{"id":"F2005L02511","name":"AD/S-PUMA/57 Amdt 1 - Tail Servo-Control","slug":"ad-s-puma-57-amdt-1-tail-servo-control","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":37203,"registerId":"commonwealth-F2005L02511-current","compilationNumber":null,"startDate":"2026-04-01","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/57 Amdt 1 | Tail Servo-Control | 11/2005 TX |\n| ------------------- | ------------------ | ---------- |\n\n| Applicability: | AS 332 L, L1, C, C1 and AS 332 L2 helicopters fitted with tail servo-controls part number (P/N) SC7251 before amendment J or P/N SC7270 before amendment F.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. If not previously accomplished in accordance with AD/S-PUMA/57, perform a one time manual check for absence of axial play of the two levers along the distributor shafts of the tail servo-control in accordance with the instructions described in paragraph 2.B.3 of Eurocopter AS332 ASB 67.00.31.2. For installed servo-controls which have accumulated more than 535 hours times in service (TIS) since new at the effective date of this Directive, carry out the tightening torque check detailed in paragraph 2.B.2 of Eurocopter AS332 ASB 67.00.31.3. Manually check for absence of axial play of the two control levers along the distributor shafts of the tail servo-control, in accordance with paragraph 2.B.3. of Eurocopter AS332 ASB 67.00.31.4. In case of axial play, replace the servo-control before resuming flights, in accordance with paragraph 2.B.3. of Eurocopter AS332 ASB 67.00.31.5. For tail servo controls held as spares carry out the tightening torque check detailed in paragraph 2.B.2 of Eurocopter AS332 ASB 67.00.31.Note: DGAC AD F-2005-137 EASA approval No. 2005-6119 dated 27 July 2005 refers. This Directive supersedes UF-2004-197. |\n| Compliance:    | 1. Remains unchanged as detailed in the original issue of this Directive.For installed servo-controls which have accumulated more than 535 hours time in service (TIS) since new; Within 15 hours TIS after the effective date of the original issue of this Directive.For installed servo-controls which have accumulated less than 535 hours TIS since new; No later than 550 hours TIS since new.2. No later than within the 110 flying hours as from the effective date of this AD.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |\n\n|             | 3. For installed servo-controls which have accumulated more than 535 hours time in service (TIS) since new at the effective date of this Directive; No later than within a period of 135 to 165 flying hours following the check detailed in Requirement 2 of this Directive has been completed.For installed servo-controls which have accumulated less than 535 hours TIS since new at the effective date of this Directive; No later than within a period of 135 to 165 flying hours following the torque check detailed in Requirement 2 of this Directive has been completed.4. Before further flight following the effective date of this Directive.5. Before installation in a helicopter after the effective date of this Directive.                                                                |\n| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Amendment becomes effective on 10 September 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |\n| Background: | The Direction Générale de l’Aviation Civile of France has advised that following removal of a tail servo-control for repair, it was reported that a control lever had slipped along the shaft of one of the distributors. Investigation revealed that the control lever could have totally separated from the distributor shaft, which could result in tail servo-control failure.The original issue of this Directive required a one time manual inspection to ensure the integrity of the servo-control assembly.This amendment maintains the one time inspections, introduces follow up inspections and torque checks, and includes actions to be performed if tail servo-controls fail those checks detailed in this Directive.The original issue of this Directive became effective on 7 January 2005. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n2 September 2005","sortOrder":0},{"sectionNumber":"AD/S-PUMA/57 Amdt 1","sectionType":"part","heading":"AD/S-PUMA/57 Amdt 1","content":"## AD/S-PUMA/57 Amdt 1","sortOrder":1},{"sectionNumber":"Tail Servo-Control","sectionType":"part","heading":"Tail Servo-Control","content":"## Tail Servo-Control","sortOrder":2},{"sectionNumber":"11/2005 TX","sectionType":"part","heading":"11/2005 TX","content":"## 11/2005 TX","sortOrder":3}],"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":6,"scope_assessment":{"changed":true,"description":"The amendment expands the original one‑time inspection regime by adding follow‑up inspections, explicit tightening (torque) checks, and specific actions for failed checks and spare units. This is stated in the Background: 'This amendment maintains the one time inspections, introduces follow up inspections and torque checks, and includes actions to be performed if tail servo‑controls fail those checks detailed in this Directive.' (Background; Requirement)."},"complexity_factors":["Narrow applicability tied to specific part numbers and amendment states (P/N SC7251 before amendment J; P/N SC7270 before amendment F) (Applicability).","Different treatment based on time‑in‑service thresholds (>535 TIS vs <535 TIS) that change required actions (Requirement / Compliance).","Multiple, overlapping compliance windows and deadlines (e.g. within 15 TIS hours, no later than 550 TIS, within 110 flying hours, follow‑up at 135–165 flying hours) that operators must track precisely (Compliance).","Several distinct mandated actions: manual axial‑play checks, tightening‑torque checks, replacement before flight if axial play found, and spare handling rules (Requirement).","Procedural work tied to external Eurocopter service bulletin paragraphs for how checks are performed, creating reliance on another document for implementation detail (Requirement references AS332 ASB 67.00.31.2–.5).","Regulatory cross‑references and history: DGAC/EASA approvals cited and the amendment supersedes a prior directive (UF‑2004‑197), affecting compliance chronology (Background).","Multiple effective dates and amendment history to reconcile (original Directive effective 7 Jan 2005; this Amendment effective 10 Sep 2005), increasing administrative tracking burden (Background / header)."],"plain_english_summary":"This amendment requires one‑time and follow‑up inspections plus tightening (torque) checks of specified tail servo‑controls on Eurocopter AS332 Super Puma helicopters, and mandates replacement if axial play is found. It applies to particular servo‑control part numbers and helicopter variants listed. \n\nOperators and maintenance organisations must perform and pay for the checks, torque tests and any replacements within the staggered time windows set out in the Directive. The measure targets a mechanical risk that can cause tail servo‑control failure."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"The original directive (effective January 2005) required only a one-time manual inspection. This Amendment 1 (September 2005) significantly expanded the scope by adding: (1) follow-up inspections required 135-165 flight hours after initial checks, (2) torque checks for high-time components, (3) mandatory replacement protocols if checks fail, and (4) requirements for spare parts held in inventory — not just installed components. The directive evolved from a simple inspection order to a comprehensive ongoing maintenance regime."},"complexity_factors":["Multiple conditional compliance deadlines based on component flight hours (535 hours TIS threshold creates two distinct compliance tracks)","Cross-references to external technical documents (Eurocopter ASB 67.00.31 paragraphs 2.B.2 and 2.B.3) without reproducing their content","Nested applicability criteria: helicopter model + specific part numbers + specific amendment levels of those parts","Five distinct requirements with different compliance timeframes that must be tracked separately","Reference to superseded directives (UF-2004-197) and foreign aviation authority directives (DGAC AD F-2005-137, EASA approval 2005-6119)","Distinction between installed components and spare parts held in inventory with different compliance triggers"],"plain_english_summary":"This AD requires operators of Eurocopter AS332 Super Puma variants in Australia to inspect (and, if necessary, replace) specified tail servo-controls — including spares — after discovery that a control lever can slip or detach, risking complete loss of tail-rotor control. Actions include checking for axial play, torque verification on high-time units, immediate replacement if loose, and follow-up inspections within set flight-hour windows to prevent catastrophic loss of yaw control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control","history":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control/history","analysis":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control/analysis","conflicts":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control/conflicts","importantCases":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control/important-cases","documents":"/api/acts/ad-s-puma-57-amdt-1-tail-servo-control/documents"}}