{"as_of":"2026-10-09","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Where","items":[{"count":null,"name":"Houston, TX","note":"the town on the certificate","unit":"","url":""},{"count":null,"name":"Conroe/North Houston Regional","note":"CXO","unit":"","url":"https://eflight.com/airports/CXO"},{"count":null,"name":"David Wayne Hooks Memorial","note":"DWH","unit":"","url":"https://eflight.com/airports/DWH"},{"count":null,"name":"Ellington Airport","note":"EFD","unit":"","url":"https://eflight.com/airports/EFD"},{"count":29860,"name":"Texas","note":"","unit":"aircraft registered","url":"https://eflight.com/states/TX"},{"count":1185,"name":"Aircraft registered in Houston","note":"","unit":"registered","url":"https://eflight.com/aircraft?city=Houston&state=TX"}],"relation":"works in"},{"group":"Certificate","items":[{"count":null,"name":"FAA repair station certificate (Part 145)","note":"ZTDR759E","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":"ZTDR759E","city":"Houston","country":"United States","id":"zulu-transponder-testing-llc","name":"Zulu Transponder Testing, LLC","state":"TX","type":"repair-station","url":"https://eflight.com/repair-stations/zulu-transponder-testing-llc"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}