{"id":"F2006B08146","name":"AD/CESSNA 310/19 Amdt 3 - Fuel System - Placards","slug":"ad-cessna-310-19-amdt-3-fuel-system-placards","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115306,"registerId":"commonwealth-F2006B08146-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 310/19 Amdt 3 - Fuel System - Placards","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)  \nCessna 310 Series Aeroplanes\n\nAD/CESSNA 310/19\n\nAmdt 3\n\n  \nFuel System \\- Placards 1/70\n\nApplicability: All model 310, 310A, B, C, D, E and F with S/Nos. 35000 to 39299 and 310-0001 to 310-0156.\n\nRequirement: 1. On all models a placard reading “Operation With Less Than Five (5) Gallons of Fuel In Each Main Tank is Prohibited”. Usable Fuel In Each Tank Is 45 Gallons\" is to be placed in full view of the pilot and as near as possible to the main fuel quantity indicator.\n\n    2. On all models a placard reading “Maintain Power Within Green Arcs During Descent” is to be placed in full view of the pilot and as near as possible to the manifold pressure gauge.\n\nNote: The operator may make and certify for the installation of the above placards. Letters of one eighth inch minimum height shall be used.\n\n    3. Cessna SL ME69-19. Compliance: Forthwith.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 3 to an existing Airworthiness Directive, but the scope remains tightly focused on its original purpose: mandating specific cockpit placards for fuel system and power management safety on defined Cessna 310 variants. There is no evidence of scope creep into unrelated aircraft systems or operational areas."},"complexity_factors":["Very short document (under 200 words)","Only 3 operative requirements with minimal conditional logic","Single defined applicability clause (specific aircraft models and serial numbers)","No cross-references to other legislation beyond a single service letter reference","Simple, direct language with no nested exceptions or sub-delegations"],"plain_english_summary":"This is an **Airworthiness Directive** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for specific Cessna 310 aircraft.\n\n**What it does:**\nIt requires owners and operators of certain Cessna 310 twin-engine planes to install two warning placards (signs) in the cockpit:\n\n- **Fuel warning:** A sign telling pilots they cannot fly with less than 5 gallons of fuel in each main tank, and confirming each tank holds 45 gallons of usable fuel. This must go near the fuel gauge where the pilot can clearly see it.\n- **Power warning:** A sign instructing pilots to \"Maintain Power Within Green Arcs During Descent.\" This must go near the manifold pressure gauge (the instrument showing engine power).\n\n**Who it affects:**\nOwners and operators of Cessna 310, 310A, 310B, 310C, 310D, 310E, and 310F models with specific serial numbers (35000–39299 and 310-0001 to 310-0156).\n\n**Why it matters:**\nThese placards address known safety risks. The fuel warning prevents fuel starvation (running out of usable fuel due to sloshing or pickup issues at low fuel levels). The power warning prevents engine damage or failure during descent. The directive says compliance is required \"forthwith\" — meaning immediately, without delay.\n\n**Practical note:**\nOperators can make and certify these placards themselves (they don't need a specialist mechanic), but the letters must be at least 1/8 inch tall. The directive also references a Cessna Service Letter (SL ME69-19) for additional technical guidance."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The instrument is titled and presented as Amendment 3 to AD/CESSNA 310/19 (Amdt 3). That indicates this text is an amendment to a prior AD. The text itself sets out the current applicability (specific models and serial numbers) and the placard requirements but does not state within this document what the prior scope was or precisely how the scope changed. The AD requires immediate compliance for the specified placarding on the listed serial-numbered aeroplanes. (Header; Applicability; Requirement 1–2; Compliance)"},"complexity_factors":["Narrow applicability to specific Cessna 310 serial number ranges (operators must check serial numbers). (Applicability)","Precise wording required for two placards, including numeric fuel limits and exact phrasing. (Requirement 1–2)","Specified placement requirement: \"in full view of the pilot and as near as possible\" to two named indicators (fuel quantity indicator and manifold pressure gauge), which leaves limited installer judgement. (Requirement 1–2)","Minimum letter height mandated (one eighth inch), a small technical formatting requirement. (Note)","Immediate compliance deadline ('Forthwith') creates timing pressure for operators. (Compliance)","Operator allowed to make and certify the placard installation (reduces administrative complexity but requires internal certification records). (Note)","Reference to a Cessna service letter (Cessna SL ME69-19) for additional detail may require consultation of an external document. (Note)"],"plain_english_summary":"This AD requires operators of specified Cessna 310-series aeroplanes (serials 35000–39299 and 310‑0001–310‑0156) to install, forthwith, two cockpit placards with prescribed wording and minimum letter size near the fuel and manifold pressure instruments. Operators are responsible for producing, installing and certifying the placards (self-certification permitted). The measure directly alters pilot-facing information on fuel limits and descent power settings and places compliance cost and certification obligation on operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards","history":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards/history","analysis":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards/analysis","conflicts":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards/conflicts","importantCases":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards/important-cases","documents":"/api/acts/ad-cessna-310-19-amdt-3-fuel-system-placards/documents"}}