{"id":"F2006B05153","name":"AD/CESSNA 188/18 - Main Landing Gear Leg Attachment Bolts","slug":"ad-cessna-188-18-main-landing-gear-leg-attachment-bolts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45249,"registerId":"commonwealth-F2006B05153-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 188/18 - Main Landing Gear Leg Attachment Bolts","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)  Cessna 188 (Agwagon) Series Aeroplanes\n\n \n\nAD/CESSNA 188/18 Main Landing Gear Leg Attachment Bolts 11/72\n\nApplicability: All models.\n\n \n\nRequirement: Inspect the inboard main landing gear to fuselage attachment bolts to ensure they are of NAS 152-88 type and are torqued to the correct value.\n\n \n\nCompliance: Within 100 hours time in service after 30 November 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":1474},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope targeting a specific safety defect in Cessna 188 landing gear attachment bolts. It has not expanded beyond the original mechanical inspection requirement."},"complexity_factors":["Single, specific inspection requirement with no conditional logic","No interpretation section or defined terms","No cross-references to other legislative instruments","Simple compliance schedule (100-hour intervals)","Only one technical standard referenced (NAS 152-88 bolt specification)"],"plain_english_summary":"This Airworthiness Directive (safety rule) applies to all **Cessna 188 (Agwagon)** agricultural aircraft.\n\n**What you must do:**\nInspect the bolts that attach the main landing gear (wheels) to the fuselage (aircraft body). Specifically:\n- Check that the bolts are the correct type: **NAS 152-88**\n- Check that they are tightened to the correct torque (tightness) value\n\n**When you must do it:**\n- First inspection: Within 100 hours of flight time after 30 November 1972\n- Repeat inspection: Every 100 hours of flight time thereafter\n\n**Why this matters:**\nThis directive prevents the landing gear from failing or collapsing due to incorrect bolts or loose fittings, which could cause accidents during takeoff, landing, or ground operations."},"summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument is a long-standing airworthiness directive that mandates a recurring inspection of landing gear attachment bolts on Cessna 188 series aircraft."},"complexity_factors":["Single clear inspection task","Specified bolt type and torque value","Fixed recurring compliance interval","No exceptions or alternative methods of compliance"],"plain_english_summary":"This AD applies to all Cessna 188 (Agwagon) aircraft on the Australian register and mandates recurring inspections of the inboard main landing gear leg attachment bolts to confirm they are NAS 152-88 bolts and torqued correctly. \n\nThe first check is within 100 hours TIS after 30 Nov 1972 and then every 100 hours for the aircraft's life; it’s a mandatory continuing-airworthiness measure to prevent landing gear failure and must be recorded in the aircraft logbook."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts","history":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts/history","analysis":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts/analysis","conflicts":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts/conflicts","importantCases":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts/important-cases","documents":"/api/acts/ad-cessna-188-18-main-landing-gear-leg-attachment-bolts/documents"}}