{"id":"F2008L01896","name":"AD/DAUPHIN/96 - CPI 503 Crash Position Indicator Components","slug":"ad-dauphin-96-cpi-503-crash-position-indicator-components","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74124,"registerId":"commonwealth-F2008L01896-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter SA 360 and SA 365 (Dauphin) S","sectionType":"division","heading":"Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters","content":"### Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters\n\n| AD/DAUPHIN/96 | CPI 503 Crash Position Indicator Components | 8/2008 TX |\n| ------------- | ------------------------------------------- | --------- |\n\n| Applicability: | AS 365 N3 helicopters, all serial numbers, if equipped with CPI 503 Crash Position Indicator (CPI) beacon components, as listed in paragraph 1.A of Eurocopter Alert Service Bulletin (ASB) AS365 No. 25.00.91 dated 26 May 2008 or later revision approved by the European Aviation Safety Agency (EASA) and fitted with either removable or fixed parts of hoist and sling installations. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement: | 1. For helicopters fitted with a hoist or a sling (ie removable parts of hoist or sling installations) - Identify the affected CPI Beacon components, as listed by serial number in paragraph 1.A of Eurocopter ASB AS365 No. 25.00.91 or later revision approved by the EASA (the referenced Eurocopter ASB), whose serial numbers are not followed by a letter “C”, and measure the bonding of affected CPI Beacon components in accordance with the instructions of paragraph 2.B.2 of the referenced Eurocopter ASB. |\n| | Note 1: H.R. Smith Service Bulletin (SB) HRS170407-2 dated 20 March 2007 is attached as Appendix 1 to the referenced Eurocopter ASB and contains the detailed instructions to accomplish the bonding measurements. |\n| | 2. If the result of the Requirement 1 bonding measurement meets the criteria specified in paragraph 3 of H.R. Smith SB HRS170407-2, mark the letter “C” after the serial number of the checked CPI Beacon components and no further action is required by this Directive. |\n| | 3. If the bonding measurement result does not meet the requirements specified in paragraph 3 of H.R. Smith SB HRS170407-2, accomplish the following actions: |\n| | a. Disengage the hoist circuit-breakers in accordance with paragraph 2.B.4.a of the referenced Eurocopter ASB or disengage the sling circuit-breakers in accordance with paragraph 2.B.4.b of the referenced Eurocopter ASB and install a placard in full view of the flight crew in accordance with paragraph 2.B.4.c of the referenced Eurocopter ASB. |\n| | b. Until replacement of the affected components with serviceable parts, operation of the hoist and the sling is PROHIBITED. |\n| | c. Replace the affected CPI beacon components with serviceable parts. |\n\n| | 4. For helicopters fitted only with fixed parts of hoist or sling installations as structural provisions - Identify the affected CPI Beacon components, as listed by serial number in paragraph 1.A of the referenced Eurocopter ASB whose serial numbers are not followed by a letter “C”, and measure the bonding of affected CPI Beacon components in accordance with the instructions of paragraph 2.B.2 of the referenced Eurocopter ASB. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| | 5. If the result of the Requirement 4 bonding measurement meets the criteria specified in paragraph 3 of H.R. Smith SB HRS170407-2, mark the letter “C” after the serial number of the checked CPI Beacon components and no further action is required by this Directive. |\n| | 6. If the Requirement 4 bonding measurement result does not meet the requirements specified in paragraph 3 of H.R. Smith SB HRS170407-2, replace the affected CPI beacon components with serviceable parts. |\n| | 7. Spare CPI Beacon components, as listed by serial number in paragraph 1.A of the referenced Eurocopter ASB and which does not have its serial number marked with the letter “C”, may not be installed on any helicopter as replacement part, unless the electrical bonding of that component is checked to meet the criteria specified in paragraph 3 of H.R. Smith SB HRS170407-2 and the letter “C” is marked after the serial number of that component. |\n| | Note 2: EASA Emergency AD 2008-0096-E refers. |\n| Compliance: | For Requirement 1 - Within 15 hours time in service after the effective date of this Directive. |\n| | For Requirement 2 - Immediately following the Requirement 1 bonding measurement. |\n| | For Requirement 3.a. - Before the next flight following the Requirement 1 bonding measurement. |\n| | For Requirement 3.b. - Immediately following compliance with Requirement 3.a. |\n| | For Requirement 3.c.Within three months after the effective date of this Directive. |\n| | For Requirement 4 - Prior to installation of the hoist or the sling (i.e. removable part as applicable) or within 1 month, whichever occurs first after the effective date of this AD. |\n| | For Requirement 5 - Immediately following the Requirement 4 bonding measurement. |\n\n| | For Requirement 6 - Prior to installation of the hoist or the sling (i.e. removable part as applicable) or within 3 months, whichever occurs first after the effective date of this Directive. |\n| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | For Requirement 7 - After the effective date of this Directive. |\n| | This Airworthiness Directive becomes effective on 29 May 2008. |\n| Background: | Eurocopter has received several reports where the CPI 503 beacon deployed on the ground, without having been activated by the crew. Such CPI beacon deployments are due to insufficient electrical bonding between the components of the CPI beacon and the structure of the helicopter that makes the system sensitive to electro-magnetic interference.Uncontrolled CPI beacon deployment creates a risk of injury for persons on the ground and in particular during hoisting or sling operation where