{"id":"F2009L03004","name":"AD/S-PUMA/66 Amdt 2 - Main Rotor Head Spindles","slug":"ad-s-puma-66-amdt-2-main-rotor-head-spindles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80537,"registerId":"commonwealth-F2009L03004-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 332 (Super Puma) Series He","sectionType":"division","heading":"Eurocopter AS 332 (Super Puma) Series Helicopters","content":"### Eurocopter AS 332 (Super Puma) Series Helicopters\n\n| AD/S-PUMA/66 Amdt 2 | Main Rotor Head Spindles | 10/2009 TX |\n| ------------------- | ------------------------ | ---------- |\n\n| Applicability: | Model AS 332 C, AS 332 C1, AS 332 L, and AS 332 L1 helicopters, equipped with the following main rotor head spindles part number:- 332A31-1390-(all dash numbers);- 332A31-1398-(all dash numbers);- 332A31-1410-02, -03, -04 and -05;- 332A31-1485-00, -05 and -06.Including those equipped with the (optional) main rotor blade folding system, incorporating lock supports, identified with the following part number:- 332A31.1388.20, .21, .22, .23, .24 and .25;- 332A32.1389.20, .21, .22, .23, .24 and .25. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of EASA Emergency AD 2009-0164-E.Note: Eurocopter AS 332 ASB No. 05.00.67 Revision 2, dated 22 July 2009, and AS 332 SB No. 62.00.74, dated 22 July 2009, or later EASA approved revisions, refer.                                                                                                                                                                                                                                                                       |\n| Compliance:    | As specified in the Requirement document.                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Amendment becomes effective on 31 July 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |\n| Background:    | The EASA received a report of the failure of the lower material section on the leading edge of a main rotor head spindle yoke on an AS 332 L helicopter. The crack which led to the failure was externally visible.Amendment 1 introduced both a check on main rotor heads equipped with the optional main rotor blade folding system, and the modification to certain lock supports of this optional equipment, in order to ease the subsequent checks.                                                            |\n\n|     | Amendment 2 is issued in response to a new Emergency EASA AD, which retains the requirements of EASA AD 2006-0349R1, requires the removal of and prohibits (re)installation of spindle nut part number ASNA0045-060BCL on MRH units fitted with spindles part number 332A31-1410-(all dash numbers) and part number 332A31-1485-(all dash numbers) and requires parts re-identification of certain spindles in accordance with MOD 0743313. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n30 July 2009","sortOrder":0},{"sectionNumber":"AD/S-PUMA/66 Amdt 2","sectionType":"part","heading":"AD/S-PUMA/66 Amdt 2","content":"## AD/S-PUMA/66 Amdt 2","sortOrder":1},{"sectionNumber":"Main Rotor Head Spindles","sectionType":"part","heading":"Main Rotor Head Spindles","content":"## Main Rotor Head Spindles","sortOrder":2},{"sectionNumber":"10/2009 TX","sectionType":"part","heading":"10/2009 TX","content":"## 10/2009 TX","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This remains a targeted safety directive addressing main rotor head spindle integrity. While Amendment 2 adds new requirements (spindle nut prohibition and re-identification), these are responsive to the same underlying safety issue (spindle cracking/failure) rather than an expansion into unrelated areas. The scope has tightened and refined rather than grown beyond original intent."},"complexity_factors":["Heavy reliance on external documents — the actual requirements are contained in EASA Emergency AD 2009-0164-E and two Eurocopter service bulletins, which are not reproduced in the text","Extensive part number specificity — 10 different spindle part number ranges and 12 lock support part numbers must be cross-referenced","Nested applicability conditions — applies to specific models, with specific spindles, with optional equipment variations","Amendment structure requires understanding of previous versions (Amendment 1 introduced checks for blade-folding systems; Amendment 2 adds new prohibitions and re-identification requirements)"],"plain_english_summary":"This AD mandates urgent inspections and modifications to main rotor head spindles on certain Eurocopter AS332 (Super Puma) helicopters after a reported cracked spindle. It affects owners/operators of AS332 C/C1/L/L1 airframes with specified spindle part numbers (including those with optional blade‑folding). Operators must follow EASA Emergency Directive 2009‑0164‑E and referenced Eurocopter service bulletins — including banning spindle nut ASNA0045‑060BCL and re‑identifying/removing affected spindles — to prevent in‑flight rotor separation."},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":true,"description":"Amendment 2 expands the prior directive by retaining earlier AD requirements and adding a new prohibition on spindle nut ASNA0045-060BCL for MRH units with spindles 332A31-1410-(all) and 332A31-1485-(all), plus a mandatory parts re-identification process (MOD 0743313), thereby widening actions operators must take."},"complexity_factors":["Multiple specific affected helicopter models (AS 332 C, C1, L, L1) and numerous spindle part numbers to check.","Cross-references mandatory compliance to EASA Emergency AD 2009-0164-E and retains earlier EASA AD 2006-0349R1 requirements.","Mandated removal and prohibition of spindle nut part ASNA0045-060BCL on MRH units fitted with spindles 332A31-1410-(all) and 332A31-1485-(all).","Requirement for parts re-identification per MOD 0743313, creating administrative and traceability work for operators and maintainers.","References to Eurocopter service/alert bulletins (ASB No. 05.00.67 Rev 2 and SB No. 62.00.74) for procedures increase dependence on manufacturer documentation.","Inclusion of optional main rotor blade folding system variants increases inspection permutations and potential modification needs.","Emergency nature implies compressed compliance timelines and potential operational disruption or aircraft grounding.","Technical inspection and parts-change work requires qualified maintenance resources and potential supply/parts availability constraints.","Regulatory coordination between CASA (delegate) actions and EASA directives introduces layered compliance obligations for Australian operators."],"plain_english_summary":"This airworthiness directive requires operators of Eurocopter AS 332 C/C1/L/L1 helicopters with specified main rotor head spindles to carry out inspections and corrective actions set out by the referenced EASA Emergency AD. It also mandates removal and bans (re)installation of a specific spindle nut part (ASNA0045-060BCL) on certain spindle types and requires re-identification of some spindles under MOD 0743313. Owners/operators pay for inspections, removals and any replacements; regulators require compliance to address reported spindle yoke cracking and failures."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles","history":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles/history","analysis":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles/analysis","conflicts":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles/conflicts","importantCases":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles/important-cases","documents":"/api/acts/ad-s-puma-66-amdt-2-main-rotor-head-spindles/documents"}}