{"id":"F2006B08123","name":"AD/CESSNA 210/73 - Upper Shoulder Harness Adjuster Spring","slug":"ad-cessna-210-73-upper-shoulder-harness-adjuster-spring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115240,"registerId":"commonwealth-F2006B08123-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 210/73 - Upper Shoulder Harness Adjuster Spring","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\n \n\n \n\n![](image.001.png)\n\n# AIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\n\n \n\nCessna 210 Series Aeroplanes\n\n \n\n# AD/CESSNA 210/73 Upper Shoulder Harness Adjuster Spring\n\n\n13/2004\n\n \n\nApplicability: Models 210, 210-5, 210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H, 210J, 210K,\n\nT210F, T210G, T210H, T210J, and T210K aircraft, with serial numbers listed in Cessna Single Engine Service Bulletin (SB) SEB86-8 Revision 1, dated 28 July 2003.\n\n \n\nRequirement: 1. Inspect only the upper shoulder harness adjuster (part number 443030-401) for the presence of a retainer spring, in accordance with SB SEB86-8 Revision 1.\n\n \n\nIf a retainer spring is found during the above inspection of the upper shoulder harness adjuster (part number 443030-401), before further flight, remove the spring by cutting each side, and stamp out the -401 identification number; in accordance with SB SEB86-8 Revision 1.\n\n \n\nIf a retainer spring is not found during the above inspection of the upper shoulder harness adjuster (part number 443030-401), before further flight, make an entry in the aircraft log book showing compliance with this Directive.\n\n \n\n2. Only incorporate Cessna Accessory Kits that have been identified, inspected, and modified in accordance with the Requirement document.\n\n \n\nNote: FAA AD 2004-19-01 Amdt 39-13795 refers.\n\n \n\nCompliance: 1. Within the next 25 hours time in service or at the next annual inspection after 23 December 2004, whichever occurs first.\n\n \n\n2. As of the effective date of this Directive.\n\n \n\nNote: Compliance with SB SEB86-8 original issue, dated 21 November 1986, constitutes terminating action for the requirements of this Directive, if shoulder harness adjuster part number 443030-401 was used.\n\n \n\nThis Airworthiness Directive becomes effective on 23 December 2004.\n\nCessna 210 Series Aeroplanes\n\n \n\nAD/CESSNA 210/73 (continued)\n\n \n\nBackground: The manufacturer determined that some of the shoulder harness belt adjusters included in the affected shoulder harness accessory kits may have had a small wire spring inadvertently installed on the belt friction pin. The actions required by this Directive are intended to prevent slippage of the pilot/co-pilot shoulder harness, which could result in failure of the shoulder harness to maintain proper belt length adjustment and tension.\n\n![](image.002.png)  \n\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 November 2004\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![](image.001.png)  \n\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 1 December 2004.\n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It addresses a specific manufacturing defect in a specific part on specific aircraft models. There is no evidence of scope creep; the directive remains tightly focused on the shoulder harness adjuster spring issue as originally identified."},"complexity_factors":["Single, specific mechanical component targeted (upper shoulder harness adjuster, part number 443030-401)","Clear binary inspection outcome (spring present vs. spring absent) with corresponding simple actions","Only 2 compliance deadlines, clearly stated","Minimal cross-referencing (only to Cessna Service Bulletin SEB86-8 Revision 1 and FAA AD 2004-19-01)","No nested exceptions or conditional logic beyond the presence/absence of the spring","Short document (approximately 1 page of substantive content)","Single applicability criterion (specific aircraft models and serial numbers listed in external document)"],"plain_english_summary":"Owners/operators of certain Cessna 210 series aircraft must inspect the upper shoulder-harness adjuster for a small wire spring that can cause the harness to slip. If the spring is present it must be cut out and the part ID stamped; if not, log the inspection. Action is required within 25 flight hours or by the next annual inspection (by 23 Dec 2004). This mandatory AD fixes a defect that could reduce occupant restraint in a crash."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD targets specific Cessna 210 serial numbers and a particular harness adjuster part and requires inspection/removal per Cessna SB SEB86-8 Rev 1. It aligns with the manufacturer's determination and references FAA AD 2004-19-01; it does not broaden applicability beyond the parts, kits and serial numbers identified in the source text."},"complexity_factors":["Technical specificity: targets a single part number (443030-401) and a small component (retainer spring) requiring hands‑on inspection and physical modification.","Reference to external document: compliance depends on following Cessna SB SEB86-8 Revision 1 (procedural dependency outside the AD).","Applicability limited by serial numbers listed in the service bulletin, requiring operators to check serial-number applicability.","Compliance timing constraint: inspection within 25 hours TIS or at next annual inspection, creating a short window for fleet operators.","Operational action: if spring found, operator must physically cut both sides of the spring and stamp out the -401 ID before further flight (immediate grounding until action completed).","Administrative burden: mandatory logbook entry when no spring is found and prohibition on installing unmodified accessory kits, shifting cost/responsibility to operators and kit suppliers.","Termination provision: compliance with the original issue of the service bulletin is accepted as terminating action only if the -401 part was used, requiring record checks of historical maintenance."],"plain_english_summary":"This Airworthiness Directive requires operators of specified Cessna 210 models (serial numbers listed in Cessna SB SEB86-8 Rev 1) to inspect the upper shoulder harness adjuster (part 443030-401) for a small retainer spring. If present, the spring must be cut off and the -401 identification stamped out before next flight; if absent, make a logbook entry. It also prohibits installing accessory kits unless they have been inspected and modified per the service bulletin. The stated aim is to prevent shoulder harness slippage."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring","history":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring/history","analysis":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring/analysis","conflicts":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring/conflicts","importantCases":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring/important-cases","documents":"/api/acts/ad-cessna-210-73-upper-shoulder-harness-adjuster-spring/documents"}}