{"id":"F2006B07507","name":"AD/TSA-600/43 - Fuselage Horizontal Stabiliser Attachment Fittings","slug":"ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49994,"registerId":"commonwealth-F2006B07507-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TSA-600/43 - Fuselage Horizontal Stabiliser Attachment Fittings","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)  Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes\n\n \n\n# AD/TSA-600/43 Fuselage Horizontal Stabiliser\n\nAttachment Fittings\n\nApplicability: All models up to and including Airframe Number 0849.\n\n# 13/95 TX\n\n \n\nRequirement: Inspect the forward and aft fuselage horizontal stabiliser attachment fittings, P/N 210006-001 and 210007-001, in accordance with the instructions in Aerostar Service Bulletin SB600-130.\n\n \n\nNote: A copy of this Service Bulletin is held in the CASA District Offices.\n\n \n\nCompliance: Initially inspect before 5 hours time in service after 16 October 1995. Re-inspect at intervals not to exceed 1 year.\n\n \n\nReplace any fitting found cracked before further flight.\n\n \n\nNote: The compliance time of this directive differs from that given in Aerostar SB600-130.\n\n \n\nBackground: The Authority has received a report of a very large crack in the fuselage horizontal stabiliser attachment fitting. Failure of the fitting may be catastrophic.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific mechanical defect in a limited aircraft population. The scope remains precisely focused on the original safety concern without expansion into unrelated systems or aircraft types."},"complexity_factors":["Single, specific mechanical issue (cracked attachment fittings)","Only 2 part numbers affected","Clear applicability limit (airframe numbers up to 0849)","Simple compliance structure: initial inspection + annual recurrence","Single cross-reference to manufacturer service bulletin (SB600-130)","No nested exceptions or conditional logic","Approximately 150 words of substantive content","Straightforward consequence (replace if cracked, no flight until fixed)"],"plain_english_summary":"This CASA Airworthiness Directive mandates immediate and recurring inspections of the metal attachment fittings that secure the horizontal stabiliser on Aerostar 600/700 series aircraft (Piper/Ted Smith) up to airframe number 0849, using Aerostar Service Bulletin SB600-130. Initial inspection: within 5 flight hours after 16 Oct 1995; repeat at least annually; replace any cracked fitting before further flight.\n\nIt responds to a reported large crack and prevents catastrophic stabiliser separation; CASA’s deadlines are stricter than the manufacturer’s."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The AD implements mandatory inspection and replacement obligations for specified stabiliser attachment fittings on Aerostar 600/700 aircraft up to Airframe No. 0849 and sets an initial inspection deadline (within 5 hours TIS after 16 Oct 1995) and annual re‑inspection intervals. The AD explicitly notes that its compliance timing differs from Aerostar SB600‑130, so it changes the manufacturer's timing requirements (see Compliance; Note)."},"complexity_factors":["Precise parts identification required (forward and aft fittings P/N 210006-001 and 210007-001) (Requirement, Applicability).","Very short initial compliance window: inspect before 5 hours time in service after 16 October 1995 (Compliance).","Recurring annual inspection obligation (Compliance) creates ongoing maintenance scheduling and recordkeeping.","Mandatory immediate replacement of any cracked fitting before further flight increases parts and labour costs when defects are found (Requirement).","Directive directs use of Aerostar Service Bulletin SB600-130 but records the AD's compliance timing differs from that Bulletin, creating potential procedural conflict (Requirement; Note).","Service Bulletin copy is held at CASA District Offices, so operators may need to obtain or view that document through regulator channels (Note).","Applicability is limited by airframe number (all models up to and including Airframe Number 0849), requiring registries to determine affected aircraft (Applicability).","High safety consequence (risk of catastrophic failure) increases enforcement urgency and reduces tolerance for discretionary deferral (Background)."],"plain_english_summary":"This airworthiness directive requires owners/operators of Aerostar (Piper/Ted Smith) 600 and 700 series aeroplanes (airframes up to and including No. 0849) to inspect the forward and aft fuselage horizontal stabiliser attachment fittings (P/N 210006‑001 and 210007‑001) in accordance with Aerostar Service Bulletin SB600‑130. Any fitting found cracked must be replaced before further flight.\n\nInitial inspection must occur within 5 hours time‑in‑service after 16 October 1995, with re‑inspections at intervals not to exceed one year. The Authority issued the directive after a report of a very large crack; failure may be catastrophic."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings","history":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings/history","analysis":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings/analysis","conflicts":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings/conflicts","importantCases":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings/important-cases","documents":"/api/acts/ad-tsa-600-43-fuselage-horizontal-stabiliser-attachment-fittings/documents"}}