{"id":"F2006B10282","name":"AD/GENERAL/51 - Electrical External Power Connection - Inspection","slug":"ad-general-51-electrical-external-power-connection-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55971,"registerId":"commonwealth-F2006B10282-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GENERAL/51 - Electrical External Power Connection - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Aircraft - General\n\n \n\nAD/GENERAL/51 Electrical External Power Connection - Inspection\n\n\n11/75\n\n \n\nApplicability: All aircraft with a maximum take-off weight of 5700 kg and below fitted with electrical external power provision.\n\n \n\nRequirement: 1. Inspect the external power system to ensure that an external power supply with reversed polarity or phase sequence cannot be connected to the electrical system of the aircraft.\n\n \n\n2. Modify or disconnect any external power system which does not comply with para. 1.\n\n \n\nCompliance: Within 100 hours time in service after 28 November 1975.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2579},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This airworthiness directive maintains its original narrow scope concerning electrical safety for external power connections on small aircraft. There is no indication of expansion beyond the initial 1975 safety inspection requirement."},"complexity_factors":["Single-page document with no interpretation section or defined terms","Only two operative requirements with no nested sub-paragraphs or exceptions","No cross-references to other legislative instruments","Straightforward technical instruction without conditional logic or carve-outs"],"plain_english_summary":"This Airworthiness Directive requires a one-time inspection of external ground‑power sockets on aircraft with MTOW ≤5,700 kg to confirm they cannot accept reversed polarity or incorrect phase sequencing. Owners/operators must either retrofit polarity/phase protection or permanently disable the external power provision if it fails.\n\nIt addresses risks of equipment damage, fire, or injury from incorrect ground connections and carried a compliance deadline of 100 flight hours after 28 November 1975."}},"importantCases":[],"_links":{"self":"/api/acts/ad-general-51-electrical-external-power-connection-inspection","history":"/api/acts/ad-general-51-electrical-external-power-connection-inspection/history","analysis":"/api/acts/ad-general-51-electrical-external-power-connection-inspection/analysis","conflicts":"/api/acts/ad-general-51-electrical-external-power-connection-inspection/conflicts","importantCases":"/api/acts/ad-general-51-electrical-external-power-connection-inspection/important-cases","documents":"/api/acts/ad-general-51-electrical-external-power-connection-inspection/documents"}}