{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.cessna-citation-sovereign","code":"thing-q848809","url":"https://ver.cy/models/thing/q848809/","name":"Cessna Citation Sovereign","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The Cessna Citation Sovereign is a family of Model 680 twin-engine, swept-wing business jets with a pressurized cabin, developed by Cessna for medium- to long-range executive transport.","purpose":"Enable an AI agent to recognise a Cessna Citation Sovereign, interpret configuration-specific evidence about its condition and capability, and identify the prerequisites for a proposed use.","scope":{"in":["Sovereign identity, certified model designation and variant applicability","Airframe, propulsion, avionics and approved modification configurations","Configuration-dependent payload, fuel, runway and flight-envelope constraints","Aircraft-system states and evidence needed to assess operational readiness","Continuing-airworthiness requirements and applicable technical records"],"out":["The complete Cessna Citation product family","Separate publication of Sovereign+ without a resolved registry boundary","Individual aircraft ownership, registration history and transaction records","Standalone engine and avionics product models beyond their aircraft interfaces","Flight execution, pilot qualification and operator certification as independent activities","Airport infrastructure, airspace management and charter-service business models"],"boundaries":[]},"distinguishingFeatures":["Match the documented aircraft identity to Cessna Model 680 and its Sovereign variant; a Citation trade name alone is insufficient. [EASA type-certificate record](https://www.easa.europa.eu/en/document-library/type-certificates/aircraft-cs-25-cs-22-cs-23-cs-vla-cs-lsa/easaima033-cessna-680)","Treat Model 680 identification as necessary but insufficient to separate Sovereign from Sovereign+, because the type documentation identifies both variants. [EASA type-certificate data sheet](https://www.easa.europa.eu/en/downloads/7459/en)","Check documented engine installation against the original Sovereign's PW306C identification, while investigating approved replacements or modifications before rejecting a match. [EASA aircraft noise and performance database](https://www.easa.europa.eu/en/downloads/138156/en)","Use the pressurized, low-wing monoplane configuration as a supporting physical recognition test, then confirm identity through records rather than appearance alone. [EASA type-certificate data sheet](https://www.easa.europa.eu/en/downloads/7459/en)"],"structure":{"bundles":[{"id":"sovereign-identity-and-effectivity","name":"Sovereign identity and effectivity","description":"Establishes which aircraft and technical configurations this registry entry represents.","layers":[{"id":"registry-and-certified-identity","name":"Registry and certified identity","description":"Connects the registry label to documented aircraft identity.","findings":[{"id":"sovereign-membership-test","name":"Sovereign membership test","description":"Require agreement between the aircraft's certified identity, serial number and documented commercial variant.","questions":[{"text":"Which manufacturer and certification records establish that an aircraft belongs to the Citation Sovereign entry?","id":"sovereign-membership-test-q01","kind":"definition"},{"text":"Does this registry entry include Sovereign+, or should it relate to a separately registered variant?","id":"sovereign-membership-test-q02","kind":"boundary"}]}]},{"id":"serial-and-modification-effectivity","name":"Serial and modification effectivity","description":"Determines which baseline and supplemental technical data apply.","findings":[{"id":"configuration-evidence-chain","name":"Configuration evidence chain","description":"Bind each capability or limit to the applicable serial range, installed equipment and approved changes.","questions":[{"text":"Which serial-number effectivities and modification records select the applicable Sovereign flight manual and supplements?","id":"configuration-evidence-chain-q01","kind":"provenance"},{"text":"Which conflicting configuration claims must be resolved before the agent can use a performance or equipment statement?","id":"configuration-evidence-chain-q02","kind":"action"}]}]}]},{"id":"propulsion-and-system-configuration","name":"Propulsion and system configuration","description":"Captures the installations and dependencies that turn Sovereign configuration into usable capability.","layers":[{"id":"engine-and-energy-installation","name":"Engine and energy installation","description":"Covers engine identity, fuel compatibility and supporting power interfaces.","findings":[{"id":"installed-propulsion-baseline","name":"Installed propulsion baseline","description":"Record the approved propulsion installation and its dependencies without extrapolating across PW306 configurations.","questions":[{"text":"Which engine designation, thrust rating and control configuration are approved for the assessed Sovereign configuration?","id":"installed-propulsion-baseline-q01","kind":"provenance"},{"text":"What fuel specifications, usable quantities and ground or auxiliary power requirements apply to that installation?","id":"installed-propulsion-baseline-q02","kind":"measurement"}]}]},{"id":"avionics-and-guidance","name":"Avionics and guidance","description":"Separates installed cockpit functions from capabilities established by approvals and equipment status.","findings":[{"id":"navigation-capability-evidence","name":"Navigation capability evidence","description":"Determine available navigation and flight-guidance functions from the actual installation and applicable approvals.","questions":[{"text":"Which avionics suite, software standard and supplements establish this Sovereign's navigation and flight-guidance