{"id":"F2005L04105","name":"AD/DHC-8/105 - Elevator Trim and Gust Lock Chains - CANCELLED","slug":"ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":40056,"registerId":"commonwealth-F2005L04105-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bombardier (Boeing Canada/De Havilland) ","sectionType":"division","heading":"Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes","content":"### Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\n| AD/DHC-8/105 | Elevator Trim and Gust Lock Chains | 2/2006 DM |\n| ------------ | ---------------------------------- | --------- |\n\n| Requirement: | CANCELLED.                                                                                                |\n| ------------ | --------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 19 January 2006.                                                                  |\n| Background:  | This AD was issued in error. The requirements detailed in this AD are currently detailed in AD/DHC 8/104. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n14 December 2005","sortOrder":0},{"sectionNumber":"AD/DHC-8/105","sectionType":"part","heading":"AD/DHC-8/105","content":"## AD/DHC-8/105","sortOrder":1},{"sectionNumber":"Elevator Trim and Gust Lock Chains","sectionType":"part","heading":"Elevator Trim and Gust Lock Chains","content":"## Elevator Trim and Gust Lock Chains","sortOrder":2},{"sectionNumber":"2/2006 DM","sectionType":"part","heading":"2/2006 DM","content":"## 2/2006 DM","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2281},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"Originally intended to impose airworthiness requirements for elevator trim and gust lock chains, the instrument was issued in error and entirely cancels itself, effectively reducing the scope to nil and redirecting operators to AD/DHC 8/104."},"complexity_factors":["Document contains no operative provisions—only a cancellation statement","Single cross-reference to the correct replacement directive","No defined terms, schedules, or conditional logic","Extremely short (under 100 words of operative content)"],"plain_english_summary":"**What this does:** This document officially cancels Airworthiness Directive (AD) number AD/DHC-8/105, which originally concerned safety requirements for elevator trim and gust lock chains on Bombardier DHC-8 aircraft.\n\n**Why it matters:** The Civil Aviation Safety Authority admits this directive was published by mistake. The safety rules that were meant to be here actually exist in a different directive (AD/DHC 8/104). This cancellation removes the duplicate so operators don't get confused about which rules to follow.\n\n**Who is affected:** Owners and operators of Bombardier (De Havilland) DHC-8 series aeroplanes. They should ignore this cancelled directive and follow AD/DHC 8/104 instead for the relevant safety checks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled","history":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled/history","analysis":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled/analysis","conflicts":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled/conflicts","importantCases":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled/important-cases","documents":"/api/acts/ad-dhc-8-105-elevator-trim-and-gust-lock-chains-cancelled/documents"}}