electrostatic discharges may occur when the cable makes contact with the ground.For the reasons described above, this Directive requires, only for those helicopters configured for hoisting or sling operations:- identification of the affected CPI 503 beacon components;- inspection of the affected components by measurement of their electrical bonding feature, and- replacement of any components that fail the bonding requirements. |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n28 May 2008","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/96","sectionType":"part","heading":"AD/DAUPHIN/96","content":"## AD/DAUPHIN/96","sortOrder":1},{"sectionNumber":"CPI 503 Crash Position Indicator Compone","sectionType":"part","heading":"CPI 503 Crash Position Indicator Components","content":"## CPI 503 Crash Position Indicator Components","sortOrder":2},{"sectionNumber":"8/2008 TX","sectionType":"part","heading":"8/2008 TX","content":"## 8/2008 TX","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"The Directive applies only to AS365 N3 helicopters fitted with CPI 503 components listed in the referenced Eurocopter ASB and to aircraft configured for hoist/sling operations. It adopts the inspection, marking and replacement regime described in the Eurocopter and H.R. Smith service documents and references the EASA emergency AD; it does not expand applicability beyond those listed serial numbers or introduce additional categories of equipment."},"complexity_factors":["Cross-references to external documents: Eurocopter ASB AS365 No. 25.00.91 and H.R. Smith SB HRS170407-2 provide the detailed measurement and marking procedures (Requirements 1, Note 1).","Configuration-dependent procedures: different workflows for helicopters with removable hoist/sling parts versus those with only fixed structural provisions (Requirements 1–6).","Serial-number tracking and marking rule: only listed CPI components without a trailing “C” require inspection; compliant units must be marked with “C” (Requirements 1–2, 4–5, 7).","Operational constraint and immediate safety action: failed bonding requires disabling circuit-breakers, installing a flight‑crew placard, and prohibiting hoist/sling use until replacement (Requirement 3a–3c).","Time-critical compliance windows and staged deadlines: multiple different timeframes apply (15 flight hours, immediate, before next flight, within 1–3 months) increasing scheduling and logistic complexity (Compliance).","Spare parts control: restriction on installing unmarked spare CPI components unless bonding is checked and marked, adding parts‑management procedures (Requirement 7).","Safety‑critical inspection technique: electrical bonding measurements (technical equipment and personnel training required) as specified in the H.R. Smith SB (Requirement 1, Note 1).","Regulatory linkage: references and alignment with EASA Emergency AD 2008-0096-E, creating potential coordination or conformity requirements (Note 2)."],"plain_english_summary":"This Airworthiness Directive requires operators of AS365 N3 helicopters fitted with CPI 503 crash‑position indicator (CPI) components and hoist or sling equipment to measure the electrical bonding of listed CPI parts, mark compliant units, and replace any parts that fail the test. It targets specific serial numbers listed in the referenced Eurocopter Alert Service Bulletin and H.R. Smith Service Bulletin.\n\nMaintenance organisations carry out the tests; operators pay for inspections and replacements and must disable and placard hoist/sling systems (prohibiting their use) until serviceable parts are installed."},"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":6,"scope_assessment":{"changed":false,"description":"This AD appears focused and targeted. It addresses a specific safety defect (CPI 503 beacon accidental deployment) in a specific helicopter model with specific equipment configurations. The scope remains tightly constrained to electrical bonding inspection and replacement of affected beacon components. There is no evidence of scope creep beyond the original safety purpose."},"complexity_factors":["Multiple conditional pathways based on helicopter configuration (hoist/sling fitted vs. structural provisions only)","Cross-references to external documents: Eurocopter Alert Service Bulletin AS365 No. 25.00.91 and H.R. Smith Service Bulletin HRS170407-2 (the AD is not self-contained)","Nested requirements with interdependent compliance deadlines (Requirement 3 has sub-parts a, b, c with different timelines)","Serial number tracking requirement with specific marking protocol (letter \"C\" suffix)","Dual regulatory reference (EASA Emergency AD 2008-0096-E mentioned in Note 2)","Seven distinct numbered requirements with eight separate compliance deadlines","Technical aviation terminology requiring specialized knowledge (electrical bonding, circuit-breakers, time in service, serviceable parts)"],"plain_english_summary":"This CASA Airworthiness Directive targets AS 365 N3 Dauphin helicopters fitted with CPI 503 crash beacons, after poor electrical bonding can cause accidental ground deployment. Operators must check affected serials, perform a bonding test per H.R. Smith instructions, and mark passing units. Failed units require disabling hoist/sling use (and placarding) and timely replacement; spares may not be fitted unless tested and marked. It prevents unintended beacon activation that could injure ground personnel or disrupt rescue operations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components","history":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components/history","analysis":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components/analysis","conflicts":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components/conflicts","importantCases":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components/important-cases","documents":"/api/acts/ad-dauphin-96-cpi-503-crash-position-indicator-components/documents"}}