{"id":"F2006B08273","name":"AD/CESSNA 340/28 - Auxiliary Fuel Pump Wiring Modification","slug":"ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115586,"registerId":"commonwealth-F2006B08273-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 340/28 - Auxiliary Fuel Pump Wiring Modification","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)  Cessna 340 Series Aeroplanes\n\n \n\nAD/CESSNA 340/28 Auxiliary Fuel Pump Wiring Modification 12/89\n\nApplicability: All models 340 which have been modified in accordance with Cessna Service Bulletin MEB 88-3.\n\n \n\nRequirement: Unless already accomplished, action in accordance with Cessna Service Bulletin MEB 88-3 Revision 1.\n\n \n\nNote: This Requirement does not apply to aeroplanes that have not incorporated SB MEB 88-3.\n\n \n\nCompliance: Prior to the issue of the next Maintenance Release after 31 December 1989.\n\n \n\nBackground: Compliance with the original issue of SB MEB 88-3 was not considered to warrant the issue of an Airworthiness Directive. This AD is raised to ensure that necessary features of Revision 1 are incorporated into modified aeroplanes.\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\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 AD maintains its original narrow scope. It addresses a specific wiring modification for a specific aircraft type (Cessna 340) under specific conditions (prior SB MEB 88-3 modification). The background explicitly confirms the directive was created solely to ensure Revision 1 features are incorporated, with no expansion beyond this original safety purpose."},"complexity_factors":["Single, clearly defined applicability criterion (aircraft modified per SB MEB 88-3)","Straightforward requirement: comply with one referenced external document (Cessna Service Bulletin MEB 88-3 Revision 1)","Single explicit exemption (aircraft without the original SB MEB 88-3 modification)","Simple compliance deadline tied to a fixed date and routine maintenance event","No defined terms section, no cross-references to other legislation, no conditional logic or nested exceptions","Total length: approximately 150 words of substantive content"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Cessna 340 aeroplanes that previously incorporated Cessna Service Bulletin MEB 88-3 to update the auxiliary fuel pump wiring to Revision 1 of that bulletin. Aircraft not modified under the original SB are not affected. The mandate ensures required safety improvements are installed and must be done before the next Maintenance Release issued after 31 December 1989."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The AD makes mandatory the incorporation of Revision 1 features for aeroplanes that had already implemented Service Bulletin MEB 88-3. Previously compliance with the original SB was not considered to require an AD; this instrument compels the updated wiring modification for those modified aircraft (see Background; Requirement; Applicability)."},"complexity_factors":["Limited and clear applicability: only aircraft already modified per SB MEB 88-3 are affected (Applicability).","Delegation of technical detail to an external document: AD mandates compliance with a Service Bulletin rather than prescribing procedures itself (Requirement).","Time-bound compliance tied to maintenance scheduling: deadline is the next Maintenance Release after 31 December 1989 (Compliance).","Explicit carve-out: aeroplanes that never incorporated the original SB are exempt (Note).","Administrative purpose stated in Background: AD enforces incorporation of Revision 1 features into previously modified aircraft rather than introducing new technical requirements directly (Background)."],"plain_english_summary":"This Airworthiness Directive requires Cessna 340 aeroplanes that were previously modified under Cessna Service Bulletin MEB 88‑3 to incorporate the wiring changes in Revision 1 of that Service Bulletin. It excludes aeroplanes that never adopted the original bulletin.\n\nOwners/operators of affected aircraft must complete the Revision 1 wiring modification before the next maintenance release after 31 December 1989, by following the procedures in `Cessna Service Bulletin MEB 88‑3 Revision 1` (see Requirement; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification","history":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification/history","analysis":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification/analysis","conflicts":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification/conflicts","importantCases":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification/important-cases","documents":"/api/acts/ad-cessna-340-28-auxiliary-fuel-pump-wiring-modification/documents"}}