{"id":"F2006B08092","name":"AD/CESSNA 210/43 Amdt 1 - Alternator Ground Strap - Installation","slug":"ad-cessna-210-43-amdt-1-alternator-ground-strap-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115202,"registerId":"commonwealth-F2006B08092-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 210/43 Amdt 1 - Alternator Ground Strap - Installation","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)  Cessna 210 Series Aeroplanes\n\n \n\nAD/CESSNA 210/43\n\nAmdt 1\n\n\nAlternator Ground Strap - Installation 9/82\n\n \n\nApplicability: All model 210/P210/T210 with S/Nos. 21058783 to 21062666 except 21062650 and 21062662, P21000001 to P21000026, T210-0001 to T210-0454.\n\n \n\nDocument: 1. Cessna SIL SE79-59; or\n\n \n\n2. FAA AD 79-25-07.\n\n \n\nCompliance: 1. Within 100 hours time in service after 31 March 1982.\n\n \n\n2. Each time an engine is installed in an aircraft following initial compliance.\n\n \n\nBackground: Compliance has been amended by item 2 due to reports from industry that ground straps are being omitted from refitment on engine reinstallations.\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 AD maintains its original narrow scope — addressing a specific electrical grounding issue on specific Cessna 210 variants. The amendment (Amdt 1) merely tightens compliance requirements to cover engine reinstallation scenarios, which is a logical operational extension rather than scope creep. The document remains tightly focused on its original safety purpose."},"complexity_factors":["Very short document (approximately 200 words)","Only 3 defined applicability criteria (aircraft model ranges and two exceptions)","Simple two-part compliance structure with clear time trigger","No cross-references to other legislation beyond two reference documents (Cessna SIL and FAA AD)","Single amendment with straightforward rationale explained in plain language","No nested conditions or exceptions beyond the initial serial number exclusions"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). Think of it as a \"recall notice\" for aircraft, but legally binding.\n\n**What it requires:** Owners and operators of specific Cessna 210 series aircraft must install a ground strap on the alternator (an electrical component that charges the battery). This must be done:\n- **First time:** Within 100 hours of flying time after 31 March 1982\n- **Every time after:** Whenever the engine is removed and reinstalled, the ground strap must be put back on\n\n**Who it affects:** Specific Cessna 210, P210 (pressurized), and T210 (turbocharged) models with serial numbers in the listed ranges. Two specific aircraft (serial numbers 21062650 and 21062662) are excluded.\n\n**Why it matters:** The amendment (Amdt 1) was made because mechanics were forgetting to reinstall these ground straps when putting engines back in after maintenance. Without proper grounding, the alternator can fail or cause electrical fires — a serious safety risk in flight.\n\n**The bottom line:** If you own or maintain one of these Cessnas, you cannot skip this step during engine work. It's not optional — it's a legal requirement to keep the aircraft airworthy."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The instrument's scope was expanded by adding a recurring compliance requirement. The original requirement required installation within 100 hours after 31 March 1982 (Compliance, item 1). The amendment adds item 2, requiring the ground strap to be installed each time an engine is installed in the aircraft following initial compliance. The Background expressly states this change responds to reports that straps were omitted during engine refits."},"complexity_factors":["Narrow technical scope: applies only to specific Cessna 210/P210/T210 serial-number ranges with two serial-number exceptions (Applicability).","Clear compliance timeline and recurrence: two explicit compliance triggers (initial within 100 hours after 31 March 1982; repeat on each engine installation) (Compliance).","Reliance on external technical documents for procedures: installation method is delegated to Cessna SIL SE79-59 or FAA AD 79-25-07 rather than specified in-line (Document).","Amendment history affects ongoing maintenance obligations: item 2 creates a recurring obligation tied to future maintenance events (Background).","No penalty or enforcement detail included in text: leaves enforcement mechanism implicit within the AD regime rather than describing enforcement steps."],"plain_english_summary":"This AD requires owners/operators and maintenance organisations of specified Cessna 210/P210/T210 serial numbers to install an alternator ground strap per Cessna SIL SE79-59 or FAA AD 79-25-07. The strap must be fitted within 100 hours TIS after 31 Mar 1982 and thereafter whenever an engine is installed. It responds to reports of omitted straps on reinstalled engines, shifting the requirement from one‑off to recurring to ensure continued electrical grounding and safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation","history":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation/history","analysis":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation/analysis","conflicts":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation/conflicts","importantCases":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation/important-cases","documents":"/api/acts/ad-cessna-210-43-amdt-1-alternator-ground-strap-installation/documents"}}