{"id":"F2006B06100","name":"AD/PC-12/37 - Fuel Boost Pump Wiring","slug":"ad-pc-12-37-fuel-boost-pump-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46842,"registerId":"commonwealth-F2006B06100-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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\nPilatus PC-12 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/PC-12/37 Fuel Boost Pump Wiring 9/200","sectionType":"part","heading":"AD/PC-12/37 Fuel Boost Pump Wiring 9/2003 TX","content":"# AD/PC-12/37 Fuel Boost Pump Wiring 9/2003 TX\n\nApplicability: All PC-12 and PC-12/45, Manufacturers Serial Numbers 101 through 520 inclusive, with fuel boost pumps Part Number (P/N) 968.84.11.401, 968.84.11.403 or 968.84.11.404 installed.\n\nRequirement: 1. Insert Temporary Revision No. 7 or No. 37, as applicable, into the Australian Aircraft Flight Manual (AFM) (Pilatus PC-12 Pilots Operating Handbook, Report No 02211 for PC-12/45 aeroplanes and Report No. 01973-001 for PC-12 aeroplanes).\n\n    2. Insert Pilatus PC-12 Aircraft Maintenance Manual Temporary Revision (AMM TR) No. 12-03 (AMM 12-10-01) and AMM TR No. 28-02 (AMM 28-20-04) in the applicable AMM section.\n\n    3. Perform an inspection to determine the P/N of the installed fuel boost pump.\n\n    4. If, as result of the Requirement 3 inspection, a fuel boost pump with P/N 968.84.11.401 is found installed, replace the pump with a pump modified to the latest standard.\n\n    5. If, as result of the Requirement 3 inspection, a fuel boost pump with P/N 968.84.11.403 or 968.84.11.404 is found installed, inspect the fuel pump leads for defects in accordance with Pilatus PC-12 Service Bulletin 28-011, Revision 1, dated 11 July 2003.\n\n    6. If, as a result of the Requirement 5 Inspection, any defects are found replace the fuel boost pump with a fuel pump modified to the latest standard.\n\n    7. If, as a result of the Requirement 5 Inspection, no defects are found, modify the fuel boost pumps P/N 968.84.11.403 or 968.84.11.404 by installing lead protection using spiral wrap and then re-identify the fuel pump by adding the suffix letter “B” adjacent to the serial number on the fuel pump identification plate. Both actions are to be carried out in accordance with the Accomplishment Instructions of SB 28-011 Revision 1.\n\n    8. Remove Temporary Revision No. 7 or No. 37, as applicable, from the AFM.\n\n    9. Fuel boost pumps with P/N 968.84.11.401 may not be installed on any PC-12 series aeroplane as a replacement part.","sortOrder":1}],"analysis":{"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD confines its scope to Pilatus PC‑12/PC‑12/45 aircraft serial numbers 101–520 with fuel boost pump P/Ns 968.84.11.401, .403 or .404 (Applicability). It prescribes inspections, conditional replacements or modifications, and prohibits installing P/N 968.84.11.401 as a replacement (Requirements 3–9). The instrument does not extend obligations beyond the listed airframes and part numbers, so the scope has not been broadened beyond its stated applicability."},"complexity_factors":["Targeted applicability by airframe serial numbers and specific pump part numbers narrows but adds detail to compliance scope (Applicability).","Multiple administrative actions: temporary AFM and AMM revisions must be inserted and later removed (Requirement 1, 2, 8) increasing record‑keeping burden.","Conditional workflow based on inspection outcomes: different steps for P/N 968.84.11.401 vs 968.84.11.403/404 (Requirements 3–7) creates branching compliance paths.","Reliance on external technical material: inspections and modifications are carried out in accordance with Pilatus Service Bulletin 28‑011 Revision 1 and AMM TRs, creating dependence on vendor instructions (Requirements 2, 5, 7).","Physical modification and re‑identification requirement (spiral wrap and adding suffix “B”) introduces parts, tooling and maintenance skills needs (Requirement 7).","Prohibition on installing a specific P/N as replacement creates supply/parts constraints for operators and maintenance organisations (Requirement 9).","Potential direct costs to operators for parts replacement, labour and downtime; indirect costs from parts sourcing and administrative compliance.","Low administrative discretion in the AD text: actions and outcomes are prescriptive, but technicians must interpret and implement service bulletin instructions."],"plain_english_summary":"This AD requires operators of Pilatus PC‑12 and PC‑12/45 serial numbers 101–520 with certain fuel boost pumps to update manuals, inspect pump part numbers and wiring, and then replace or modify pumps per Pilatus service instructions. It also forbids re‑installing pump P/N 968.84.11.401 as a replacement. It affects aircraft owners, operators and maintenance organisations, who must carry out and pay for inspections, modifications, re‑identification and record updates to comply with the referenced service bulletin."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope: addressing a specific unsafe wiring condition in specific fuel boost pumps on specific Pilatus PC-12 aircraft serial numbers. The requirements follow the standard AD structure (applicability, requirement, compliance) without expansion into unrelated operational areas."},"complexity_factors":["Multiple conditional branches (Requirements 4, 5, 6, 7 create a decision tree based on inspection results)","Cross-references to external technical documents (Service Bulletin 28-011 Revision 1, specific Aircraft Maintenance Manual Temporary Revisions)","Specific part number identification required (three different P/Ns with different treatment pathways)","Dual manual update requirements (AFM Temporary Revisions No. 7 or 37 depending on aircraft model)","Specific technical modification instructions (spiral wrap installation, re-identification marking with suffix \"B\")","Prohibition clause (Requirement 9) creating an absolute ban on future use of P/N 968.84.11.401"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Pilatus PC‑12 and PC‑12/45 (serials 101–520) to inspect fuel boost pumps with part numbers 968.84.11.401, .403, or .404 for wiring defects. Model 401 must be replaced and is banned as a future replacement; 403/404 require wiring inspection, replacement if defective, or protective wrap and a “B” ID plate if serviceable. Temporary manual changes are mandated until compliance. \n\nThe goal is to prevent pump wiring failure that could cause in‑flight engine loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring","history":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring/history","analysis":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring/analysis","conflicts":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring/conflicts","importantCases":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring/important-cases","documents":"/api/acts/ad-pc-12-37-fuel-boost-pump-wiring/documents"}}