{"id":"F2006B08375","name":"AD/CESSNA 400/91 - Elevator Bellcrank Bracket Integrity","slug":"ad-cessna-400-91-elevator-bellcrank-bracket-integrity","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115797,"registerId":"commonwealth-F2006B08375-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/91 - Elevator Bellcrank Bracket Integrity","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 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/91 Elevator Bellcrank Bracket Integrity 12/86\n\nApplicability: Model 441 S/No.s 0001 to 0355.\n\n \n\nRequirement: Action in accordance with Cessna Service Bulletin CQB86-13.\n\n \n\nCompliance: Within 100 hours time in service after 31 December 1986 or at the next scheduled inspection for Maintenance Release after 31 December 1986 whichever is the later.\n\n \n\nBackground: The manufacturer advises that there have been instances of rivet failure.\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 \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2127},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope as a targeted safety intervention for a specific mechanical defect in defined aircraft. It has not expanded beyond the single issue of elevator bellcrank bracket rivet failures."},"complexity_factors":["Single external reference to technical standard (Cessna Service Bulletin CQB86-13)","Narrow applicability restricted to specific aircraft model and serial number range","Simple compliance calculation comparing only two variables (flight hours vs. inspection date)","No defined terms, interpretive provisions, or nested exceptions"],"plain_english_summary":"This mandatory safety order requires owners/operators of Cessna Model 441 aircraft (S/N 0001–0355) to inspect and repair the elevator bellcrank bracket per Cessna Service Bulletin CQB86‑13. It addresses rivet failures that can sever pilot control of pitch, posing a crash risk. Work must be done within 100 flight hours after 31 Dec 1986 or at the next scheduled maintenance, whichever is later."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity","history":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity/history","analysis":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity/analysis","conflicts":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity/conflicts","importantCases":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity/important-cases","documents":"/api/acts/ad-cessna-400-91-elevator-bellcrank-bracket-integrity/documents"}}