{"id":"F2006B07132","name":"AD/S-PUMA/9 - Electrical Power System","slug":"ad-s-puma-9-electrical-power-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48952,"registerId":"commonwealth-F2006B07132-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/S-PUMA/9 - Electrical Power System","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nEurocopter AS 332 (Super Puma) Series Helicopters\n\nAD/S-PUMA/9 Electrical Power System 11/92\n\nApplicability: All AS 332 helicopters, versions C, C1, L and L1, not modified per AMS 332A\n\n07.26.044 or by kit No 332A.08.8133.\n\nRequirement: Action in accordance with Eurocopter France Service Bulletin AS 332 No 24.20 dated 2 June 1992.\n\nNote: DGAC AD 92-143-048(B) dated 8 July 1992 refers.\n\nCompliance: Within 300 hours time in service or three calendar months from 15 October 1992, whichever occurs first.\n\nBackground: Eurocopter advises that that a pressurisation system hydraulic line was perforated, following continued interference with a wire harness. Compliance with this Directive removes the possibility of the wire harness interference with and subsequent failure of the hydraulic line.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive's scope, as stated, is limited to preventing wire-harness interference with a pressurisation hydraulic line on specified AS 332 variants that have not already received the listed modifications. The instrument requires implementation of the manufacturer’s Service Bulletin within a specific flight-hour or calendar-time window. There is no indication in the text that the directive broadens or narrows its original safety remit beyond that stated purpose (removal of harness interference risk). (Applicability; Requirement; Compliance; Background)"},"complexity_factors":["Narrow applicability limited to specified AS 332 versions and to aircraft not modified by two specific modification references (Applicability).","Technical compliance depends on following an external Eurocopter Service Bulletin rather than detailed steps in the AD (Requirement).","Binary compliance deadline with two alternative measures (time-in-service hours or calendar months) requires operators to track both metrics (Compliance).","Work is technical and requires qualified maintenance personnel and parts, creating operational scheduling and cost burdens for operators (Requirement).","Cross-reference to a foreign authority AD (DGAC) and manufacturer documentation means regulatory interpretation may rely on external documents (Note)."],"plain_english_summary":"What this instrument changes, mechanically\n\n- It requires certain Eurocopter AS 332 (Super Puma) helicopters (versions C, C1, L and L1) that have not already been modified per AMS 332A07.26.044 or kit No 332A.08.8133 to have the electrical/wire-harness and pressurisation hydraulic-line arrangement altered in accordance with Eurocopter France Service Bulletin AS 332 No 24.20 dated 2 June 1992. (Applicability; Requirement)\n\nWhy the change is required (the stated reason)\n\n- Eurocopter reported that a pressurisation-system hydraulic line had been perforated after continued interference from a nearby wire harness. The Service Bulletin and this directive are intended to remove the possibility of that interference and the resulting hydraulic-line failure. (Background; Requirement)\n\nWho this affects and who decides\n\n- Affected: registered owners and operators of AS 332 C, C1, L and L1 helicopters that have not been modified by the specific modification or kit listed. (Applicability)\n- Decision-maker: the Civil Aviation Safety Authority (via this airworthiness directive) requires compliance with the named Eurocopter Service Bulletin. (Requirement)\n\nWhat operators must do and when\n\n- Operators must carry out the actions described in Eurocopter Service Bulletin AS 332 No 24.20 (dated 2 June 1992). The work is mandatory for affected helicopters. (Requirement)\n- The deadline is the earlier of within 300 hours time-in-service or within three calendar months from 15 October 1992. (Compliance)\n\nWho pays and the compliance burden\n\n- The cost of implementing the Service Bulletin falls to the helicopter owner/operator: parts, labour, and aircraft downtime. (Requirement; Compliance)\n- The work is technical and will require personnel and facilities able to perform the procedures in the Service Bulletin. That creates a compliance burden on operators that do not have in-house capability and must contract maintenance providers. (Requirement)\n\nMechanisms, incentives