{"id":"F2006B04982","name":"AD/CESSNA 170/54 - Aircraft Repair","slug":"ad-cessna-170-54-aircraft-repair","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44876,"registerId":"commonwealth-F2006B04982-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 170/54 - Aircraft Repair","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nCessna 170, 172, F172, FR172 and 175 Series Aeroplanes\n\nAD/CESSNA 170/54 Aircraft Repair 3/91\n\nApplicability: All aircraft which have been repaired by Capricorn Aircraft Repair of Thangool, QLD., between 2 December 1985 and 29 November 1990.\n\nRequirement: Inspect the aircraft and determine whether previous repairs carried out by Capricorn Aircraft Repair are supported by approved data, and where approved, that the replacement components used in the repair are identical to the components they replaced or are approved as replacement components.\n\nNote 1. Aircraft found not to have been repaired to approved data or to contain non identical or non approved components will be required to have any deficiencies rectified prior to further flight.\n\nNote 2. The Authority is to be advised of any aircraft inspected as a result of this directive.\n\nCompliance: At the next scheduled inspection for Maintenance Release after 21 March 1991.\n\nBackground: An inspection of aircraft repaired by Capricorn Aircraft Repair has revealed discrepancies in both structural repair data and replacement components.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1339},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope addressing specific airworthiness concerns regarding repairs conducted by Capricorn Aircraft Repair during the defined period. No evidence of scope expansion beyond the original safety investigation."},"complexity_factors":["Narrow applicability limited to specific aircraft models, single maintenance organisation, and defined 5-year period","Single compliance action (visual/records inspection) with binary pass/fail outcome","No defined terms or legislative cross-references","Clear remediation pathway specified (rectify before flight)"],"plain_english_summary":"This is a **safety inspection order** for specific Cessna aircraft that were repaired by a dodgy maintenance shop in Queensland.\n\n**Who it affects:**\nOwners of **Cessna 170, 172, and 175 series aircraft** that were repaired by **Capricorn Aircraft Repair in Thangool, QLD** between **2 December 1985 and 29 November 1990**.\n\n**What you must do:**\nBefore your aircraft's next scheduled maintenance check after 21 March 1991, you must have it inspected to verify:\n- **Repairs were done properly** — using approved engineering data (not made-up methods)\n- **Parts are correct** — replacement components must be identical to originals or officially approved alternatives\n\n**If problems are found:**\nThe aircraft **cannot fly until fixed**. You'll also need to notify CASA (Civil Aviation Safety Authority) that you've done the inspection.\n\n**Why this exists:**\nAuthorities discovered this particular repair shop used unapproved repair methods and incorrect parts on some aircraft, creating potential safety risks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-170-54-aircraft-repair","history":"/api/acts/ad-cessna-170-54-aircraft-repair/history","analysis":"/api/acts/ad-cessna-170-54-aircraft-repair/analysis","conflicts":"/api/acts/ad-cessna-170-54-aircraft-repair/conflicts","importantCases":"/api/acts/ad-cessna-170-54-aircraft-repair/important-cases","documents":"/api/acts/ad-cessna-170-54-aircraft-repair/documents"}}