{"id":"F2006B02613","name":"AD/B717/12 - Auxiliary Hydraulic Pump Electric Motor","slug":"ad-b717-12-auxiliary-hydraulic-pump-electric-motor","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41929,"registerId":"commonwealth-F2006B02613-current","compilationNumber":null,"startDate":"2026-04-01","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\nBoeing 717 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B717/12 Auxiliary Hydraulic Pump Elec","sectionType":"part","heading":"AD/B717/12 Auxiliary Hydraulic Pump Electric Motor 3/2004","content":"# AD/B717/12 Auxiliary Hydraulic Pump Electric Motor 3/2004\n\nApplicability: Model 717-200 aeroplanes, manufacturer's fuselage numbers 5002 through 5200 inclusive.\n\nRequirement: 1. Perform an inspection of the electric motor of the auxiliary hydraulic pump for electrical resistance, continuity and mechanical rotation, together with the associated wiring resistance/voltage, in accordance with Boeing Alert Service Bulletin (ASB) 717-29A0005 dated 31 July 2002.\n\n    2. If any pump motor fails the Requirement 1 inspection replace the failed auxiliary hydraulic pump with a serviceable pump in accordance with ASB 717-29A0005.\n\n    3. If any wiring fails the Requirement 1 inspection, troubleshoot and repair the wiring in accordance with ASB 717-29A0005.\n\nNote: FAA AD 2004-01-15 Amdt 39-13429 refers.\n\nCompliance: For Requirement 1 - Prior to the accumulation of 3,000 total hours time in service (TIS) or within 12 months after the effective date of this Directive, whichever occurs later, and thereafter repeat the inspection at intervals not to exceed 5,000 hours TIS.\n\nFor Requirements 2 and 3 \\- Before further flight after the Requirement 1 inspection. This Airworthiness Directive becomes effective on 18 March 2004.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD appears to be a targeted corrective measure addressing a specific unsafe condition on a narrowly defined subset of the Boeing 717-200 fleet (fuselage numbers 5002–5200). It does not broaden the regulatory scope beyond remediation of that identified issue: it prescribes inspection and corrective actions only for the specified components and aircraft, references the manufacturer service bulletin for the technical method, and does not introduce additional regulatory subjects or unrelated obligations."},"complexity_factors":["Short text with 3 discrete technical requirements (Requirement 1–3)","Single-model applicability but limited to a specific serial-number range (fuselage numbers 5002–5200)","Conditional timing: initial inspection before 3,000 hours TIS OR within 12 months after effective date, whichever is later","Recurring inspection interval specified (repeat every 5,000 hours TIS)","Cross-references to external technical material (Boeing ASB 717-29A0005) and FAA AD 2004-01-15, requiring consult of other documents for procedural detail","Immediate corrective-action requirement (replace/repair) with 'before further flight' compliance, adding operational scheduling constraints"],"plain_english_summary":"**What this directive does (mechanically)\n\n- Requires operators of certain Boeing 717-200 aeroplanes to inspect the electric motor of the auxiliary hydraulic pump and its associated wiring for: electrical resistance, electrical continuity, and mechanical rotation. (Requirement 1)\n- If a pump motor fails that inspection, it must be replaced with a serviceable unit. (Requirement 2)\n- If wiring fails the inspection, it must be troubleshot and repaired. (Requirement 3)\n- The inspections must follow Boeing Alert Service Bulletin (ASB) 717-29A0005 dated 31 July 2002, and any replacements/repairs must also be carried out per that ASB.\n\n**Who is affected\n\n- Operators of Boeing 717-200 aeroplanes with manufacturer fuselage numbers (serial numbers) 5002 through 5200 inclusive. That is the only class of aircraft to which this directive applies (Applicability).\n\n**When the work must be done\n\n- Do the first inspection before the aeroplane reaches 3,000 total hours time in service (TIS) or within 12 months after this directive’s effective date, whichever is later. After the first inspection, repeat the inspection at intervals not more than 5,000 hours TIS. (Compliance for Requirement 1)\n- If an inspection finds a failed motor or failed wiring, replace or repair the item before the aeroplane’s next flight. (Compliance for Requirements 2 and 3)\n\n**Why it matters (official purpose and practical effect)\n\n- Official purpose: the regulator issued the directive to correct an identified unsafe condition in the auxiliary hydraulic pump electric motor on the specified aeroplanes (the AD text states the delegate considered the actions necessary to correct the unsafe condition). The directive cross-references FAA AD 2004-01-15 and Boeing ASB 717-29A0005 as the technical instructions to follow.