UA.I.B.K17: Operating in the vicinity of airports.

ACS Area I — Regulations Task B: Operating Rules References: 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. parts 47, 48, 89, and 107, subpart B; ACAdvisory CircularCloseFAA guidance that explains acceptable ways to comply with rules or understand FAA procedures. 107-2; FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.-H-8083-25; FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.-G-8082-22

Key Concepts

TRSAs and Airport Vicinity Airspace

• Terminal Radar Service Areas (TRSAsTerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots.) are legacy terminal radar areas around selected airports. They are not a class of controlled airspace and are not contained in 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 71. Instead, they remain non–Part 71 airspace where pilots who choose to participate can receive additional radar services (“TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. Service”). For test purposes, know that TRSAsTerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. do not fit into any U.S. airspace class and that participation by VFRVisual Flight RulesCloseRules for flight using visual reference and minimum weather conditions. pilots is voluntary. The practical takeaway when operating near a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. is heightened situational awareness: expect dense traffic and structured radar services even though no specific operating rules in Part 91 apply to the TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. itself^[1].
• Within a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots., the primary airport’s surface area becomes Class D airspace. The rest of the TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. overlies other controlled airspace that is normally Class E beginning at 700 or 1,200 feet. This means charted Class D rules apply at the primary airport surface area, while surrounding segments are Class E starting at those published floors. For a remote pilot, this underscores the need to read the charted segments carefully—different portions of the same TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. can have different controlled airspace floors, which will affect airspace planning near airports^[1].
• Participation note: VFRVisual Flight RulesCloseRules for flight using visual reference and minimum weather conditions. pilots are encouraged (but not required) to contact the radar approach control to use TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. services. While part 107 does not require radio communication, expect higher traffic density and ATCAir Traffic ControlCloseThe system that manages controlled airspace, traffic flow, and aircraft separation services. radar services in these areas and plan operations to avoid conflicts near the airport traffic patterns encompassed by a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots.^[1].

Chart Identification and Key Symbology Near Airports

• TRSAsTerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. are depicted on VFRVisual Flight RulesCloseRules for flight using visual reference and minimum weather conditions. sectional and terminal area charts with a solid black line, with altitudes shown for each segment. The Class D portion at the primary airport is depicted with a blue segmented line. On the exam, if you’re asked to identify a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. or its depiction, look for the solid black boundary and segment altitudes, and remember that only the surface area at the primary airport is Class D (blue dashed line), not the entire TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots.^[1].
• Use official FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes. charting and reference materials when planning near airports:
  • Aeronautical Information Manual (AIMAeronautical Information ManualCloseFAA operational guidance and glossary material used to understand aviation procedures and terminology.) and Aeronautical Charts (Digital) are available from FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes. sources and are key references for airspace depictions around airports, including TRSAsTerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. and Class D surface areas designated under 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 71^[4].
  • Review applicable CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. parts listed for sUASSmall Unmanned Aircraft SystemCloseA small drone plus the control and communication links used to operate it. operations and airspace structure: 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 71 (airspace designations), Part 73 (special use airspace), Part 93 (special air traffic rules), Part 91 (general operating rules), and Part 107 (small UASSmall Unmanned Aircraft SystemCloseA small drone plus the control and communication links used to operate it.). These references frame the airspace and procedural environment you’ll encounter around airports^[3].

Special Flight Rules Near Some Airports (SATR/SFRA)

• Special Air Traffic Rules Areas (SATRSpecial Air Traffic RulesCloseArea-specific air traffic rules published for unique or complex airspace.) and Special Flight Rules Areas (SFRASpecial Flight Rules AreaCloseA defined area with special flight procedures or restrictions.) are designated airspace areas where the CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. prescribes special operating rules. These areas are listed in 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 93 and can be found throughout the NASNational Airspace SystemCloseThe shared U.S. airspace system that drones must operate within.. Airport environments that fall within an SFRASpecial Flight Rules AreaCloseA defined area with special flight procedures or restrictions. or SATRSpecial Air Traffic RulesCloseArea-specific air traffic rules published for unique or complex airspace. carry additional, specific procedures. From an exam perspective, recognize that special rules may apply in certain terminal areas and that their details are codified in Part 93; always verify whether your intended operating area is subject to these special rules before flight^[2][3].
• Practical implications for a remote pilot:
  • Identify whether the airport vicinity includes a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots., a Class D surface area, or is within an SFRA/SATRSpecial Air Traffic Rules / Special Flight Rules AreaCloseA combined reference to special rules or areas with extra operating procedures.. The classification affects how traffic is organized and what additional procedures may exist.
  • Check NOTAMsNotice to Airmen / Notice to Air MissionsCloseOfficial notice about temporary conditions, hazards, or changes that can affect a flight. for temporary changes that can affect airport airspace or procedures. Official NOTAMNotice to Airmen / Notice to Air MissionsCloseOfficial notice about temporary conditions, hazards, or changes that can affect a flight. access is provided via the FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.’s PilotWeb, with additional planning resources available at 1800wxbrief.com^[3].

Key exam takeaways:

• TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. is not a class of airspace and is not in 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 71; it offers voluntary radar services to VFRVisual Flight RulesCloseRules for flight using visual reference and minimum weather conditions. pilots^[1].
• In a TRSATerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots., the primary airport is Class D; other segments are typically Class E beginning at 700 or 1,200 feet—read the charted floors for each segment^[1].
• TRSAsTerminal Radar Service AreaCloseAirspace around some busy airports where radar services are offered; participation is generally voluntary for VFR pilots. are charted with a solid black line and segment altitudes; the Class D portion is a blue segmented line^[1].
• Special rules areas around some airports (SATR/SFRASpecial Air Traffic Rules / Special Flight Rules AreaCloseA combined reference to special rules or areas with extra operating procedures.) are listed in 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. Part 93 and impose specific procedures—confirm before operating near those airports^[2][3].
• Use FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes. AIMAeronautical Information ManualCloseFAA operational guidance and glossary material used to understand aviation procedures and terminology., digital aeronautical charts, and official NOTAMNotice to Airmen / Notice to Air MissionsCloseOfficial notice about temporary conditions, hazards, or changes that can affect a flight. sources when planning any operation near airports^[3][4].