{"id":"F2006B08696","name":"AD/DA40/3 - FADEC Wire Harness","slug":"ad-da40-3-fadec-wire-harness","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51868,"registerId":"commonwealth-F2006B08696-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/DA40/3 FADEC Wire Harness 4/2004 TX","sectionType":"part","heading":"AD/DA40/3 FADEC Wire Harness 4/2004 TX","content":"# AD/DA40/3 FADEC Wire Harness 4/2004 TX\n\nApplicability: DA40D aeroplanes with the following Serial Numbers:\n\nD4.020 to D4.024, D4.026, D4.041, D4.043 to D4.045, D4.049, D4.056, D4.060 to D4.064, D4.066, D4.067 and D4.078\n\nRequirement: 1. Amend the Aircraft Flight Manual (AFM Doc. 6.01.05-( ) by inserting Temporary Revision TR-MÄM-40-122 in accordance with Diamond Aircraft Industries GmbH Mandatory Service Bulletin No. MSBD4-029 Section 1.8 paragraph a).\n\n2. Carry out an inspection of the Full Authority Digital Engine Control (FADEC) wiring in accordance with MSBD4-029 Section 1.8 paragraph b).\n\nNote: Austrocontrol AD A-2004-002 refers.\n\nCompliance: For Requirement 1 \\- Before further flight after the effective date of this Directive.\n\nFor Requirement 2 \\- Within the next 50 hours time in service after the effective date of this Directive but no later than 31 March 2004.\n\nThis Airworthiness Directive becomes effective on 12 February 2004.\n\nBackground: Austrocontrol, the Austrian Civil Aviation Administration, has advised that a incorrect wire harness installation may cause a short circuit within the wire harness under certain FADEC operating conditions. This short circuit could result in an in- flight engine shut down. The current AFM Emergency Procedures do not contain measures to reset the FADEC.","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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains narrowly focused on correcting a specific unsafe condition: possible incorrect FADEC wire-harness installation that can short and cause in-flight engine shutdown. It requires an AFM temporary revision and an inspection per the manufacturer's Mandatory Service Bulletin. The measures are directly tied to that safety problem and do not broaden the directive’s scope beyond fixing the identified wiring/AFM deficiency."},"complexity_factors":["Short, focused directive with only two operative requirements (AFM amendment and wiring inspection).","Single limited applicability list (specific DA40D serial numbers) rather than broad categories.","Two compliance deadlines: immediate for AFM change (before next flight) and a 50 hours / calendar date limit for inspection (by 31 March 2004).","Dependence on an external technical document (Diamond MSBD4-029) for procedural detail rather than reproducing procedures in full.","One external cross-reference to Austrocontrol AD A-2004-002 (informational).","No nested exceptions or complex conditional logic within the directive text."],"plain_english_summary":"**What this directive does (mechanically):**\n\n- Requires specific Diamond DA40D aeroplanes (listed by serial number) to have their Aircraft Flight Manual (AFM) updated and their FADEC (Full Authority Digital Engine Control) wiring inspected.\n- The AFM change is achieved by inserting Temporary Revision TR-MÄM-40-122 into the AFM exactly as Diamond Aircraft Industries GmbH Mandatory Service Bulletin MSBD4-029 directs (see Requirement 1).\n- The FADEC wiring inspection must be performed in the manner and to the standard described in MSBD4-029 (see Requirement 2).\n- Timing: the AFM insertion must be done before the aircraft's next flight after the directive takes effect; the wiring inspection must be completed within 50 hours time-in-service after the directive takes effect, and in any case no later than 31 March 2004. The directive became effective 12 February 2004.\n\n**Who this affects:**\n\n- Owners and operators of the listed Diamond DA40D aeroplanes (serial numbers: D4.020–D4.024, D4.026, D4.041, D4.043–D4.045, D4.049, D4.056, D4.060–D4.064, D4.066, D4.067, D4.078).\n- Maintenance organisations and engineers who must carry out the AFM amendment and the FADEC wiring inspection/repairs according to Diamond's Mandatory Service Bulletin MSBD4-029.