{"as_of":"2026-10-09","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Where","items":[{"count":null,"name":"Ozark, AL","note":"the town on the certificate","unit":"","url":""},{"count":null,"name":"Ozark/Blackwell Field","note":"71J","unit":"","url":"https://eflight.com/airports/71J"},{"count":4322,"name":"Alabama","note":"","unit":"aircraft registered","url":"https://eflight.com/states/AL"},{"count":39,"name":"Aircraft registered in Ozark","note":"","unit":"registered","url":"https://eflight.com/aircraft?city=Ozark&state=AL"}],"relation":"works in"},{"group":"Certificate","items":[{"count":null,"name":"FAA repair station certificate (Part 145)","note":"IO4R265M","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":"IO4R265M","city":"Ozark","country":"United States","id":"waltham-aircraft-clock-corp","name":"Waltham Aircraft Clock CORP","state":"AL","type":"repair-station","url":"https://eflight.com/repair-stations/waltham-aircraft-clock-corp"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}