{"id":"F2006B05162","name":"AD/CESSNA 188/27 - Fuel Quantity Placard","slug":"ad-cessna-188-27-fuel-quantity-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45280,"registerId":"commonwealth-F2006B05162-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 188/27 - Fuel Quantity Placard","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 188 (Agwagon) Series Aeroplanes\n\n \n\nAD/CESSNA 188/27 Fuel Quantity Placard 4/76\n\nApplicability: As detailed in Requirement Document.\n\n \n\nRequirement: Install fuel quantity placards as detailed in Cessna SL SE75-7 and Supplement No. 1.\n\n \n\nCompliance: 1. Model A188 with S/Nos. as detailed in Cessna SL SE75-7 within 100 hours time in service after 16 April 1976.\n\n \n\n2.    Model A188 with S/Nos. prior to 01347:\n\n \n\n(a)     If currently fitted with one or more replacement fuel cells bearing a manufacturing date of June 1973 or later -within 100 hours time in service after 16 April 1976.\n\n \n\n(b)     Concurrent with fitting one or more replacement fuel cells bearing a manufacturing date of June 1973 or later.\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":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD as printed prescribes installing fuel-quantity placards for specified Cessna 188 models/serials per Cessna SL SE75-7 and its Supplement, with compliance tied to 16 April 1976 and replacement-cell manufacturing dates. The text contains no language indicating a change from an earlier scope or an amendment to broaden/narrow applicability beyond these stated conditions."},"complexity_factors":["External-document dependence: the placard content and installation detail are specified by Cessna SL SE75-7 and Supplement No.1, requiring operators to obtain and follow another document (Requirement).","Serial-numbered applicability: the AD applies to Model A188 aircraft by serial numbers as listed in the referenced service letter, requiring record checks to determine if an individual aircraft is captured (Compliance: 1).","Multiple compliance triggers and timings: distinct triggers include 'within 100 hours TIS after 16 April 1976' and 'concurrent with fitting' replacement fuel cells, creating several pathways to compliance (Compliance: 1; 2(a); 2(b)).","Parts-date conditionality: applicability for pre-01347 serials depends on whether replacement fuel cells bear a manufacturing date of June 1973 or later, so operators must inspect part markings or records (Compliance: 2(a)–(b)).","Time-in-service metric: compliance measured in flight hours (time in service) rather than calendar days requires maintenance log verification and potentially flight-time estimation.","Historical/retroactive deadlines: the AD ties compliance to a past reference date (16 April 1976), which may complicate verification of compliance timing from existing records.","No enforcement or relief mechanism included in the text provided: the AD sets requirements and timeframes but does not specify penalties, exemptions, or an approval process within the clause set supplied."],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Cessna 188 (Agwagon) aeroplanes to install fuel-quantity placards exactly as set out in Cessna Service Letter SE75-7 and Supplement No.1. It applies to aircraft identified by certain model/serial numbers and to aircraft fitted with replacement fuel cells manufactured June 1973 or later, with compliance deadlines tied to 16 April 1976 and/or the time replacement cells are fitted."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific technical issue (fuel quantity indication) for a single aircraft model series. It has not expanded beyond its original purpose."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 2 defined applicability categories (specific serial numbers vs. pre-01347 serial numbers)","Simple conditional structure with only one level of nesting (the (a)/(b) alternatives for pre-01347 models)","Single cross-reference to external document (Cessna Service Letter SE75-7 and Supplement No. 1)","No defined terms section, no interpretation clauses, no penalty provisions","Clear, specific compliance dates and flight hour thresholds"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) for specific Cessna 188 agricultural aircraft (often called \"Agwagons\").\n\n**What it requires:** Owners and operators of affected Cessna 188 planes must install new fuel quantity placards (labels or signs) inside the aircraft. These placards show how much fuel the tanks actually hold. The exact specifications are found in a Cessna Service Letter (SL SE75-7) and its Supplement No. 1.\n\n**Who must comply:**\n- **Model A188** with specific serial numbers listed in the Cessna service letter — must install within 100 flight hours after 16 April 1976.\n- **Model A188 with serial numbers before 01347** — have two possible deadlines:\n  - If the plane already has replacement fuel cells made in June 1973 or later: install within 100 flight hours after 16 April 1976.\n  - If not yet fitted: install at the same time as fitting any replacement fuel cells made in June 1973 or later.\n\n**Why it matters:** This directive addresses a safety issue where pilots might misread how much fuel is actually available. Incorrect fuel readings in agricultural aircraft can lead to fuel exhaustion, engine failure, and accidents — particularly dangerous when flying low over crops. The placards ensure pilots have accurate, visible information about fuel capacity."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-188-27-fuel-quantity-placard","history":"/api/acts/ad-cessna-188-27-fuel-quantity-placard/history","analysis":"/api/acts/ad-cessna-188-27-fuel-quantity-placard/analysis","conflicts":"/api/acts/ad-cessna-188-27-fuel-quantity-placard/conflicts","importantCases":"/api/acts/ad-cessna-188-27-fuel-quantity-placard/important-cases","documents":"/api/acts/ad-cessna-188-27-fuel-quantity-placard/documents"}}