{"id":"F2006B06472","name":"AD/R44/4 - Placard to Prohibit Pushovers","slug":"ad-r44-4-placard-to-prohibit-pushovers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47971,"registerId":"commonwealth-F2006B06472-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R44/4 - Placard to Prohibit Pushovers","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)  Robinson R44 Series Helicopters\n\n \n\nAD/R44/4 Placard to Prohibit Pushovers  8/95 DM\n\n \n\nApplicability: Model R44 helicopters.\n\n \n\nRequirement: 1. Install a placard that contains the following statement in the helicopter in clear view of the pilots. The size and location of the placard must be such that it is clearly readable by the pilots:\n\n \n\n# LOW-G PUSHOVERS PROHIBITED\n\n \n\nThe placard specified in Robinson R44 SB 6 is an acceptable means of compliance, while a Dymo tape style placard is not.\n\n \n\n2. A Flight Manual revision is required to the effect:\n\n \n\n# FLIGHT AND MANOEUVRE LIMITATIONS\n\n \n\nLow-G cyclic pushovers are prohibited\n\n \n\nNote: FAA Priority Letter AD 95-11-10 refers.\n\n \n\nCompliance: Prior to further flight after 7 June 1995.\n\n \n\nBackground: A recent FAA analysis of manufacturers data indicated that a low-G cyclic pushover manoeuvre may result in mast-bumping on the Robinson Helicopter Company R44 helicopter.\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 is a discrete, targeted safety directive addressing a specific known hazard in a specific aircraft model. It has not expanded beyond its original purpose of prohibiting low-G pushovers in Robinson R44 helicopters."},"complexity_factors":["Very short document (under 300 words)","Only 2 substantive requirements with clear, specific instructions","Single defined term: 'Applicability' limited to one helicopter model","No cross-references to other legislation beyond a note about related FAA directive","Simple compliance deadline with no conditional exceptions or nested logic","Plain language requirements ('install a placard', 'clear view of the pilots')"],"plain_english_summary":"This CASA Airworthiness Directive requires Robinson R44 owners/operators and pilots to prohibit \"low‑G pushovers\" by installing a visible placard and updating the flight manual to ban the manoeuvre. It responds to FAA findings that low‑G pushovers can cause mast‑bumping, a rotor‑destroying failure linked to fatal accidents, and thus is a mandatory safety action before the helicopter is next flown (after 7 June 1995)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive does not expand applicability beyond Model R44s; it imposes narrowly framed requirements (placard and Flight Manual wording) tied to an FAA safety finding. It mandates operator action and a compliance deadline but does not broaden model scope or operational categories (Applicability; Requirement; Compliance)."},"complexity_factors":["Limited applicability: applies only to Model R44 helicopters (Applicability).","Single prescriptive actions: requires installation of a specific placard and a Flight Manual revision (Requirement 1 & 2).","Specified means of compliance: Robinson R44 SB 6 placard accepted; Dymo tape placard explicitly not acceptable (Requirement 1).","Clear compliance deadline: \"Prior to further flight after 7 June 1995\" creates an immediate enforceable obligation (Compliance).","Safety rationale referenced to external analysis and FAA AD (Background; note referencing FAA Priority Letter AD 95-11-10).","Legal basis indicated under Civil Aviation Regulations (header: Commonwealth of Australia (Civil Aviation Regulations 1998), PART 39 - 105)."],"plain_english_summary":"Requires Robinson R44 helicopters to display a readable placard stating \"LOW-G PUSHOVERS PROHIBITED\" and to revise the Flight Manual to state \"Low‑G cyclic pushovers are prohibited.\" It affects R44 owners, operators and pilots who must fit the specified placard and update manuals before further flight after 7 June 1995; the AD cites an FAA analysis that low‑G pushovers may cause mast‑bumping."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers","history":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers/history","analysis":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers/analysis","conflicts":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers/conflicts","importantCases":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers/important-cases","documents":"/api/acts/ad-r44-4-placard-to-prohibit-pushovers/documents"}}