{"id":"S87000917","label":"Holding patterns (Aeronautics)","description":"Here are entered works on the maneuvers that keep an aircraft within a racetrack-shaped flight pattern anchored at one end to a holding fix while awaiting further clearance from air traffic control.","source_url":"https://id.loc.gov/authorities/subjects/sh87000917","normalized_label":"holding patterns (aeronautics)","broader":["http://id.loc.gov/authorities/subjects/sh85002876"],"aliases":["Aircraft holding patterns","Patterns, Holding (Aeronautics)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh87000917","provider":"lcsh","revision":"9cc676302b283a30","taxonomy_revision":"f050b5d4780b1289","title":"Holding patterns (Aeronautics)","url":"/topics/S87000917","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5209622706722850308","address_version":"morton4x16-v1","coordinates":[0,20,48669,21504],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}