "A" as 12 o'clock. The actual position of the traffic as seen by the pilot of aircraft "A" would be 2 o'clock. Traffic information issued to aircraft "B" would also be given as 12 o'clock, but in this case, the pilot of "B" would see the traffic at 10 o'clock
Example: In [Figure 2], traffic information would be issued to the pilot of aircraft "C" as 2 o'clock. The actual position of the traffic as seen by the pilot of aircraft "C" would be 3 o'clock. Traffic information issued to aircraft "D" would be at an 11 o'clock position. Since it is not necessary for the pilot of aircraft "D" to apply wind correction (crab) to remain on track, the actual position of the traffic issued would be correct. Since the radar controller can only observe aircraft track (course) on the radar display, traffic advisories are issued accordingly, and pilots should give due consideration to this fact when looking for reported traffic
Induced Error in Position of Traffic
Induced Error in Position of Traffic
Flight Following Considerations:
Flight Following does not relieve the pilot of the responsibility for continual vigilance to see and avoid other aircraft, nor is it a clearance or exemption from any regulatory requirements like two-way communication in certain airspaces
ATC can also provide other services while in contact with pilots, such as weather or obstruction avoidance
Note that surveillance radar used by ATC does not provide altitude information unless the aircraft is Mode C equipped and the radar facility is capable of displaying altitude information
If an outage occurs, pilots in contact with the affected ATC facility are normally advised, and service limitations may be imposed
"primary radar out of service; traffic advisories available on transponder or ADS-B aircraft only"
When receiving VFR radar advisory service, pilots should monitor the assigned frequency at all times
Monitoring precludes controllers' concern for radio failure or emergency assistance to aircraft under the controller's jurisdiction
VFR radar advisory service does not include vectors away from conflicting traffic unless requested by the pilot
When advisory service is no longer desired, advise the controller before changing frequencies and then change your transponder code to 1200, if applicable
Pilots should also inform the controller when changing VFR cruising altitude and may be explicitly requested to do so
ATC cannot reliably provide traffic alerts if you're changing altitudes without telling them
If an ATC clearance is obtained (i.e., flying through controlled airspace) while under flight following, no pilot in command may deviate from that clearance unless an amended clearance is obtained, an emergency exists, or the deviation is in response to a traffic alert and collision avoidance system resolution advisory
Except in an emergency, no person may operate an aircraft contrary to an ATC instruction in an area in which air traffic control is exercised
Each pilot in command who, in an emergency, or in response to a traffic alert and collision avoidance system resolution advisory, deviates from an ATC clearance or instruction shall notify ATC of that deviation as soon as possible
Each pilot in command who (though not deviating from a rule of this subpart) is given priority by ATC in an emergency, shall submit a detailed report of that emergency within 48 hours to the manager of that ATC facility, if requested by ATC
Unless otherwise authorized by ATC, no person operating an aircraft may operate that aircraft according to any clearance or instruction that has been issued to the pilot of another aircraft for radar air traffic control purposes
Except in programs where radar service is automatically terminated, the controller will advise the aircraft when radar service is terminated
Traffic information is routinely provided to all aircraft operating on IFR flight plans except when the pilot declines the service or the pilot is operating within Class A airspace
Traffic information may be provided to flights not operating on IFR flight plans when requested by pilots of such flights
Advantages include clearance through certain airspace, such as restricted areas when they're not active
Participation by VFR pilots in formal programs implemented at certain terminal locations constitutes a pilot request
This also applies to participating pilots at those locations where arriving VFR flights are encouraged to make their first contact with the tower on the approach control frequency
Vectors to avoid traffic can be requested/provided within radar coverage
Vectors do not constitute violating CFR
ATC is not putting you on a flight plan, so questions about route of flight, destination, etc. may come up along the route of flight from controller to controller
Remember, surveillance radar does not provide altitude information unless the aircraft is equipped with Mode C and the radar facility is capable of displaying altitude information
Approach will issue wind and runway except when the pilot states "have the numbers" or this information is contained in the ATIS
Pilots of arriving VFR aircraft should initiate radio contact when approximately 25 miles from the airport where sequencing services are being provided
The ATC instruction to follow the preceding aircraft does not authorize the pilot to comply with any ATC clearance or instruction issued to the preceding aircraft
If the pilot does not want radar service he should state "Negative Radar Service"
Radar Service Responsibilities:
Radar Service Pilot Responsibilities:
These services do not relieve the pilot of their responsibilities to see and avoid other traffic operating in basic VFR weather conditions, to adjust their operations and flight path as necessary to preclude serious wake turbulence encounters, to maintain appropriate terrain and obstruction compliance with an assigned route, heading and/or altitude is likely to compromise pilot responsibility respecting terrain and obstruction clearance, vortex exposure, and weather minimums
Approach control should so be advised and a revised clearance or instruction obtained
FAA Radar Services Limitations:
FAA radar services are provided on an as able basis to VFR aircraft
Private Pilot (Airplane) Communications, Light Signals, and Runway Lighting Systems Airman Certification Standards:
.
Objective: To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with normal and emergency radio communications, air traffic control (ATC) light signals, and runway lighting systems
Maintain the selected altitude ±200 feet and heading ±15°.
Private Pilot (Airplane) Radio Communications, Navigation Systems/Facilities, and Radar Services Airman Certification Standards:
Objective: To determine that the applicant exhibits satisfactory knowledge, risk management, and skills associated with radio communications, navigation systems/facilities, and radar services available for use during flight solely by reference to instruments
Private Pilot (Airplane) Radio Communications, Navigation Systems/Facilities, and Radar Services Knowledge:
The applicant demonstrates understanding of:
PA.VIII.F.K1:
Operating communications equipment to include identifying and selecting radio frequencies, requesting and following air traffic control (ATC) instructions.
PA.VIII.F.K2:
Operating navigation equipment to include functions and displays, and following bearings, radials, or courses.
PA.VIII.F.K3:
Air traffic control facilities and services.
Private Pilot (Airplane) Radio Communications, Navigation Systems/Facilities, and Radar Services Risk Management:
The applicant is able to identify, assess, and mitigate risk associated with:
PA.VIII.F.R1:
When to seek assistance or declare an emergency in a deteriorating situation.
PA.VIII.F.R2:
Using available resources (e.g., automation, ATC, and flight deck planning aids).
Private Pilot (Airplane) Radio Communications, Navigation Systems/Facilities, and Radar Services Skills:
The applicant exhibits the skill to:
PA.VIII.F.S1:
Maintain airplane control while selecting proper communications frequencies, identifying the appropriate facility, and managing navigation equipment.
Note that VFR flight following does not come with filing or opening a VFR flight plan, and neither does VFR flight following need to connect to a flight plan
If filing a flight plan, however, consider adding a note saying "request flight following" to notify ATC ahead of time of your intent
Request flight following even when you don't think you need or, or perhaps even when you don't have a destination
You never know when you'll need to talk to someone in a hurry, such as declaring an emergency
Even with increased awareness provided in the cockpit from tools like ADS-B, ATC is capable of providing a greater picture, plus services, making the service of continued value
Flight following never relieves the pilot of the responsibility to see and avoid
Although a contract service under the purview of the Federal Aviation Administration, Automated Flight Service Stations exist as reach back for routine services such as weather and filing flight plans
