{"as_of":"2026-10-08","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Flies","items":[{"count":2,"name":"Agusta Spa A109","note":"","unit":"on the certificate","url":"https://eflight.com/models/agusta-spa/a109"},{"count":2,"name":"Agusta Spa","note":"","unit":"on the certificate","url":"https://eflight.com/makers/agusta-spa"}],"relation":"flies"},{"group":"Where","items":[{"count":null,"name":"Hayward, CA","note":"where most of the aircraft on its certificate are registered","unit":"","url":""},{"count":null,"name":"Hayward Executive","note":"HWD","unit":"","url":"https://eflight.com/airports/HWD"},{"count":27551,"name":"California","note":"","unit":"aircraft registered","url":"https://eflight.com/states/CA"}],"relation":"based in"},{"group":"Certificates and records","items":[{"count":2,"name":"FAA charter and air-taxi certificate","note":"designator Y9BA","unit":"aircraft listed","url":""}],"relation":"holds"},{"group":"Aircraft","items":[{"count":null,"name":"N621SC","note":"Agusta Spa A109S","unit":"","url":"https://eflight.com/aircraft/N621SC"},{"count":null,"name":"N69KG","note":"Agusta Spa A109S","unit":"","url":"https://eflight.com/aircraft/N69KG"}],"relation":"lists on its certificate"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"aircraft_listed":2,"base_city":"Hayward","base_state":"CA","callsign":null,"certificate":"135","code":null,"designator":"Y9BA","dot_authority":null,"id":"south-bay-helicopter-services-inc","name":"South Bay Helicopter Services, Inc.","type":"operator","url":"https://eflight.com/operators/south-bay-helicopter-services-inc"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}