{"id":"F2006B02268","name":"AD/AL 250/56 Amdt 1 - Engine Quick Disconnect Magnetic Plugs - Inspection of Lockpins and Slots for Wear","slug":"ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41498,"registerId":"commonwealth-F2006B02268-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AL 250/56 Amdt 1 - Engine Quick Disconnect Magnetic Plugs - Inspection of Lockpins and Slots for Wear","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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Allison Turbine Engines - 250 Series\n\n \n\nAD/AL 250/56\n\nAmdt 1\n\n\nEngine Quick Disconnect Magnetic Plugs - Inspection of Lockpins and Slots for Wear\n\n\n7/85\n\n \n\nApplicability: Allison 250 Series engines fitted with quick disconnect magnetic plugs.\n\n \n\nRequirement: Allison 250-C18\n\n \n\nAllison 250-C20, C20B, C20F, C20J\n\n \n\nAllison 250-B15GTP\n\n \n\nAllison 250-B17, B17B, B17CTP Allison 250-C28B, C28C\n\n\nCEB-A-233 Rev.1 CEB-A-1211 Rev.1 CEB-A-103 Rev.1 CEB-A-11172 Rev.1 CEB-A-72-2092 Rev.1\n\nCompliance: In accordance with the Requirement Document.\n\n \n\nBackground: This Directive is amended to reflect Revision 1 of the manufacturers document which requires an operational check on magnetic plugs to ensure proper function.\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":1602},"content_quality":"ok","complexity_score":3,"rejection_reason":"","scope_assessment":{"changed":true,"description":"The amendment expands the original directive to add a new 'operational check' requirement for magnetic plugs to ensure proper function, going beyond the original scope which only required inspection of lockpins and slots for physical wear."},"complexity_factors":["Requires reference to external manufacturer documents (CEB bulletins) rather than containing complete instructions within the directive itself","Lists nine specific engine model variants with different compliance documents","Uses technical aviation terminology (e.g., 'quick disconnect magnetic plugs', 'CEB bulletins') without glossary definitions"],"plain_english_summary":"This rule requires owners/operators of helicopters with Allison 250-series engines fitted with quick-disconnect magnetic oil plugs to inspect plug lockpins and slots and to perform an operational check to verify the plugs are functioning.\n\nCompliance follows the manufacturer's Commercial Engine Bulletins. The requirement preserves the magnetic-plug early-warning function so metal debris is detected before it can cause undetected engine damage or catastrophic in-flight engine failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear","history":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear/history","analysis":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear/analysis","conflicts":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear/conflicts","importantCases":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear/important-cases","documents":"/api/acts/ad-al-250-56-amdt-1-engine-quick-disconnect-magnetic-plugs-inspection-of-lockpins-and-slots-for-wear/documents"}}