{"id":"F2006B07392","name":"AD/TBM 700/9 - Windshield De-Icing","slug":"ad-tbm-700-9-windshield-de-icing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49580,"registerId":"commonwealth-F2006B07392-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TBM 700/9 - Windshield De-Icing","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)  \nAerospatiale (Socata) TBM 700 Series Aeroplanes\n\nAD/TBM 700/9 Windshield De-Icing 2/95\n\nApplicability: Model TBM 700 series aeroplanes with serial numbers 1 to 62, 67, 68, 70, 73 to 75,\n\n77, 78 and 80.\n\nRequirement: Action in accordance with Socata TBM 700 Mandatory Service Bulletin SB 70-037- 30 dated October 1994, (installation of Kit OPT70 K043-30 is only mandatory if the right-hand windshield de-icing option is fitted).\n\nNote: DGAC AD 94-267(B) dated 7 December 1994 refers.\n\nCompliance: Either within 100 hours time in service after 2 February 1995 or during the next annual inspection, whichever occurs first.\n\nBackground: Compliance with this Directive provides additional protection against Electromagnetic Interference (EMI) being conducted by the windshield de-icing system wiring.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive’s scope, as stated, requires a wiring modification or kit installation for specified TBM 700 serial numbers to mitigate EMI from windshield de‑icing systems. The instrument text does not show any expansion or narrowing beyond that stated purpose and the listed applicability; it appears consistent with the original technical intent described in the Background and the manufacturer service bulletin referenced (Applicability; Requirement; Background)."},"complexity_factors":["Narrow, well‑defined applicability limited to specific aircraft serial numbers (Applicability).","Single technical requirement tied to a single manufacturer service bulletin (Requirement).","A binary conditional (kit mandatory only if right‑hand de‑icing option fitted) reduces branching complexity (Requirement).","Short, explicit compliance window with two clear options (100 hours or next annual inspection) limits procedural ambiguity (Compliance).","Dependence on an external manufacturer document (SB 70-037-30) requires access to and correct application of that document, adding practical but not legal complexity (Requirement).","Reference to a foreign AD (DGAC) creates a cross-reference but does not expand or complicate obligations in this text (Note)."],"plain_english_summary":"What this instrument does, mechanically\n\n- This airworthiness directive (AD) requires certain TBM 700 aeroplanes (specific serial numbers listed) to have the windshield de-icing wiring modified or equipment installed in accordance with a specific manufacturer service bulletin (Socata TBM 700 Mandatory Service Bulletin SB 70-037-30, October 1994). (Applicability; Requirement)\n- If the right‑hand windshield de‑icing option is fitted, installation of Kit OPT70 K043-30 is mandatory; otherwise the action is the service-bulletin work only. (Requirement)\n- Aircraft operators must comply either within the next 100 hours time in service after 2 February 1995 or at the next annual inspection, whichever comes first. (Compliance)\n- The directive’s stated technical purpose is to provide additional protection against electromagnetic interference (EMI) conducted by the windshield de‑icing system wiring. (Background)\n\nWho this affects and who pays\n\n- The directive applies only to TBM 700 aeroplanes with the serial numbers listed. Owners/operators of those aircraft are required to arrange and pay for the work prescribed by the Socata service bulletin unless the specific kit is not applicable. (Applicability; Requirement)\n- Maintenance providers or workshops doing the installation will need access to the Socata service bulletin and, where relevant, Kit OPT70 K043-30. That creates a demand for parts and technical instructions from the manufacturer. (Requirement)\n\nHow it changes behaviour and decisions\n\n- Aircraft owners/operators must schedule the modification within the stated compliance window, either by adding the work inside 100 flight hours after 2 Feb 1995 or by combining it with the next annual inspection. That imposes a timing constraint on maintenance planning. (Compliance)\n- Maintenance organisations must follow the manufacturer’s mandatory service bulletin to satisfy the directive. This channels the technical method and parts sourcing through the manufacturer’s published procedure. (Requirement)\n\nCosts, incentives, trade-offs and implementation risks (source‑grounded)\n\n- Direct