\n\n- Practical effects and trade-offs:\n  - Who pays: aircraft operators bear the direct costs — labour to perform inspections, potential downtime, parts and replacement pumps, and wiring repair costs.\n  - Behavioural changes: operators will schedule the mandated inspections into their maintenance programs, may increase spares inventory for the auxiliary pump motor, and may adjust aircraft availability while work is performed.\n  - Compliance burden: the directive imposes a recurring inspection obligation (every 5,000 hours TIS after the initial check) and an immediate replacement/repair requirement if faults are found. The inspection and any repairs must be done in accordance with the referenced Boeing ASB, which prescribes the technical procedure.\n  - Implementation risk: failure to comply has regulatory consequences and leaves the aircraft uncertified for continued operation; conversely, strict compliance reduces the risk of motor/wiring failure but increases maintenance costs and potential aircraft downtime.\n  - Market effects: because the applicability is narrow (specified serial-number range), the directive affects a limited subset of the 717 fleet; this concentrates costs on operators of those specific aircraft but is unlikely to materially affect market-wide competition or prices for air services except to the extent individual operators pass costs on to customers.\n\n**References and technical direction\n\n- The inspections and any corrective action must be performed in accordance with Boeing Alert Service Bulletin 717-29A0005 (31 July 2002). The AD also notes FAA AD 2004-01-15. These cross-references mean the ASB supplies the detailed step-by-step test and repair procedures; the AD mandates compliance with that ASB.\n\n**Net summary\n\nThis Airworthiness Directive mandates repeated inspection and immediate correction (replacement or repair) of the auxiliary hydraulic pump electric motor and its wiring on Boeing 717-200 aircraft with fuselage numbers 5002–5200. The regulator’s stated purpose is to correct an unsafe condition; the measurable impacts are inspection/repair costs, possible downtime for affected aircraft, and an operational requirement to incorporate the inspection into ongoing maintenance schedules. (See Requirements 1–3 and the Compliance section.)"},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope: addressing a specific unsafe condition in the auxiliary hydraulic pump electric motor on Boeing 717-200 aircraft. The requirements remain tightly focused on inspection and remediation of this single component."},"complexity_factors":["Single, clearly defined applicability (one aircraft model, specific serial number range)","Only 3 numbered requirements with straightforward conditional logic (if fail, then replace/repair)","No defined terms section or interpretation provisions","Single cross-reference to FAA AD for background context only","Clear compliance timeline with simple alternative triggers (hours OR date)","No nested exceptions or complex procedural conditions"],"plain_english_summary":"This CASA safety order requires owners and operators of Boeing 717-200s (fuselage numbers 5002–5200) to inspect the electric motor and wiring for the auxiliary hydraulic pump, verify resistance/continuity and rotation, and replace the pump or repair wiring if defects are found. \n\nIt targets maintenance engineers because hydraulic failure can endanger flight controls, gear, and brakes. Initial inspection is before 3,000 flight hours or within 12 months of March 2004, then every 5,000 hours; any defect must be fixed before the next flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor","history":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor/history","analysis":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor/analysis","conflicts":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor/conflicts","importantCases":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor/important-cases","documents":"/api/acts/ad-b717-12-auxiliary-hydraulic-pump-electric-motor/documents"}}