{"id":"F2006B05267","name":"AD/CESSNA 206/60 - Upper Shoulder Harness Adjuster Spring","slug":"ad-cessna-206-60-upper-shoulder-harness-adjuster-spring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45621,"registerId":"commonwealth-F2006B05267-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 206/60 - Upper Shoulder Harness Adjuster Spring","content":"![](image.001.png)\n\n![](image.001.png)  \nAIRWORTHINESS 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\nCessna 206 Series Aeroplanes\n\nAD/CESSNA 206/60 Upper Shoulder Harness\n\nAdjuster Spring\n\n  \n13/2004\n\nApplicability: Models 206, P206, P206A, P206B, P206C, P206D, P206E, U206, U206A, U206B, U206C, U206D, TP206A, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B,\n\nTU206C, and TU206D aircraft, with serial numbers listed in Cessna Single Engine Service Bulletin (SB) SEB86-8 Revision 1, dated 28 July 2003.\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\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\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\n2. Only incorporate Cessna Accessory Kits that have been identified, inspected, and modified in accordance with the Requirement document.\n\nNote: FAA AD 2004-19-01 Amdt 39-13795 refers.\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\n2. As of the effective date of this Directive.\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\nThis Airworthiness Directive becomes effective on 23 December 2004.\n\nCessna 206 Series Aeroplanes\n\nAD/CESSNA 206/60 (continued)\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\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 November 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 1 December 2004.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive implements inspection and corrective action described in Cessna SB SEB86-8 Revision 1 for the listed Cessna 206-series serial numbers and targets a single part (PN 443030-401). It sets compliance timing and limits fitted accessory kits to those inspected/modified per the SB. It therefore aligns with the manufacturer's identified scope and does not broaden applicability beyond the SB's listed models/serials."},"complexity_factors":["Narrow applicability tied to specific Cessna 206 models and serial numbers listed in Cessna SB SEB86-8 Rev 1 (Applicability).","Single identified component focus: upper shoulder harness adjuster, part number 443030-401 (Requirement 1).","Straightforward required actions: inspect; if spring present cut each side and stamp out -401; if absent, make logbook entry (Requirement 1).","Short, concrete compliance window: within 25 hours time in service or at next annual inspection after 23 Dec 2004 (Compliance 1).","Dependence on external documents and prior work: mandates work in accordance with SB SEB86-8 Rev 1 and references FAA AD 2004-19-01 (Requirement/Note).","Ongoing procurement constraint: only incorporate accessory kits that have been identified, inspected and modified per the Requirement document (Requirement 2).","Termination clause referencing original SB complicates records: compliance with original SB constitutes terminating action if the -401 part was used (Note)."],"plain_english_summary":"This Airworthiness Directive requires operators of the specified Cessna 206-series aircraft (serial numbers listed in Cessna SB SEB86‑8 Rev 1) to inspect the upper shoulder-harness adjuster (part number 443030-401) for a small retainer spring and, if found, cut it off and stamp out the -401 ID; if not found, record compliance in the logbook. CASA says the measure prevents shoulder-harness slippage. Compliance is within 25 flight hours or at the next annual inspection, and only accessory kits inspected/modified per the SB may be fitted."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"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 (shoulder harness adjuster spring) for specific Cessna 206 models. The directive has not expanded beyond this original safety purpose."},"complexity_factors":["Single, specific mechanical defect addressed (one part, one problem)","Clear binary decision tree: spring present (remove it) or absent (log it)","Only 2 main compliance actions with straightforward timing","Minimal cross-referencing (one Cessna service bulletin and one FAA AD mentioned in notes only)","No nested exceptions or conditional logic beyond the spring present/absent check","Short document (approximately 400 words) with plain language background"],"plain_english_summary":"This CASA Airworthiness Directive covers specific Cessna 206/P206/U206/TP206/TU206 aircraft listed by serial number. A small, incorrectly installed wire spring on the upper shoulder-harness adjuster (PN 443030-401) can allow the harness to slip, reducing occupant protection. Owners/operators must inspect within 25 flight hours or at the next annual after 23 Dec 2004, remove and mark affected parts, and log the action; only inspected/modified accessory kits may be fitted."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring","history":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring/history","analysis":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring/analysis","conflicts":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring/conflicts","importantCases":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring/important-cases","documents":"/api/acts/ad-cessna-206-60-upper-shoulder-harness-adjuster-spring/documents"}}