{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":276,"name":"Piper PA-16 Clipper","note":"","unit":"registered","url":"https://eflight.com/models/piper/pa-16#airworthiness"},{"count":323,"name":"Piper PA-20 Pacer","note":"","unit":"registered","url":"https://eflight.com/models/piper/pa-20#airworthiness"},{"count":2943,"name":"Piper PA-22 Tri-Pacer and Colt","note":"","unit":"registered","url":"https://eflight.com/models/piper/pa-22#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Electrical power","note":"","unit":"","url":"https://eflight.com/systems/electrical"}],"relation":"about"},{"group":"More","items":[{"count":null,"name":"Every FAA order","note":"","unit":"","url":"https://eflight.com/directives"},{"count":null,"name":"Every aircraft system","note":"","unit":"","url":"https://eflight.com/systems"}],"relation":"see also"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"effective":"","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/7A39AC53B65D8EFC8625698B00764381.0001","id":"51-23-03","kind":"AD","name":"Airworthiness directive 51-23-03","published":"1956-12-04","subject":"Battery Box Insulation","system":"electrical","type":"directive","url":"https://eflight.com/directives/51-23-03"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}