\n\n**Why it matters (stated safety problem and intended remedy):**\n\n- Background information supplied with the directive says an incorrect wire-harness installation can, under certain FADEC operating conditions, short internally and lead to an in-flight engine shutdown. The current AFM emergency procedures did not include a FADEC reset procedure. The directive therefore: (a) updates the AFM to add the temporary revision (presumably to give crews a reset procedure or revised emergency steps), and (b) requires an inspection of the FADEC wiring so an incorrect harness installation can be detected and fixed.\n\n**Who pays and who decides:**\n\n- Aircraft owners/operators pay for the AFM amendment (administrative action) and the inspection and any necessary corrective work (labour, parts, downtime). Maintenance providers decide how to schedule and perform the inspection/repairs, following MSBD4-029.\n- The Civil Aviation Safety Authority delegate issued the directive under the relevant airworthiness regulation, using the manufacturer's Mandatory Service Bulletin as the technical instruction set.\n\n**Costs, incentives and trade-offs to note:**\n\n- Direct costs are inspection labour, possible replacement or repair of wiring harnesses, and operational downtime while the inspection or repairs are done. These costs fall on the owners/operators of the affected serial-numbered aircraft.\n- The AFM change must be made before the next flight, so compliance imposes immediate administrative action on operators; the inspection window (50 hours or by 31 March 2004) allows limited operational flexibility but still may require scheduling maintenance within a short timeframe.\n- The directive relies on the manufacturer’s Mandatory Service Bulletin (MSBD4-029) for technical details. That concentrates technical discretion with the manufacturer’s instructions and requires operators/maintainers to interpret and apply that bulletin correctly.\n- Implementation risks include variability in how different maintenance organisations interpret and apply the MSB, availability of qualified personnel or parts for any corrective action, and recordkeeping to demonstrate compliance.\n\n**Potential operational effects:**\n\n- If an inspection finds incorrect harness installation, the aircraft may require repair or grounding until remedied, causing concentrated operational disruption for affected aeroplanes.\n- If no defects are found, the directive still imposes minor administrative and maintenance effort (AFM insertion and inspection time).\n\n**Cross-references and provenance:**\n\n- The directive expressly references Diamond Aircraft MSBD4-029 for procedural content and notes an equivalent Austrian authority (Austrocontrol AD A-2004-002). These references mean the precise inspection and AFM text come from the manufacturer and the related foreign AD.\n\n(References: Requirement 1 and 2; Compliance section; Background.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific wiring defect in specific aircraft. It has not expanded beyond its original purpose of correcting an unsafe condition in the FADEC wire harness installation."},"complexity_factors":["Very short document (approximately 300 words)","Only 2 substantive requirements","Clear applicability limited to 17 specific aircraft serial numbers","Simple compliance timeline (immediate + 50 hours/31 March 2004 deadline)","No defined terms section — all technical terms explained in context or commonly understood in aviation","Single cross-reference to Austrian aviation authority directive (Austrocontrol AD A-2004-002)","No nested exceptions or conditional logic"],"plain_english_summary":"This CASA Airworthiness Directive mandates owners/operators of 17 Diamond DA40D aeroplanes (serials D4.020–D4.078) to immediately insert a temporary flight manual revision with FADEC reset/engine-failure emergency procedures and to inspect FADEC wiring for an incorrect installation that could short and cause an in-flight engine shutdown. It matters because current manuals lack recovery procedures; the inspection and manual update prevent and mitigate a potentially fatal engine failure (inspection deadline: within 50 flight hours or by 31 Mar 2004)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-da40-3-fadec-wire-harness","history":"/api/acts/ad-da40-3-fadec-wire-harness/history","analysis":"/api/acts/ad-da40-3-fadec-wire-harness/analysis","conflicts":"/api/acts/ad-da40-3-fadec-wire-harness/conflicts","importantCases":"/api/acts/ad-da40-3-fadec-wire-harness/important-cases","documents":"/api/acts/ad-da40-3-fadec-wire-harness/documents"}}