{"id":"F2006B07230","name":"AD/SWSA226/88 Amdt 1 - Fuel Boost Pump Wiring","slug":"ad-swsa226-88-amdt-1-fuel-boost-pump-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49052,"registerId":"commonwealth-F2006B07230-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/88 Amdt 1 - Fuel Boost Pump Wiring","content":"![](image.001.png)\n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/SWSA226/88 and issues the following AD under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nFairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\nAD/SWSA226/88\n\nAmdt 1\n\n  \nFuel Boost Pump Wiring 4/2004\n\nApplicability: All Model SA226 and SA227 aeroplanes.\n\nRequirement: 1. If not previously accomplished in accordance with CASA Letter F92/0725, dated 1 October 2000, or CAA(NZ) Emergency Airworthiness Directive DCA/SA226/42 remove each fuel boost pump and inspect the wiring for any sign of exposed wires, chafing or electrical arcing.\n\n    2. If any exposed wire, chaffing or arcing is evident repair or replace the wiring in accordance with either the airframe manufacturer’s instructions or an approved repair scheme.\n\nNote 1: Before removal of the boost pumps it is necessary to defuel the tank. For the initial inspection, fuel boost pumps should not be used to transfer the fuel out of the tank to be inspected.\n\nNote 2: Following each inspection reinstall the boost pumps in accordance with the airframe manufacturer’s maintenance manual ensuring that adequate clearance exists between the boost pump wiring and the fuel check valves.\n\n    3. Forward the results from the initial inspection, both positive or negative, to CASA as follows:\n\nBy Mail Section Head - Systems Certification Standards Branch Civil Aviation Safety Authority GPO Box 2005\n\nCANBERRA ACT 2601\n\nBy Facsimile (02) 6217 1914\n\nCompliance: For Requirement 1 - Within three days from the effective date of this Directive and thereafter on any occasion a fuel boost pump is removed until the boost pump wiring is protected in accordance with AD/SWSA 226/94.\n\nFor Requirement 2 \\- Before further flight.\n\nFairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\nAD/SWSA226/88 Amdt 1 (continued)\n\nFor Requirement 3 \\- Within seven days after the effective date of the original issue of this Directive.\n\nThis Amendment becomes effective on 15 April 2004.\n\nBackground: The CAA(NZ) has advised that six SA227-AC aeroplanes have been inspected and found to have evidence of chafing to either the inboard or outboard fuel boost pump wiring. In one case evidence of electrical arcing was found on the fuel check valve located immediately above the pump. Subsequent to this advice three Australian aeroplanes have been found to have chafed fuel boost pump wiring.\n\nThe original issue of this Directive required initial and repetitive inspections of the fuel boost pump wiring to detect chafing and, if necessary, repair or replacement of any damaged wiring. These actions were intended to prevent possible electrical arcing in the fuel tank and possible fire/explosion in the fuel tank.\n\nThis amendment introduces a terminating action to the repetitive inspection requirements.\n\nThe original issue of this Airworthiness Directive became effective on 11 September 2000.\n\n![Signature of James Coyne Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nJames Coyne\n\nDelegate of the Civil Aviation Safety Authority 5 March 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 24 March 2004.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":true,"description":"Yes. The original AD required initial and repetitive inspections; this amendment adds a terminating action to the repetitive inspection requirements, altering the long‑term compliance burden by providing an end‑point once the terminating corrective action is accomplished. Applicability (all SA226/SA227) and the safety objective (prevent arcing/fire) remain unchanged."},"complexity_factors":["Wide applicability: applies to all SA226 and SA227 aeroplanes (broad operator coverage).","Multiple required actions: inspection, repair/replace, reinstallation per manufacturer, and administrative reporting (Requirement 1–3).","Safety-critical procedures: requires defuelling before pump removal and forbids using boost pumps to transfer fuel during initial inspection (Note 1).","Short compliance timelines: initial inspection within three days; repairs must be done before further flight; reporting within seven days of original issue (Compliance).","Repair standard discretion: repairs must follow manufacturer’s instructions or an approved repair scheme, requiring authorised documentation/approval (Requirement 2).","Operational constraint on reinstallation: ensure adequate clearance between wiring and fuel check valves (Note 2).","Regulatory linkage: revokes earlier AD and references prior CASA/CAA(NZ) letters and ADs, requiring operators to track multiple instruments.","Introduction of a terminating action to repetitive inspections changes long‑term compliance planning (Background)."],"plain_english_summary":"This directive applies to all Fairchild (Swearingen) SA226 and SA227 aeroplanes. It requires operators to inspect fuel boost pump wiring for exposed wires, chafing or arcing, to repair or replace faulty wiring before further flight, and to forward inspection results to CASA. It requires defuelling before pump removal and sets short deadlines for inspection and reporting. The stated aim is to prevent electrical arcing and possible fuel‑tank fire/explosion; compliance shifts inspection, repair and reporting costs and maintenance disruption to aircraft operators."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose — addressing fuel boost pump wiring safety in SA226/SA227 aircraft. The amendment introduces a terminating action (allowing repetitive inspections to end once proper protection is installed) but does not expand beyond the original safety concern or aircraft types covered."},"complexity_factors":["Short, single-purpose document focused on one specific mechanical issue","Only 3 main requirements with clear conditional logic (if/then structure)","Minimal cross-referencing — only references to one prior CASA letter, one New Zealand directive, and one other Australian AD","Straightforward compliance timeline (3 days, 7 days, before flight)","Limited defined terms — only standard aviation terminology used without extensive definitions section","Single applicability criterion (all Model SA226 and SA227 aeroplanes)"],"plain_english_summary":"This AD requires owners/operators of Fairchild (Swearingen) SA226/SA227 aeroplanes to inspect fuel boost pump wiring for chafing, repair or replace damaged wiring before flight, and report results to CASA within 7 days. Initial inspections are due within 3 days. The rule prevents fuel‑tank fires from wiring arcing; the amendment adds a way to permanently remove repetitive inspections once approved wiring protection is installed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring","history":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring/history","analysis":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring/analysis","conflicts":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring/conflicts","importantCases":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring/important-cases","documents":"/api/acts/ad-swsa226-88-amdt-1-fuel-boost-pump-wiring/documents"}}