{"id":"F2006L03596","name":"AD/PHS/8 - Counterweight Bearing Shaft - Inspection - CANCELLED","slug":"ad-phs-8-counterweight-bearing-shaft-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":61143,"registerId":"commonwealth-F2006L03596-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Propellers - Variable Pitch - Hamilton S","sectionType":"division","heading":"Propellers - Variable Pitch - Hamilton Standard","content":"### Propellers - Variable Pitch - Hamilton Standard\n\n| AD/PHS/8 | Counterweight Bearing Shaft - Inspection | 12/2006 |\n| -------- | ---------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                    |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 November 2006.                                                                                     |\n| Background:  | This AD required hardness testing of certain counterweight bearing shafts. Those requirements have been adequately addressed. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n13 October 2006","sortOrder":0},{"sectionNumber":"AD/PHS/8","sectionType":"part","heading":"AD/PHS/8","content":"## AD/PHS/8","sortOrder":1},{"sectionNumber":"Counterweight Bearing Shaft - Inspection","sectionType":"part","heading":"Counterweight Bearing Shaft - Inspection","content":"## Counterweight Bearing Shaft - Inspection","sortOrder":2},{"sectionNumber":"12/2006","sectionType":"part","heading":"12/2006","content":"## 12/2006","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1697},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward cancellation of a specific airworthiness directive. The scope remains appropriately limited to revoking previous inspection requirements for counterweight bearing shafts on Hamilton Standard propellers, without expanding into unrelated regulatory areas."},"complexity_factors":["Single operative provision cancelling previous requirements","No defined terms or interpretation section","No conditional logic, exceptions, or procedural steps","Straightforward administrative revocation with effective date only"],"plain_english_summary":"This document cancels a previous aviation safety rule that required aircraft owners and mechanics to perform **hardness testing on counterweight bearing shafts** found in Hamilton Standard variable-pitch propellers.\n\n**What it does:**\n- **Cancels Airworthiness Directive (AD) PHS/8** effective 23 November 2006\n- Removes the legal obligation to conduct specific inspections on these propeller parts\n- States that the safety concerns which originally triggered the inspection requirement have now been \"adequately addressed\"\n\n**Who it affects:**\n- Owners and operators of aircraft fitted with Hamilton Standard variable-pitch propellers\n- Licensed aircraft maintenance engineers (LAMEs) who service these propellers\n\n**Why it matters:**\nThis directive stops a specific maintenance requirement, reducing compliance costs and inspection burden for affected aircraft operators. It indicates that the manufacturer or operational data has shown the original safety risk (likely related to shaft failure or wear) is no longer significant enough to mandate ongoing testing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled","history":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled/history","analysis":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled/analysis","conflicts":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled/important-cases","documents":"/api/acts/ad-phs-8-counterweight-bearing-shaft-inspection-cancelled/documents"}}