{"id":"F2006B08694","name":"AD/DA40/1 - Mixture control cable","slug":"ad-da40-1-mixture-control-cable","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51864,"registerId":"commonwealth-F2006B08694-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nDiamond DA40 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/DA40/1 Mixture Control Cable 6/2003 T","sectionType":"part","heading":"AD/DA40/1 Mixture Control Cable 6/2003 TX","content":"# AD/DA40/1 Mixture Control Cable 6/2003 TX\n\nApplicability: DA40 aircraft serial numbers 40.006 \\- 40.020, 40.022 \\- 40.027, 40.030, 40.031,\n\n40.038 \\- 40.040, 40.046, 40.047, 40.050, 40.052, 40.054, 40.055, and 40.057.\n\nRequirement: 1. Inspect the mixture control cable for correct crimping as detailed in Diamond Aircraft Industries G.m.b.H Mandatory Service Bulletin (MSB) 40-012.\n\n2. Replace any mixture control cables found to be crimped as detailed in Picture 1 of Diamond Aircraft Industries G.m.b.H Mandatory Service Bulletin (MSB) 40- 012 with an approved replacement.\n\nNote: Austrian AD 112 refers.\n\nCompliance: 1. Unless previously accomplished, prior to further flight.\n\n2. Unless previously accomplished, prior to further flight.\n\nThis Airworthiness Directive becomes effective on 16 April 2003.\n\nBackground: Failure of the mixture control cable can lead to an inability to control mixture adjustment of the engine.\n\n![Signature of Jim Coyne Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nJim Coyne\n\nDelegate of the Civil Aviation Safety Authority 15 April 2003\n\n![](image.001.png)","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope: addressing a specific mechanical defect in a limited production run of Diamond DA40 aircraft. The directive has not expanded beyond its initial safety purpose."},"complexity_factors":["Very short document (approximately 250 words)","Only 3 defined sections: Applicability, Requirement, and Compliance","No nested exceptions or conditional logic beyond 'unless previously accomplished'","Single cross-reference to Austrian AD 112 (informational only)","Clear, direct instructions with minimal technical jargon explained via reference to manufacturer bulletin"],"plain_english_summary":"The Civil Aviation Safety Authority has issued a safety order for certain Diamond DA40 aeroplanes after a dangerous fault was found in the mixture control cable, which can prevent proper fuel‑air mixture control and risk engine failure. \n\nOwners and operators of the listed DA40 serial numbers must inspect for the crimped/damaged cable per Diamond Mandatory Service Bulletin 40‑012 and replace any defective cables with approved parts before the aircraft next flies."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD's scope aligns with its stated purpose: it applies only to the listed DA40 serial numbers and requires inspection and replacement of the mixture control cable as specified in MSB 40-012. It does not expand obligations beyond those aircraft or actions described in the instrument (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow applicability — specific DA40 serial numbers are listed (Applicability).","Simple, prescriptive actions — inspect crimping and replace defective cables per MSB 40-012 (Requirement).","Immediate compliance timing — both actions required 'prior to further flight' if not already done (Compliance).","Relies on an external Mandatory Service Bulletin for inspection detail, creating a dependence on manufacturer instructions (Requirement).","References a foreign authority (Austrian AD 112), indicating harmonised origin of the safety concern (Note).","Low procedural ambiguity but creates operational impact (possible grounding and replacement costs) for operators/owners."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Diamond DA40 aircraft to inspect the engine mixture-control cable crimping and replace any cable that matches the defective condition, following Diamond MSB 40-012. It must be done before the aircraft next flies. The measure is intended to prevent loss of mixture control caused by cable failure and therefore affects aircraft operators, maintenance providers and parts suppliers through inspection, replacement and temporary grounding until rectified."}},"importantCases":[],"_links":{"self":"/api/acts/ad-da40-1-mixture-control-cable","history":"/api/acts/ad-da40-1-mixture-control-cable/history","analysis":"/api/acts/ad-da40-1-mixture-control-cable/analysis","conflicts":"/api/acts/ad-da40-1-mixture-control-cable/conflicts","importantCases":"/api/acts/ad-da40-1-mixture-control-cable/important-cases","documents":"/api/acts/ad-da40-1-mixture-control-cable/documents"}}