costs: owners/operators bear the cost of complying (labour, parts, possible kit purchase) because the AD mandates installation per the manufacturer bulletin. The text does not state subsidy or reimbursement. (Requirement)\n- Concentration of costs: only a defined set of serial-numbered aircraft are affected, so the financial burden is concentrated on those owners/operators. (Applicability; Requirement)\n- Benefit concentration: the stated safety/EMI protection benefit accrues to the affected aircraft and their operators; the directive does not create an ongoing charge after compliance is complete. (Background)\n- Dependency on manufacturer documentation: compliance requires following SB 70-037-30, so implementers must obtain and apply the manufacturer’s procedural and parts specifications. That creates a reliance on the manufacturer for the precise technical method. (Requirement)\n- Conditional obligation: the additional kit (OPT70 K043-30) is only mandatory where the right‑hand de‑icing option is installed, so owners without that option avoid that particular cost. (Requirement)\n- Scheduling and operational trade-off: operators must choose whether to meet the 100‑hour window or defer to the next annual inspection earlier, which affects maintenance planning and aircraft availability. (Compliance)\n- Implementation risk: the directive targets reduction of EMI conducted by the de‑icing wiring; correct installation per the bulletin is required to achieve that technical effect. The AD does not describe testing or verification steps after installation in this text. (Background; Requirement)\n\nRegulatory cross-reference\n\n- The notice references a DGAC (French authority) AD (DGAC AD 94-267(B), 7 December 1994), indicating the action aligns with or derives from a foreign airworthiness authority’s directive. The AD text does not expand on differences or additional requirements. (Note)\n\nNet procedural effect\n\n- Owners/operators of listed TBM 700 aircraft must obtain SB 70-037-30, schedule and fund the required installation or wiring modification (and Kit OPT70 K043-30 if applicable), and complete it within the stated compliance window to meet the AD’s requirements. (Applicability; Requirement; Compliance)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific technical safety issue in a limited fleet of aircraft. It has not expanded beyond its original purpose of addressing EMI risks in windshield de-icing systems."},"complexity_factors":["Single, specific technical requirement with clear reference to manufacturer service bulletin","Limited applicability (specific serial numbers and optional equipment only)","Simple compliance deadline (two alternative triggers: flight hours or annual inspection)","No nested definitions, cross-references to other legislation, or conditional exceptions","Background explanation provided in plain language"],"plain_english_summary":"This is a **safety order for specific aircraft**.\n\n**What it does:**\nThis document is an **Airworthiness Directive (AD)** — essentially a mandatory safety fix issued by Australia's aviation safety regulator. It requires owners or operators of certain **Socata TBM 700 aeroplanes** to modify the wiring for the windshield de-icing system.\n\n**Who it affects:**\n- Owners and operators of TBM 700 aircraft with specific serial numbers (1–62, 67, 68, 70, 73–75, 77, 78, and 80)\n- Only applies if the aircraft has the right-hand windshield de-icing option installed\n\n**What must be done:**\nThe aircraft must be modified according to the manufacturer's **Mandatory Service Bulletin** (SB 70-037-30, dated October 1994). This involves installing a specific kit (OPT70 K043-30) to shield the de-icing system wiring from **Electromagnetic Interference (EMI)** — electrical noise that can disrupt aircraft systems.\n\n**When it must be done:**\n- Within 100 hours of flying time after 2 February 1995, **or**\n- At the next annual inspection (whichever comes first)\n\n**Why it matters:**\nEMI can interfere with critical aircraft electronics. This directive prevents potential safety hazards caused by electrical interference conducted through the de-icing system wiring."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tbm-700-9-windshield-de-icing","history":"/api/acts/ad-tbm-700-9-windshield-de-icing/history","analysis":"/api/acts/ad-tbm-700-9-windshield-de-icing/analysis","conflicts":"/api/acts/ad-tbm-700-9-windshield-de-icing/conflicts","importantCases":"/api/acts/ad-tbm-700-9-windshield-de-icing/important-cases","documents":"/api/acts/ad-tbm-700-9-windshield-de-icing/documents"}}