{"id":"F2006B04974","name":"AD/CESSNA 170/46 - Elevator Cable Clevis to Aft Elevator Bellcrank Attachment","slug":"ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44862,"registerId":"commonwealth-F2006B04974-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AD/CESSNA 170/46 Elevator Cable Clevis t","sectionType":"part","heading":"AD/CESSNA 170/46 Elevator Cable Clevis to Aft","content":"# AD/CESSNA 170/46 Elevator Cable Clevis to Aft\n\nElevator Bellcrank Attachment\n\nApplicability: All model 172N with S/Nos. 17271035 to 17274523.\n\nAll model R172K with S/Nos. R1722930 to R1723425. All model 172RG with S/Nos. 172RG0001 to 172RG0789. All model F172 with S/Nos. F17201750 to F17202134.\n\nAll model FR172 with S/Nos. FR1720631 to FR1720675.\n\nRequirement: To ensure the integrity of the elevator control system perform the following:","sortOrder":0},{"sectionNumber":"10/81","sectionType":"part","heading":"10/81","content":"# AD/CESSNA 170/46 Elevator Cable Clevis to Aft\n\nElevator Bellcrank Attachment\n\nApplicability: All model 172N with S/Nos. 17271035 to 17274523.\n\nAll model R172K with S/Nos. R1722930 to R1723425. All model 172RG with S/Nos. 172RG0001 to 172RG0789. All model F172 with S/Nos. F17201750 to F17202134.\n\nAll model FR172 with S/Nos. FR1720631 to FR1720675.\n\nRequirement: To ensure the integrity of the elevator control system perform the following:\n\n#   \n10/81","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The supplied text repeatedly states the same applicability and the same requirement to perform work on the elevator cable clevis to aft elevator bellcrank attachment. There is no indication in the supplied text that the set of affected models/serial numbers or the stated purpose have changed from the instrument’s own wording; rather, the material is duplicated. Therefore, based on the supplied text, the scope has not changed."},"complexity_factors":["Narrow applicability given by multiple model names and precise serial-number ranges (adds administrative tracking complexity).","Safety-critical flight‑control component: requires qualified inspection/repair (technical complexity).","Required action text is incomplete in the supplied instrument — missing inspection steps, acceptance criteria and remedial instructions (procedural ambiguity increases implementation complexity).","No explicit timing, deadlines or enforcement mechanism in supplied text (creates compliance uncertainty and discretionary implementation).","Potential need to source parts and qualified maintenance personnel for concentrated, simultaneous demand among affected owners (logistical/market complexity)."],"plain_english_summary":"This directive requires inspection and corrective action on the elevator cable clevis-to-bellcrank attachment on specific Cessna 172/R172/172RG/F172/FR172 airframes listed by serial number. It affects owners/operators of those serial-numbered aircraft, who must arrange and pay for the work. The goal is to ensure elevator-control integrity, but the supplied text omits the detailed inspection steps, timing and enforcement mechanics, leaving practical uncertainty for compliance planning and maintenance providers."},"kimi_summary":{"content_quality":"rejected","complexity_score":2,"rejection_reason":"This appears to be a fragmented, corrupted, or incomplete copy of an Airworthiness Directive. The text is garbled with repeated headers, truncated content (the actual requirement instructions are missing after 'perform the following:'), and formatting artifacts ('10/81' appears twice as if from a page footer). The substance of the directive — what exactly must be inspected, how, and by when — is not present in this extract. This is not a complete or usable legislative document.","scope_assessment":{"changed":false,"description":"This appears to be a standard Airworthiness Directive targeting a specific mechanical defect in specific aircraft. There is no evidence of scope creep; it maintains the typical narrow, safety-focused scope of aviation maintenance directives."},"complexity_factors":["Very short document (appears to be a fragment or excerpt)","Only 5 aircraft models specified with serial number ranges","Single technical requirement stated but not fully detailed in this extract","No cross-references to other legislation or regulations","No defined terms section","No conditional logic or exceptions visible in this fragment"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's aviation safety regulator (CASA). It orders owners and operators of specific Cessna aircraft models to inspect and potentially fix a problem with the elevator control system.\n\n**What it targets:**\n- Specific Cessna 172N, R172K, 172RG, F172, and FR172 aircraft with particular serial numbers (listed in the document)\n\n**The safety issue:**\n- The **elevator cable clevis** (a U-shaped metal fitting that connects cables) attaching to the **aft elevator bellcrank** (a pivoting lever at the back of the plane that helps move the elevator) may have a fault that could compromise the elevator control system. The elevator controls the plane's pitch (nose up/down), so this is critical for flight safety.\n\n**What must be done:**\n- The document states a requirement to \"perform the following\" but the actual inspection/repair instructions appear truncated or missing from this fragment. In a complete AD, this would specify exactly what inspection, replacement, or modification is required and by when.\n\n**Why it matters:**\n- If the elevator control system fails, the pilot cannot control the aircraft's pitch, potentially leading to loss of control and crash. This AD is designed to catch a specific mechanical defect before it causes an accident."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment","history":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment/history","analysis":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment/analysis","conflicts":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment/conflicts","importantCases":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment/important-cases","documents":"/api/acts/ad-cessna-170-46-elevator-cable-clevis-to-aft-elevator-bellcrank-attachment/documents"}}