and trade-offs\n\n- Safety mechanism: physical separation or re-routing (as specified by the Service Bulletin) is intended to eliminate repeated contact between the wire harness and the hydraulic line, removing the perforation risk. (Background; Requirement)\n- Incentives: operators reduce their exposure to the safety risk by complying. Non-compliance preserves a safety risk and may expose operators to regulatory enforcement and continued risk of hydraulic failure. (Background; Requirement)\n- Concentrated benefits/costs: the immediate benefits (reduced risk of hydraulic-line perforation) are concentrated on each complying operator and their passengers/clients; costs (modification labour, parts, downtime) are borne by those operators. Suppliers and maintenance providers that supply parts or perform the work obtain increased business from compliance. (Requirement; Compliance)\n- Substitution effects: helicopters already modified per the listed modification or kit are excluded from the requirement; such prior modifications substitute for the Service Bulletin action. (Applicability)\n\nImplementation risk and enforcement\n\n- Implementation requires following the technical steps in the Eurocopter Service Bulletin; improper or incomplete work would not eliminate the stated interference risk. (Requirement)\n- The AD sets a firm compliance timeframe (300 flight hours or three months from 15 October 1992), so operators must schedule the work within that window or remain non-compliant. (Compliance)\n\nNotes and references in the instrument\n\n- The AD cross-references a DGAC (French authority) AD and the Eurocopter Service Bulletin; the required remedial work is defined by that Service Bulletin rather than in detail in the directive text. (Note; Requirement)\n\nSummary sentence\n\n- In short: owners/operators of the named AS 332 helicopter versions who have not already installed the specified modification must have the aircraft altered per Eurocopter Service Bulletin AS 332 No 24.20 to stop a wire harness from contacting and potentially perforating a pressurisation hydraulic line, and they must do so within the stated flight-hour or calendar-time deadline. (Applicability; Requirement; Compliance; Background)"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating a single safety modification."},"complexity_factors":["Single, specific technical requirement referencing an external document (Eurocopter Service Bulletin)","Limited applicability scope (4 specific helicopter versions with 2 exemption conditions)","Simple compliance deadline structure (dual trigger: flight hours or calendar time)","No nested definitions, cross-references to other legislation, or conditional exceptions","Short document (approximately 150 words) with clear purpose and background explanation"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or inspections on aircraft.\n\n**What it does:**\nOrders owners and operators of certain **Eurocopter AS 332 Super Puma helicopters** to fix a dangerous wiring problem. A wire harness (a bundle of electrical wires) has been rubbing against and damaging a hydraulic line that maintains pressure in the aircraft's systems. If left unfixed, this could cause the hydraulic line to fail, potentially leading to loss of aircraft control.\n\n**Who must comply:**\n- All AS 332 helicopters, specifically versions C, C1, L, and L1\n- **Unless** the helicopter has already been modified using specific Eurocopter service kits (AMS 332A 07.26.044 or kit No 332A.08.8133)\n\n**What action is required:**\nFollow the repair instructions in **Eurocopter France Service Bulletin AS 332 No 24.20** (dated 2 June 1992). This bulletin contains the technical steps to prevent the wire harness from interfering with the hydraulic line.\n\n**When it must be done:**\nWithin **300 flight hours** OR **3 months** from 15 October 1992 — whichever comes first.\n\n**Why it matters:**\nThis is a **flight safety issue**. Hydraulic system failure in a helicopter can be catastrophic. The directive forces operators to address a known design flaw before it causes an accident."}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-puma-9-electrical-power-system","history":"/api/acts/ad-s-puma-9-electrical-power-system/history","analysis":"/api/acts/ad-s-puma-9-electrical-power-system/analysis","conflicts":"/api/acts/ad-s-puma-9-electrical-power-system/conflicts","importantCases":"/api/acts/ad-s-puma-9-electrical-power-system/important-cases","documents":"/api/acts/ad-s-puma-9-electrical-power-system/documents"}}