{"id":"F2006B05192","name":"AD/CESSNA 190/7 - Upper Shoulder Harness Adjuster Spring","slug":"ad-cessna-190-7-upper-shoulder-harness-adjuster-spring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45372,"registerId":"commonwealth-F2006B05192-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 190/7 - 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 190 and 195 Series Aeroplanes\n\n \n\n# AD/CESSNA 190/7 Upper Shoulder Harness Adjuster Spring\n\n\n13/2004\n\n \n\nApplicability: Models 190 and 195 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 190 and 195 Series Aeroplanes\n\n \n\nAD/CESSNA 190/7 (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":{"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":2,"scope_assessment":{"changed":false,"description":"The AD is narrowly targeted to correct a single manufacturing/assembly error (a small wire spring inadvertently installed on the friction pin of a specified adjuster). It does not expand beyond that safety-fix purpose: applicability is limited to specific models and serial numbers listed in the Service Bulletin, and the required actions are proportionate (inspect, remove spring if present, log the result, and only install kits that have been inspected/modified). The AD’s inclusion of a prohibition on installing uninspected kits and the stamping requirement are direct, contained measures to prevent recurrence and do not represent a significant expansion beyond the original corrective intent."},"complexity_factors":["Short, single-topic AD (inspection and minor modification only)","Two conditional branches: (a) spring found -> remove and stamp; (b) spring not found -> logbook entry","One external cross-reference: Cessna SB SEB86-8 Revision 1 (detailed procedure located there)","One additional cross-reference note to FAA AD 2004-19-01","Limited applicability by aircraft model and serial numbers listed in the Service Bulletin","Simple compliance timing: 25 hours TIS or next annual inspection (whichever first)","Small number of actionable requirements (inspect, remove/mark, and restrict kit installation)"],"plain_english_summary":"**What this instrument does (mechanically)**\n\n- This is an Airworthiness Directive (AD) that requires a short inspection and, if necessary, a minor modification to a specific shoulder-harness adjuster used on certain Cessna 190 and 195 aeroplanes (the adjuster is part number 443030-401).  (See \"Applicability\" and \"Requirement\".)\n- Inspect the upper shoulder-harness adjuster for the presence of a small retainer spring, following Cessna Single Engine Service Bulletin SEB86-8 Revision 1.\n  - If the spring is present: before the aircraft is next flown, cut the spring on each side (remove it) and stamp out the \"-401\" identification on the adjuster (so the part is no longer identified as -401), in accordance with the Service Bulletin.\n  - If the spring is not present: before further flight make an entry in the aircraft logbook recording compliance with the AD.\n- From the AD effective date, only install accessory kits that have been identified, inspected and modified as required by the Service Bulletin.\n- The inspection or modification must be done within the next 25 hours time-in-service or at the next annual inspection after 23 December 2004, whichever comes first.  Compliance with the original issue of SB SEB86-8 (21 November 1986) is accepted as terminating action where the -401 adjuster was used.\n\n**Who this affects**\n\n- Owners/operators of Cessna 190 and 195 aeroplanes with the serial numbers listed in Cessna SB SEB86-8 Revision 1.  Aircraft that do not have that serial number listing are not covered by this AD.\n- Maintenance organisations, licensed mechanics, and parts suppliers who install or supply the shoulder-harness accessory kits for those models.\n\n**Why it matters (stated purpose and mechanical effect)**\n\n- The manufacturer found that some shoulder-harness belt adjusters in affected accessory kits may contain a small wire retainer spring installed on the belt friction pin. The presence of that spring can allow the shoulder harness to slip and fail to maintain the correct belt length/tension.\n- The AD’s required inspections and removal of the spring (if present) are intended to prevent harness slippage by ensuring the friction-pin assembly is not fitted with that spring (Requirement; Background).\n\n**Who pays, who decides, and what changes in behaviour**\n\n- Who decides: The Civil Aviation Safety Authority delegate issued the AD; it is a mandatory regulatory requirement for affected aircraft (cover page and final signature).\n- Who pays: aircraft owners/operators bear the cost of the inspection and any minor modification (cutting out the spring and stamping the part), and the maintenance organisation performs the work. If parts or labour are required beyond the AD actions (e.g. replacement adjuster), owners pay those costs.\n- Behavioural change: maintenance providers must inspect the specified adjuster on affected aircraft within the stated compliance window; they must not fit accessory kits that have not been inspected/modified per the Service Bulletin.\n\n**Compliance burden and implementation notes**\n\n- Time burden appears small: an inspection and, if needed, cutting out a small spring and stamping the part. The AD imposes a short compliance window (25 hours TIS or next annual) that could force scheduling of maintenance sooner than planned.\n- Administrative requirement: if no spring is present, the owner/operator must make an entry in the aircraft logbook recording compliance.\n- Part marking: the AD requires stamping out the \"-401\" identification when the spring is removed. That action alters the part’s identifier and may affect traceability or future parts-recognition; operators should note that in logbooks and records.\n- Supply-chain effect: the AD prevents installation of uninspected/unmodified accessory kits after the effective date, which requires suppliers and installers to verify kits conform to the SB before fitting.\n\n**Trade-offs, risks and incentives**\n\n- Direct cost is concentrated on owners/operators of the affected few aircraft and on maintenance providers performing the task; benefit (reduced risk of harness slippage) accrues to pilots and passengers of those aircraft.\n- The AD creates an incentive for owners to check records: those who previously complied with the original Service Bulletin are treated as already compliant (terminating action clause).\n- Risk of operational disruption is low but non-zero: an aircraft may be grounded until the inspection/modification is done if the owner/operator cannot meet the compliance window.\n- The stamping requirement reduces the chances of re-use as an unmodified -401 adjuster but also reduces part traceability; that is an explicit trade-off between safety marking and serial/part identification.\n\n**Cross-references and where to find the detailed steps**\n\n- The AD incorporates by reference Cessna SB SEB86-8 Revision 1 (the Service Bulletin contains the inspection and modification steps). The AD also notes the related FAA AD 2004-19-01.\n\n(References in parentheses above correspond to the AD sections: Applicability; Requirement; Compliance; Note; Background.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: addressing a specific manufacturing defect in shoulder harness adjusters for two Cessna aircraft models. The scope has not expanded beyond this safety-critical hardware issue."},"complexity_factors":["Single, clearly defined applicability (two specific aircraft models by serial number)","Straightforward conditional logic: inspect → if spring found, remove; if not found, log it","Only 2 compliance deadlines, clearly stated","Minimal cross-referencing (one service bulletin and one FAA AD mentioned in notes only)","No nested exceptions or complex defined terms","Short document (approximately 400 words of substantive content)"],"plain_english_summary":"This safety order requires owners/operators of Cessna 190 and 195 series aircraft (as listed in Cessna Service Bulletin SEB86-8 Rev.1) to inspect the pilot upper shoulder-harness adjuster. If a small wire spring is present it must be cut off and the part number stamped out before further flight; if absent, log the inspection. The spring can allow the harness to slip, risking injury. Comply within 25 flight hours or by the next annual inspection after 23 Dec 2004 (effective 23 Dec 2004)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring","history":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring/history","analysis":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring/analysis","conflicts":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring/conflicts","importantCases":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring/important-cases","documents":"/api/acts/ad-cessna-190-7-upper-shoulder-harness-adjuster-spring/documents"}}