{"as_of":"2026-10-09","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Where","items":[{"count":null,"name":"El Cajon, CA","note":"the town on the certificate","unit":"","url":""},{"count":27552,"name":"California","note":"","unit":"aircraft registered","url":"https://eflight.com/states/CA"},{"count":195,"name":"Aircraft registered in El Cajon","note":"","unit":"registered","url":"https://eflight.com/aircraft?city=El Cajon&state=CA"}],"relation":"works in"},{"group":"Certificate","items":[{"count":null,"name":"FAA repair station certificate (Part 145)","note":"CB3R417L","unit":"","url":""}],"relation":"holds"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"certificate":"CB3R417L","city":"El Cajon","country":"United States","id":"instrument-overhaul-service-of-san-diego-inc","name":"Instrument Overhaul Service of San Diego INC","state":"CA","type":"repair-station","url":"https://eflight.com/repair-stations/instrument-overhaul-service-of-san-diego-inc"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}