{"id":"F2006B03963","name":"AD/BEECH 55/12 Amdt 1 - Operating Restriction Placard","slug":"ad-beech-55-12-amdt-1-operating-restriction-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43572,"registerId":"commonwealth-F2006B03963-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/12 Amdt 1 - Operating Restriction 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)  Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes\n\n \n\nAD/BEECH 55/12\n\nAmdt 1\n\n\nOperating Restriction Placard 2/76\n\n \n\nApplicability: Models 95-55, 95-A55, 95-B55, 95-B55A, 95-B55B, 95-C55, 95-C55A, D55 and D- 55A.\n\n \n\nRequirement: 1. For aircraft fitted with auxiliary fuel tanks, install a placard on the leading edge of the fuel selector panel with the following wording:\n\n \n\n\"USE AUXILIARY FUEL TANKS AND CROSSFEED IN LEVEL FLIGHT ONLY.\"\n\n \n\n2. For aircraft not fitted with baffled fuel cells, install a placard on the leading edge of the fuel selector panel with the following wording:\n\n \n\n\"TURNING TYPE TAKE-OFFS OR TAKE-OFFS IMMEDIATELY FOLLOWING FAST TAXI TURN ARE PROHIBITED.\"\n\n \n\nCompliance: Before 1 September 1971.\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 narrow, technical airworthiness directive focused on specific placard installation requirements for defined aircraft models. As Amendment 1 to an existing AD, it appears to maintain the original scope of addressing fuel system safety through cockpit warnings. There is no evidence of scope creep; the document remains tightly focused on its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 2 operative requirements with clear conditional triggers ('For aircraft fitted with...' / 'For aircraft not fitted with...')","No defined terms section — uses plain English and aircraft model numbers only","No cross-references to other legislation or regulations","Single, absolute compliance date with no exceptions or alternative methods","Simple binary applicability test based on aircraft equipment configuration"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for specific Beechcraft Baron aircraft.\n\n**What it does:** It requires owners and operators of certain Beechcraft 55 and 58 series twin-engine planes to install warning placards (physical signs) in the cockpit:\n\n- **For planes with auxiliary fuel tanks:** A placard warning pilots to only use those extra tanks and the crossfeed fuel system when flying straight and level — not during climbs, descents, or manoeuvres.\n- **For planes without baffled fuel cells:** A placard banning \"turning type take-offs\" or take-offs immediately after fast taxi turns — meaning you can't take off while turning or right after making a sharp turn on the ground.\n\n**Who it affects:** Owners and operators of specific Beechcraft Baron models: 95-55, 95-A55, 95-B55, 95-B55A, 95-B55B, 95-C55, 95-C55A, D55 and D-55A.\n\n**Why it matters:** These placards address serious safety risks. Using auxiliary fuel tanks during manoeuvres can cause fuel starvation and engine failure. Taking off while turning (or after fast turns) can cause unporting of fuel pickups in unbaffled tanks — also leading to engine failure. The directive made these warnings mandatory by 1 September 1971.\n\n**Key point:** This is Amendment 1 (Amdt 1) of an existing directive, suggesting it updates or clarifies the original 1976 requirement."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The document is labelled as Amendment 1 to AD/BEECH 55/12 (header: Amdt 1), which indicates it modifies a prior AD. The supplied text itself sets out the current operative requirements (Applicability; Requirement 1; Requirement 2; Compliance) but does not include the earlier version or describe what was changed, so the exact nature of the scope change from the original instrument cannot be determined from the supplied text."},"complexity_factors":["Single, narrowly specified action: install placards with exact wording (Requirement 1; Requirement 2).","Clear list of affected models reduces ambiguity about applicability (Applicability).","Two conditional requirements based on aircraft configuration (presence of auxiliary tanks; absence of baffled fuel cells) require operators to determine configuration before compliance (Requirement 1; Requirement 2).","Fixed installation location and exact wording lower interpretive complexity (Requirement 1; Requirement 2).","No enforcement, inspection, or alternative compliance pathways set out in the supplied text — creates potential practical uncertainty about verification despite low technical complexity (Requirement 1; Requirement 2).","A historical fixed compliance deadline (before 1 September 1971) makes timing trivial but indicates this is an archival/legacy requirement in the supplied text (Compliance)."],"plain_english_summary":"This AD requires owners/operators of specified Beechcraft Baron models to fit fixed placards on the leading edge of the fuel selector panel that impose operating limits: one (if auxiliary tanks fitted) restricts use of aux tanks and crossfeed to level flight, and another (if not fitted with baffled fuel cells) prohibits certain turning or immediate post–fast‑taxi take‑offs. Compliance (and cost of producing/fitting the placards) falls to owners/operators by the stated deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard","history":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard/history","analysis":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard/analysis","conflicts":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard/conflicts","importantCases":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard/important-cases","documents":"/api/acts/ad-beech-55-12-amdt-1-operating-restriction-placard/documents"}}