{"as_of":"2026-10-08","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Where","items":[{"count":null,"name":"Hamilton, MT","note":"the town on the certificate","unit":"","url":""},{"count":null,"name":"Ravalli County","note":"HRF","unit":"","url":"https://eflight.com/airports/HRF"},{"count":null,"name":"Rotorcraft Heliport","note":"M62","unit":"","url":"https://eflight.com/airports/M62"},{"count":6043,"name":"Montana","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MT"},{"count":114,"name":"Aircraft registered in Hamilton","note":"","unit":"registered","url":"https://eflight.com/aircraft?city=Hamilton&state=MT"}],"relation":"works in"},{"group":"Certificate","items":[{"count":null,"name":"FAA repair station certificate (Part 145)","note":"9F1R995C","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":"9F1R995C","city":"Hamilton","country":"United States","id":"a-tec-aircraft-maintenance-center","name":"A-Tec Aircraft Maintenance Center","state":"MT","type":"repair-station","url":"https://eflight.com/repair-stations/a-tec-aircraft-maintenance-center"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}