capabilities?","id":"navigation-capability-evidence-q01","kind":"provenance"},{"text":"Which proposed approach or airspace operation requires additional equipment, database currency or operator approval evidence?","id":"navigation-capability-evidence-q02","kind":"action"}]}]}]},{"id":"loading-and-mission-envelope","name":"Loading and mission envelope","description":"Relates cabin use, baggage and fuel loading to conditional flight and runway performance.","layers":[{"id":"occupancy-and-mass-balance","name":"Occupancy and mass balance","description":"Connects the approved interior to passenger, baggage and fuel constraints.","findings":[{"id":"loadable-cabin-configuration","name":"Loadable cabin configuration","description":"Establish usable seating and baggage capacity within the applicable mass and balance envelope.","questions":[{"text":"What approved seating layout, baggage limits and current empty-mass data define the assessed Sovereign's loading baseline?","id":"loadable-cabin-configuration-q01","kind":"provenance"},{"text":"Where does the proposed passenger, baggage and fuel load fall within ramp, takeoff, landing and centre-of-gravity limits?","id":"loadable-cabin-configuration-q02","kind":"measurement"}]}]},{"id":"conditional-flight-performance","name":"Conditional flight performance","description":"Records the assumptions required to assess runway use, range and operating envelope.","findings":[{"id":"mission-feasibility-inputs","name":"Mission feasibility inputs","description":"Keep published capability, approved limitations and mission-specific calculations distinguishable.","questions":[{"text":"Which applicable performance data support the proposed runway, elevation, temperature, wind, surface condition and aircraft mass?","id":"mission-feasibility-inputs-q01","kind":"measurement"},{"text":"What fuel reserves, route assumptions and equipment penalties must be included before judging the proposed mission feasible?","id":"mission-feasibility-inputs-q02","kind":"action"}]}]}]},{"id":"system-state-and-operational-constraints","name":"System state and operational constraints","description":"Interprets condition evidence from aircraft systems and connects restrictions to proposed use.","layers":[{"id":"flight-critical-condition","name":"Flight-critical condition","description":"Covers configuration-specific evidence for pressurization, ice protection, flight controls and landing systems.","findings":[{"id":"condition-to-restriction-assessment","name":"Condition-to-restriction assessment","description":"Associate discrepancies and indications with the applicable Sovereign technical guidance and resulting restrictions.","questions":[{"text":"Which records and indications establish the assessed aircraft's pressurization, ice-protection, flight-control, landing-gear and braking condition?","id":"condition-to-restriction-assessment-q01","kind":"provenance"},{"text":"Which approved limitations or procedures govern a proposed use when one of those systems has a discrepancy?","id":"condition-to-restriction-assessment-q02","kind":"action"}]}]},{"id":"ground-compatibility-and-safeguards","name":"Ground compatibility and safeguards","description":"Relates aircraft dimensions and servicing interfaces to ground activities.","findings":[{"id":"ground-operation-prerequisites","name":"Ground-operation prerequisites","description":"Identify the clearances, equipment compatibility and protective conditions required by applicable Sovereign documentation.","questions":[{"text":"What verified dimensions, access clearances and towing or jacking limits apply to this Sovereign configuration?","id":"ground-operation-prerequisites-q01","kind":"measurement"},{"text":"Which approved power, refuelling and servicing requirements, including interlocks or protective checks, govern the proposed ground activity?","id":"ground-operation-prerequisites-q02","kind":"action"}]}]}]},{"id":"certification-and-continuing-airworthiness","name":"Certification and continuing airworthiness","description":"Connects Sovereign technical requirements to evidence of compliance and maintenance status.","layers":[{"id":"approval-basis-and-mandatory-actions","name":"Approval basis and mandatory actions","description":"Identifies governing authorities, certification documents and applicable mandatory requirements.","findings":[{"id":"applicable-approval-record","name":"Applicable approval record","description":"Track issuing authority, document revision and configuration effectivity when interpreting certification or compliance claims.","questions":[{"text":"Which FAA or EASA type-certificate provisions, certification standards and approved supplements govern the assessed Sovereign configuration?","id":"applicable-approval-record-q01","kind":"provenance"},{"text":"Which airworthiness directives apply by aircraft, engine or installed-component effectivity, and what evidence establishes their status?","id":"applicable-approval-record-q02","kind":"provenance"}]}]},{"id":"maintenance-and-release-evidence","name":"Maintenance and release evidence","description":"Determines what condition and service-history evidence is needed before relying on the aircraft's capabilities.","findings":[{"id":"remaining-serviceability-obligations","name":"Remaining serviceability obligations","description":"Relate hours, cycles, calendar limits and unresolved discrepancies to required maintenance or authorized review.","questions":[{"text":"Which inspection intervals, life limits and consumable requirements apply under the aircraft's approved maintenance programme?","id":"remaining-serviceability-obligations-q01","kind":"measurement"},{"text":"What overdue tasks, unresolved defects or missing release records require authorized assessment before the proposed use?","id":"remaining-serviceability-obligations-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these standards and regulation hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of Cessna Citation Sovereign this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Read an aircraft's registration and check it against the civil aircraft register.","Track maintenance and airworthiness status for the operator who authorised it.","Support flight planning within the operator's procedures."],"mustNot":["Clear an aircraft to fly when inspections or airworthiness directives are overdue.","Alter or fabricate maintenance or flight records.","Publish passengers' identities or travel patterns without consent or legal basis.","Operate engines or move the aircraft without an authorised, qualified person in control."],"requiresHuman":["Any go or no-go decision for a flight.","Returning the aircraft to service after maintenance."]