{"as_of":"2026-10-09","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Where","items":[{"count":null,"name":"Ball Ground, GA","note":"the town on the certificate","unit":"","url":""},{"count":8793,"name":"Georgia","note":"","unit":"aircraft registered","url":"https://eflight.com/states/GA"},{"count":27,"name":"Aircraft registered in Ball Ground","note":"","unit":"registered","url":"https://eflight.com/aircraft?city=Ball Ground&state=GA"}],"relation":"works in"},{"group":"Certificate","items":[{"count":null,"name":"FAA repair station certificate (Part 145)","note":"Z9HR127B","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":"Z9HR127B","city":"Ball Ground","country":"United States","id":"hammerhead-aeronautical-llc","name":"Hammerhead Aeronautical LLC","state":"GA","type":"repair-station","url":"https://eflight.com/repair-stations/hammerhead-aeronautical-llc"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}