{"id":"F2006B05737","name":"AD/PA-31/32 - Electrical Power Indicators - Modification","slug":"ad-pa-31-32-electrical-power-indicators-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135551,"registerId":"commonwealth-F2006B05737-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/32 - Electrical Power Indicators - Modification","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)  Piper PA-31 Series Aeroplanes\n\n \n\nAD/PA-31/32 Electrical Power Indicators - Modification 8/74\n\nApplicability: All models.\n\n \n\nRequirement:  Install an ammeter in each generator feeder line so that the flight crew are provided with means to continually monitor the current essential for the safe operation of the system.\n\n \n\nNote: An ammeter that can be switched into the battery line and each generator feeder line may be used provided that the switch can be selected to a generator feeder line throughout the flight.\n\n \n\nCompliance: Within 200 hours time in service after 30 August 1974.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1426},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive remains tightly focused on its original purpose: ensuring flight crews can monitor electrical generator output on PA-31 aircraft. There is no evidence of scope expansion beyond this specific safety modification."},"complexity_factors":["Single, unambiguous technical requirement with no nested conditions","No defined terms section or cross-references to other legislative provisions","Only one brief alternative provision (the Note regarding switchable ammeters)","Simple compliance calculation (fixed flight hours after specific date)"],"plain_english_summary":"This is a safety rule for **Piper PA-31 series aircraft** (twin-engine planes popular for charter and freight work). It mandates a specific electrical system upgrade.\n\n**What it requires:**\n*   Aircraft owners must install an **ammeter** (a gauge that measures electrical current flow) in each generator feeder line\n*   This gives pilots continuous visibility of whether the electrical generators are working properly during flight\n\n**Alternative option:**\n*   Instead of separate ammeters for each line, a single switchable ammeter is allowed—but only if the pilot can keep it switched to monitor the generator lines for the entire flight (not just the battery)\n\n**Who it affects:**\nAll models of the Piper PA-31 series.\n\n**When compliance was required:**\nWithin 200 hours of flying time after 30 August 1974."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification","history":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification/history","analysis":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification/analysis","conflicts":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification/conflicts","importantCases":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification/important-cases","documents":"/api/acts/ad-pa-31-32-electrical-power-indicators-modification/documents"}}