{"id":"F2006B11230","name":"AD/M20/23 - Low Fuel Pressure Warning - Removal","slug":"ad-m20-23-low-fuel-pressure-warning-removal","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56949,"registerId":"commonwealth-F2006B11230-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/M20/23 - Low Fuel Pressure Warning - Removal","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Mooney M20 Series Aeroplanes\n\n \n\nAD/M20/23 Low Fuel Pressure Warning - Removal 5/76\n\nApplicability: Models M20C, S/N 20-0010, 20-1147 thru 20-1172; Model M20E, S/N 21-0038, 21-\n\n1161 thru 21-1181; Model M20F S/N 22-1179 thru 22-1272.\n\n \n\nDocument: 1. Mooney SB M20-193A; or\n\n \n\n2. FAA AD 76-10-05.\n\n \n\nCompliance: Before 30 July 1976.\n\n \n\nNote: The low fuel pressure warning system may be refitted to a section of the fuel system located in the engine compartment to a scheme approved by the Secretary.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive focused specifically on the removal/relocation of a fuel pressure warning system in specific Mooney aircraft. The scope remains tightly constrained to its original safety purpose with no evidence of scope creep."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 3 defined applicability criteria (specific aircraft models and serial number ranges)","Single compliance action with one clear deadline","One conditional exception (refitting allowed with Secretary approval)","No cross-references to other legislation beyond optional compliance documents","No nested definitions or interpretive provisions"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain **Mooney M20 series aeroplanes** to **remove their low fuel pressure warning systems** by a deadline of **30 July 1976**.\n\n**Who it affects:**\nSpecific serial numbers of three Mooney models:\n- **M20C** (specific serial numbers listed)\n- **M20E** (specific serial numbers listed)  \n- **M20F** (specific serial numbers listed)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety instructions. If you own one of these aircraft, you **must** comply or the aircraft cannot legally fly. The directive suggests the existing low fuel pressure warning system was potentially unsafe or unreliable in its original configuration.\n\n**Important exception:**\nOwners can **refit** (reinstall) the warning system **if** they move it to a different location — specifically to a section of the fuel system in the **engine compartment** — but only if the new installation is approved by the **Secretary** (the government official responsible for aviation safety at the time).\n\n**How to comply:**\nFollow either:\n- **Mooney Service Bulletin M20-193A**, or\n- **FAA Airworthiness Directive 76-10-05** (the equivalent US safety order)\n\nThis is a historical directive from 1976, so compliance would have been required decades ago for any aircraft still in operation."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive explicitly targets a defined set of Mooney M20 models and serial numbers and requires removal of the low fuel pressure warning by a set date (Applicability; Compliance). The instrument also permits a conditional refit only under an approved scheme (Note). The text does not indicate any expansion or contraction of that stated scope beyond these specified requirements."},"complexity_factors":["Narrow technical scope with specific models and serial numbers (Applicability)","Fixed compliance deadline which concentrates operational and scheduling burden (Compliance)","Cross-reference to external technical documents (Mooney SB M20-193A; FAA AD 76-10-05) that determine exact work to be done (Document)","Administrative discretion required for approval of any refit scheme (Note)","Minimal explanatory material in the text about underlying safety rationale or remediation options"],"plain_english_summary":"This instrument requires owners/operators of specified Mooney M20 airframes to remove the low fuel pressure warning system using Mooney SB M20-193A or FAA AD 76-10-05, with work completed by 30 July 1976. Costs and scheduling fall to the aircraft operators; any reinstallation is only allowed if relocated to the engine compartment and done under a refit scheme approved by the Secretary, who controls discretionary approval."}},"importantCases":[],"_links":{"self":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal","history":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal/history","analysis":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal/analysis","conflicts":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal/conflicts","importantCases":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal/important-cases","documents":"/api/acts/ad-m20-23-low-fuel-pressure-warning-removal/documents"}}