{"id":"F2006B08065","name":"AD/CESSNA 210/15 Amdt 1 - Aileron Mass Balance Weight Attachment Rivets - Inspection","slug":"ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115157,"registerId":"commonwealth-F2006B08065-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 210/15 Amdt 1 - Aileron Mass Balance Weight Attachment Rivets - Inspection","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 210 Series Aeroplanes\n\n \n\nAD/CESSNA 210/15\n\nAmdt 1\n\n\nAileron Mass Balance Weight Attachment Rivets - Inspection\n\n\n10/74\n\n \n\nApplicability: All models with S/Nos. 21057841 to 21058220.\n\n \n\nRequirement: Inspect the rivets attaching the lower aileron skin to the balance weight for corrosion.\n\nWhere corrosion is suspected under the rivet heads attempts should be made to remove the rivet heads by a light sharp sideways blow with a screwdriver. All damaged or corroded rivets must be replaced.\n\n \n\nCompliance: Within 100 hours time in service after 29 September 1972 and there- after 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","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific airworthiness concern on a specific aircraft model range. It has not expanded beyond its original purpose of ensuring aileron rivet integrity."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined elements: applicability (serial number range) and compliance deadline","No cross-references to other legislation or regulations","Simple conditional logic: 'if corrosion suspected, then test; if damaged/corroded, then replace'","Single technical requirement with straightforward repetitive compliance interval","No exceptions, exemptions, or nested conditions"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for **Cessna 210 series aeroplanes** built within a specific serial number range (21057841 to 21058220).\n\n**What it requires:**\n- **Inspection**: Owners and operators must check the rivets that attach the lower aileron skin to the balance weight for **corrosion** (rust or deterioration).\n- **Testing**: If corrosion is suspected, mechanics must try to remove the rivet heads by hitting them sideways with a screwdriver to check if they're weakened.\n- **Replacement**: Any damaged or corroded rivets must be replaced.\n\n**When to comply:**\n- First inspection: Within 100 hours of flying time after 29 September 1972\n- Ongoing: Every 100 hours of flying time thereafter\n\n**Why it matters:**\nCorroded rivets in the aileron (the hinged surface on the wing that controls rolling) could fail, causing loss of control of the aircraft. This directive prevents potential accidents by ensuring these critical components remain airworthy."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied text presents the amended directive as a self-contained instruction (Applicability; Requirement; Compliance). The document does not include the prior version or compare this amendment to an earlier text, so there is no information here to conclude that the scope has changed from the original instrument."},"complexity_factors":["Narrow applicability limited to specific serial numbers (Applicability).","A single, specific inspection task repeated at a fixed interval (100 hours) reduces procedural complexity but creates recurring burden (Compliance).","Subjective trigger: the instruction uses the term “suspected” for corrosion, requiring inspector judgement (Requirement).","Specified manual test technique (“light sharp sideways blow with a screwdriver”) requires hands‑on skill and creates room for variation in execution (Requirement).","Clear mandatory corrective action (replace any damaged or corroded rivets) but no detailed standard for acceptable replacement technique or record‑keeping in the text provided (Requirement).","Legal authority is explicit in the header (Civil Aviation Regulations / Airworthiness Directive), so compliance is compulsory rather than advisory (header, Applicability, Compliance)."],"plain_english_summary":"What this instrument does (mechanics)\n\n- It is an airworthiness directive applying to Cessna 210 series aeroplanes with serial numbers 21057841 to 21058220. (Applicability)\n- It requires inspection of the rivets that attach the lower aileron skin to the aileron balance weight to check for corrosion. If corrosion is suspected beneath a rivet head, the rivet head should be tested by attempting to remove it using a light, sharp sideways blow with a screwdriver. Any rivets that are damaged or corroded must be replaced. (Requirement)\n- The inspections must be carried out within 100 hours time in service after 29 September 1972 and then at intervals not exceeding 100 hours time in service. (Compliance)\n\nWho this affects\n\n- Owners and operators of the specified Cessna 210 aeroplanes (Applicability).\n- Maintenance personnel who perform inspections and rivet replacements (Requirement).\n- The Civil Aviation Safety Authority is the issuing body under the Civil Aviation Regulations framework shown on the instrument header.\n\nWho pays and who decides\n\n- The operator or owner of each affected aeroplane is required to ensure the inspections and any replacements occur to meet the directive. That party therefore bears the costs of inspection labour, any rivets and replacement work, and the downtime while the work is done (Requirement; Compliance). \n- Judgement calls during implementation (for example, whether corrosion is “suspected” under a rivet head, and whether a screwdriver blow has removed a rivet head) rest with the inspecting maintenance personnel following the specified test method in the directive (Requirement).\n\nBehaviour changes and compliance burden\n\n- Subject to the directive, affected aircraft must undergo a recurring physical inspection of the aileron mass-balance rivets every 100 hours time in service (Compliance). \n- If corrosion or damage is found or suspected, maintenance action is required: attempting rivet-head removal by the specified manual technique and replacing any damaged or corroded rivets (Requirement). \n- The directive imposes a periodic maintenance task (labour), a parts cost if rivets are replaced, and aircraft out-of-service time while work is performed (Requirement; Compliance).\n\nImplementation details, discretion and risks\n\n- The directive prescribes a specific, manual test technique (a “light sharp sideways blow with a screwdriver”) to check for corrosion beneath rivet heads; that technique requires practitioner judgement and a hands-on inspection (Requirement). \n- The term “suspected” introduces a subjective threshold for further intervention: it creates reliance on the inspector’s assessment rather than an objective measurement device (Requirement). \n- Replacing any rivets judged damaged or corroded is mandatory under the directive; improper execution of the manual test or poor-quality replacement work could itself risk structural or operational issues, so competent maintenance practice is required (Requirement).\n\nPurpose claim and trade-offs\n\n- The document’s operative text directs inspections and replacements; it does not set out a detailed policy rationale in the text provided. The stated requirements are designed to find and remove corroded rivets connecting the lower aileron skin to the balance weight (Requirement). \n- Trade-offs created by these mechanical requirements are direct: routine inspection and replacement costs and downtime versus the intervention of removing corroded hardware. The directive transfers inspection and repair costs to aircraft owners/operators and places technical judgement with maintenance personnel who must follow the specified test and replacement instruction (Requirement; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection","history":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection/history","analysis":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection/analysis","conflicts":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection/conflicts","importantCases":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection/important-cases","documents":"/api/acts/ad-cessna-210-15-amdt-1-aileron-mass-balance-weight-attachment-rivets-inspection/documents"}}