{"id":"F2006B04199","name":"AD/BEECH 77/9 - Nose Landing Gear Axle","slug":"ad-beech-77-9-nose-landing-gear-axle","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43955,"registerId":"commonwealth-F2006B04199-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 77/9 - Nose Landing Gear Axle","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)  Beechcraft 77 (Skipper) Series Aeroplanes\n\n \n\nAD/BEECH 77/9 Nose Landing Gear Axle 9/82\n\nApplicability: All model 77 with S/Nos. WA-1 to WA-312. Requirement:  Action in accordance with Beechcraft SI No. 1217. Compliance:               Within 100 hours’ time in service after 30 September 1982.\n\nBackground: Manufacturers mandatory modification to improve axle integrity.\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":2209},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope targeting a specific mechanical defect in a defined subset of Beechcraft 77 aircraft."},"complexity_factors":["Extremely brief content (under 100 words)","Single external technical reference (Beechcraft SI No. 1217)","Narrow applicability limited to specific aircraft model and serial number range","Simple compliance deadline with no exceptions or conditional logic"],"plain_english_summary":"**What this is:** An Airworthiness Directive — a legally binding safety order issued by the Civil Aviation Safety Authority under Commonwealth aviation law.\n\n**Who it affects:** Owners and operators of Beechcraft Model 77 \"Skipper\" aircraft with serial numbers WA-1 through WA-312.\n\n**What you must do:** Carry out the inspection or modification procedures specified in Beechcraft Service Instruction No. 1217 on the nose landing gear axle. This involves implementing a mandatory manufacturer modification to improve the structural integrity of the axle.\n\n**When:** The work must be completed within 100 hours of flight time after 30 September 1982.\n\n**Why it matters:** This directive addresses a known safety defect with the nose landing gear axle that could compromise aircraft safety if left uncorrected."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-77-9-nose-landing-gear-axle","history":"/api/acts/ad-beech-77-9-nose-landing-gear-axle/history","analysis":"/api/acts/ad-beech-77-9-nose-landing-gear-axle/analysis","conflicts":"/api/acts/ad-beech-77-9-nose-landing-gear-axle/conflicts","importantCases":"/api/acts/ad-beech-77-9-nose-landing-gear-axle/important-cases","documents":"/api/acts/ad-beech-77-9-nose-landing-gear-axle/documents"}}