{"id":"F2006B06445","name":"AD/R22/40 - Placard To Prohibit Pushovers","slug":"ad-r22-40-placard-to-prohibit-pushovers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47882,"registerId":"commonwealth-F2006B06445-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/40 - 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 R22 Series Helicopters\n\n \n\nAD/R22/40 Placard To Prohibit Pushovers 8/95\n\nDM\n\n \n\nApplicability: Model R22 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 R22 SB 79 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 95-11-09 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 R22 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":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive confines its effect to procedural and informational controls for Model R22 (placard plus flight‑manual limitation). It does not expand applicability to other models or mandate design/modification work, so it implements a limited operational restriction consistent with the stated safety purpose."},"complexity_factors":["Narrow applicability: applies only to Robinson R22 helicopters.","Simple required actions: install a placard and revise the flight manual (no structural or engineering changes).","Immediate compliance deadline: mandatory \"prior to further flight\" after the stated date increases urgency.","Specified compliance standards: Robinson R22 SB 79 accepted; Dymo‑tape style placards expressly disallowed, creating a measurable conformity test.","Safety‑critical subject matter: rationale relies on FAA analysis of mast‑bumping risk, raising operational stakes despite low technical complexity.","Enforcement depends on operators updating documentation and placarding; monitoring/enforcement mechanisms are not detailed in the text."],"plain_english_summary":"This airworthiness directive requires owners/operators of Robinson R22 helicopters to fit a clearly readable cockpit placard stating \"LOW-G PUSHOVERS PROHIBITED\" and to revise the flight manual to prohibit low‑G cyclic pushovers. Compliance was required before further flight after 7 June 1995. The AD cites an FAA analysis linking low‑G pushovers to mast‑bumping; owners/operators pay to fit an approved placard and update manuals, the AD names Robinson SB 79 as an acceptable means and rejects informal labels."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific identified hazard on a specific aircraft model. It has not expanded beyond its original purpose of prohibiting and warning against low-G pushover manoeuvres on Robinson R22 helicopters."},"complexity_factors":["Very short document (under 300 words)","Only 2 substantive requirements (placard installation + manual revision)","Single defined term implicitly ('low-G pushover' explained in background)","No cross-references to other legislation sections","Simple conditional logic: one applicability criterion (Model R22 helicopters)","Clear, single compliance date with no exceptions or extensions"],"plain_english_summary":"Owners and operators of Robinson R22 helicopters in Australia must install a professionally made cockpit placard reading \"LOW-G PUSHOVERS PROHIBITED\" and update the Flight Manual to include that prohibition. This mandatory safety order aims to prevent low‑G pushovers that can cause mast‑bumping and rotor loss, and must be complied with before flying again after 7 June 1995 (use of the Robinson Service Bulletin 79 placard is acceptable)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers","history":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers/history","analysis":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers/analysis","conflicts":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers/conflicts","importantCases":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers/important-cases","documents":"/api/acts/ad-r22-40-placard-to-prohibit-pushovers/documents"}}