{"id":"F2009L01946","name":"AD/AA-1/5 - Carburettor - Inspection - CANCELLED","slug":"ad-aa-1-5-carburettor-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":79092,"registerId":"commonwealth-F2009L01946-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Gulfstream (Grumman American/ American A","sectionType":"division","heading":"Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes","content":"### Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes\n\n| AD/AA-1/5 | Carburettor - Inspection | 6/2009 |\n| --------- | ------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                                     |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 4 June 2009.                                                                                                                                                                                                                                                                                           |\n| Background:  | This AD, issued in 1972, required inspection of the carburettor for fuel stains in accordance with American Aviation SB No. 123 to ascertain if cracking of the boss inside the carburettor fuel bowl had occurred. The AD compliance was forthwith. As all aircraft would have been inspected, this AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n24 April 2009","sortOrder":0},{"sectionNumber":"AD/AA-1/5","sectionType":"part","heading":"AD/AA-1/5","content":"## AD/AA-1/5","sortOrder":1},{"sectionNumber":"Carburettor - Inspection","sectionType":"part","heading":"Carburettor - Inspection","content":"## Carburettor - Inspection","sortOrder":2},{"sectionNumber":"6/2009","sectionType":"part","heading":"6/2009","content":"## 6/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1075},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument simply terminates an existing directive without expanding or altering its original scope. The legislation is sunsetting as intended once its purpose (ensuring fleet-wide inspections) has been fulfilled."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation","No conditional logic or exceptions","Purely administrative/remedial instrument"],"plain_english_summary":"This document **cancels an old aircraft safety rule**.\n\n**What it was:** Back in 1972, the aviation regulator required owners of specific light aircraft (Gulfstream/Grumman American/ American Aviation AA-1 series) to inspect their engine carburettors for fuel leaks caused by cracks in the fuel bowl.\n\n**What this does:** It officially scraps that inspection requirement effective 4 June 2009.\n\n**Why:** The original rule required immediate compliance ('forthwith'), and 37 years is more than enough time for every affected aircraft to have been inspected. Since the safety issue has been addressed across the fleet, the rule is no longer needed.\n\n**Who cares:** Owners and maintenance crews of these specific aircraft models no longer need to perform this particular carburettor check."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled","history":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled/history","analysis":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled/analysis","conflicts":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled/important-cases","documents":"/api/acts/ad-aa-1-5-carburettor-inspection-cancelled/documents"}}