{"id":"F2006B05410","name":"AD/PA-20/5 - Cigar Lighter Circuit - Provision of Fuse","slug":"ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46062,"registerId":"commonwealth-F2006B05410-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-20/5 - Cigar Lighter Circuit - Provision of Fuse","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)  Piper PA-20 (Pacer) Series Aeroplanes\n\n \n\nAD/PA-20/5 Cigar Lighter Circuit - Provision of Fuse NK\n\nApplicability: All models with S/Nos. 20-1 to 20-1121. Document:  1. Piper SB No 163A; or\n\n2. FAA AD 58-16-1.\n\n \n\nCompliance: Forthwith.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused on a specific electrical modification for a specific aircraft model. It has not expanded beyond its original narrow technical purpose."},"complexity_factors":["Extremely short document (under 200 words)","No defined terms section","No cross-references to other legislation beyond two external technical documents","Simple unconditional mandate: install a fuse, do it now","Single applicability criterion (serial number range)","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"**What this is:** 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:** It requires owners and operators of Piper PA-20 \"Pacer\" series aeroplanes (serial numbers 20-1 through 20-1121) to install a fuse in the cigar lighter circuit. This is a straightforward electrical safety fix.\n\n**Who it affects:** Anyone who owns, operates, or maintains a Piper PA-20 aircraft within the specified serial number range.\n\n**Why it matters:** Without a fuse, the cigar lighter circuit could overheat or cause a fire — a serious risk in an aircraft. The directive makes compliance mandatory \"forthwith\" (immediately), meaning there's no grace period.\n\n**How to comply:** Follow either:\n- Piper Service Bulletin No. 163A (the manufacturer's official repair notice), or  \n- FAA AD 58-16-1 (the equivalent American safety order)\n\n**The bottom line:** If you fly or maintain one of these specific Piper aircraft, you must add this fuse immediately to keep the plane airworthy and legal to fly."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument, as presented, applies to all Piper PA-20 aeroplanes with serial numbers 20-1 to 20-1121 and mandates the provision of a fuse for the cigar lighter circuit with immediate effect. The provided text contains no indication that its scope has been broadened or narrowed from an earlier version; it sets a focused, specific requirement and points operators to the referenced technical documents for implementation."},"complexity_factors":["Narrow technical scope: single modification (provision of a fuse to a specific circuit) reduces substantive legal complexity.","Mandatory immediate compliance (\"Forthwith\") increases operational urgency for affected operators.","Reference to external technical documents (Piper SB No.163A or FAA AD 58-16-1) requires operators to obtain and follow separate technical instructions.","Applicability limited by serial-number range (20-1 to 20-1121), requiring operators to check eligibility.","Limited content in the AD (no alternative methods of compliance or exemptions stated in the provided text) simplifies legal interpretation but shifts complexity to technical execution."],"plain_english_summary":"This AD requires owners/operators of Piper PA‑20 (Pacer) aeroplanes serial numbers 20‑1 to 20‑1121 to fit a fuse in the cigar‑lighter electrical circuit forthwith. Compliance must follow the referenced technical instructions (Piper Service Bulletin No.163A or FAA AD 58‑16‑1). It’s mandatory, creates immediate maintenance and parts costs, and is issued by CASA under the Civil Aviation Regulations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse","history":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse/history","analysis":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse/analysis","conflicts":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse/conflicts","importantCases":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse/important-cases","documents":"/api/acts/ad-pa-20-5-cigar-lighter-circuit-provision-of-fuse/documents"}}