{"id":"F2006B09949","name":"AD/FK-P/4 - Starter Gear/Damper Assembly P/No 18708 - Inspection","slug":"ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55206,"registerId":"commonwealth-F2006B09949-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/FK-P/4 - Starter Gear/Damper Assembly P/No 18708 - 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 - 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/4 Starter Gear/Damper Assembly NK\n\nP/No 18708 - Inspection\n\n \n\nApplicability: Model 6A-350-C1 and C2 with S/Nos as listed in the Requirement Document. Requirement:               Franklin SB No 112.\n\nCompliance: Within 100 hours time in service after 31 August 1972 and thereafter at intervals not exceeding 100 hours time in service.\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":1920},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"Narrow technical safety directive targeting a specific aircraft engine component; scope remains strictly limited to the original airworthiness safety purpose"},"complexity_factors":["Single specific part number targeted (P/No 18708)","Limited applicability to two specific engine models only","Linear compliance schedule with fixed intervals and no exceptions","No nested definitions or cross-references to other legislative provisions"],"plain_english_summary":"**What this does:** This Airworthiness Directive (AD) is a mandatory safety instruction requiring regular inspections of a specific starter motor component on certain aircraft engines.\n\n**Who it affects:** Owners and operators of Franklin 6A-350-C1 and C2 piston engines with specific serial numbers (as detailed in the associated requirement document).\n\n**What must be done:** Inspect the Starter Gear/Damper Assembly (part number 18708) following the procedures in Franklin Service Bulletin No. 112.\n\n**When:** Complete the first inspection within 100 hours of flight time after 31 August 1972, then repeat the inspection every 100 hours of flight time.\n\n**Why it matters:** This prevents potential failures in the engine starting system that could lead to operational hazards or ground accidents."}},"importantCases":[],"_links":{"self":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection","history":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection/history","analysis":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection/analysis","conflicts":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection/conflicts","importantCases":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection/important-cases","documents":"/api/acts/ad-fk-p-4-starter-gear-damper-assembly-p-no-18708-inspection/documents"}}