},"ethics":{"considerations":["Business jet movements can reveal private and commercially sensitive information about passengers."],"affectedParties":["Passengers","Crews","People on the ground"]},"owners":{"steward":"The registered owner and operator; the civil aviation authority keeps type and registration records.","roles":[],"masterSystems":["National civil aircraft registers"]},"relations":[{"target":"Q11436","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.cessna-citation-sovereign","Wikidata: Q848809 (https://www.wikidata.org/wiki/Q848809)"]},"properties":{"applicability":"required","items":["Certified identity and variant: Certified model designation; Sovereign or Sovereign+ attribution; unresolved","Configuration applicability: Links to serial-number effectivity, equipment records, approved modifications and flight-manual supplements","Propulsion installation: Engine model and rating designation; installation approval; control-system configuration","Avionics and flight-guidance configuration: Installed suite, software standard, navigation equipment and approved capabilities","Mass and centre-of-gravity envelope: kg or lb; centre of gravity in approved datum units or percent mean aerodynamic chord","Fuel capacity and approved fuel: Usable fuel in kg or lb and L or US gal, with density assumptions and approved fuel specification","Conditional flight and field performance: Range in nmi; speed in kt or Mach; altitude in ft; runway distance in m or ft, each with configuration and environmental assumptions","External dimensions and ground clearances: Length, wingspan, height and relevant clearances in m or ft for the applicable configuration","Cabin and baggage configuration: Approved seating layout, occupancy, baggage locations and associated loading limits","Readiness evidence: Unknown; assessment incomplete; restriction identified; prerequisites evidenced"]},"recognition":{"applicability":"required","items":["A medium business jet with two engines mounted on the rear fuselage.","Moderately swept wings, a T-shaped tail and a row of oval cabin windows."]},"capabilities":{"applicability":"required","items":["Classify a documented aircraft against the Sovereign entry and flag unresolved variant identity.","Select technical statements and manuals applicable to its serial number and modification configuration.","Assess a proposed passenger, baggage and fuel load against documented loading constraints.","Compare a proposed mission with applicable performance data and identify missing calculation inputs.","Identify maintenance, equipment or approval evidence that must be resolved before a proposed use.","Check hangar, parking and servicing compatibility from verified dimensions and ground-support requirements."]},"hazards":{"applicability":"required","items":["Runway excursions and loss of control are leading accident types for business jets.","Cabin pressurisation failure at altitude endangers occupants."]},"interfaces":{"applicability":"required","items":["Airworthiness standards for transport category airplanes, 14 CFR Part 25, United States Federal Aviation Administration."]},"context":{"applicability":"required","items":["This twin-engine business jet is used for executive, corporate and charter passenger transport over medium to long distances.","It is encountered at airports serving business aviation, where its use depends on runway suitability, available support and the aircraft's approved operating limitations.","Its cabin supports small-group travel between cities, including journeys requiring fewer intermediate stops than smaller business aircraft."]}},"sources":[{"title":"Wikidata item Q848809: Cessna Citation Sovereign","url":"https://www.wikidata.org/wiki/Q848809","note":"identity and sense of the item"},{"title":"Wikipedia: Cessna Citation Sovereign","url":"https://en.wikipedia.org/wiki/Cessna_Citation_Sovereign","note":"general description of the item"}],"openQuestions":["Does the authoritative registry intend Citation Sovereign to include Sovereign+, and does an existing world model already cover either concept?","What exact serial-number and modification effectivities distinguish engine, avionics, wing and limitation configurations within the intended scope?","Which primary documents establish representative dimensions, usable fuel, payload, range and runway performance, with their conditions and units?","Which Sovereign-specific recurring discrepancies or failure modes are supported by manufacturer service information or authority findings?","Which current certification revisions, mandatory actions and maintenance requirements apply in the jurisdiction and configuration being assessed?"],"resources":{"spec":"/models/things/publications/thing-q848809/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q848809/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T08:32:51Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:33+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}