{"id":"F2006B09950","name":"AD/FK-P/5 - Engine/Propeller Oil Transfer Plug - Replacement","slug":"ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55212,"registerId":"commonwealth-F2006B09950-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/FK-P/5 - Engine/Propeller Oil Transfer Plug - Replacement","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)  Franklin Piston Engines\n\n \n\nAD/FK-P/5 Engine/Propeller Oil Transfer Plug - Replacement NK\n\nApplicability: All models 6A-350-C1, -C2, 6A-335-B, -B1, -B1A, 6AS-250-A and -A1, except engines equipped with oil transfer plug part number 21685 identified by a letter “A” stamped on the face of the plug.\n\n \n\nRequirement: Franklin SB No 117.\n\n \n\nCompliance: At next propeller removal or at next engine reconditioning, whichever occurs first.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1811},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains precisely scoped to the specific maintenance issue regarding oil transfer plugs in specified Franklin engine models. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["References external technical document (Franklin Service Bulletin No 117) without reproducing its contents","Requires physical inspection of part stamping ('A' on plug face) to determine exemption status","Single compliance trigger with two alternative events (propeller removal vs engine reconditioning)"],"plain_english_summary":"This AD requires owners/operators of specified Franklin piston engines (6A-350-C1/C2, 6A-335-B/B1/B1A, 6AS-250-A/A1) to replace a particular oil transfer plug per Franklin Service Bulletin No. 117 at the next propeller removal or engine reconditioning. Engines already fitted with plug P/N 21685 (stamped “A”) are exempt. The action prevents possible engine failure and preserves airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement","history":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement/history","analysis":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement/analysis","conflicts":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement/conflicts","importantCases":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement/important-cases","documents":"/api/acts/ad-fk-p-5-engine-propeller-oil-transfer-plug-replacement/documents"}}