{"id":"F2006L03597","name":"AD/PHZL/42 Amdt 5 - Propeller Feather Assist Spring Kit - CANCELLED","slug":"ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":61144,"registerId":"commonwealth-F2006L03597-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PHZL/42 Amdt 5 - Propeller Feather Assist Spring Kit - CANCELLED","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: AIRCRAFT\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\n \n\nAIRWORTHINESS DIRECTIVE\n\nOn the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/PHZL/42 Amdt 5.\n\n### Propellers - Variable Pitch - Hartzell\n\n| AD/PHZL/42 Amdt 5 | Propeller Feather Assist Spring Kit | 12/2006 |\n| --- | --- | --- |\n\n\n \n\n| Requirement: | CANCELLED. |\n| --- | --- |\n|  | This AD is cancelled on 23 November 2006. |\n| Background: | The requirements of this AD are now incorporated in Hartzell Overhaul Manual 117. |\n\n\n![](image.001.png)\n\nJames Coyne  Delegate of the Civil Aviation Safety Authority\n\n12 October 2006\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3662},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The directive has shifted from imposing specific airworthiness requirements (installation/inspection of spring kits) to complete cancellation, transferring all compliance obligations to the manufacturer's overhaul manual."},"complexity_factors":["Single operative provision (cancellation)","No definitions section","No conditional logic or exceptions","Only references one external technical document"],"plain_english_summary":"This **Airworthiness Directive (AD)** removes a safety rule for aircraft with **Hartzell variable-pitch propellers**.\n\n**What it does:**\n*   **Cancels** the previous directive (AD/PHZL/42) that required specific actions regarding **propeller feather assist spring kits**.\n*   **Moves the requirements** into the *Hartzell Overhaul Manual 117* instead.\n*   Takes effect on **23 November 2006**.\n\n**Who it affects:**\nAircraft operators, maintenance engineers, and owners of planes with Hartzell propellers that were covered by the previous rule.\n\n**Why it matters:**\nYou no longer need to follow this specific CASA directive. Instead, check the manufacturer's overhaul manual for the same safety requirements. This change simplifies compliance by using the manufacturer's standard maintenance guide as the authority."}},"importantCases":[],"_links":{"self":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled","history":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled/history","analysis":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled/analysis","conflicts":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled/conflicts","importantCases":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled/important-cases","documents":"/api/acts/ad-phzl-42-amdt-5-propeller-feather-assist-spring-kit-cancelled/documents"}}