{"id":"F2007L02380","name":"AD/JBK 117/7 Amdt 1 - Main Rotor Control Components","slug":"ad-jbk-117-7-amdt-1-main-rotor-control-components","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":67752,"registerId":"commonwealth-F2007L02380-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Kawasaki BK 117 Series Helicopters","sectionType":"division","heading":"Kawasaki BK 117 Series Helicopters","content":"### Kawasaki BK 117 Series Helicopters\n\n| AD/JBK 117/7 Amdt 1 | Main Rotor Control Components | 9/2007 |\n| ------------------- | ----------------------------- | ------ |\n\n| Applicability: | All Kawasaki BK 117 series helicopters.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Re-identify the hinged support (rocker support) and bearing bracket, as specified in Kawasaki Service Bulletin (KSB) KSB-117-116 dated 9 Jan 1995 or later approved NAA revision.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n| Compliance:    | If not previously accomplished in accordance with the original issue of this directive (AD/JBK 117/7), re-identified the affected parts within 30 days of the effective date of this directive.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |\n|                | This Amendment becomes effective on 30 August 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| Background:    | In order to differentiate these parts from identically part numbered components used on the BO 105 series helicopter it is necessary to re-identify them.The original issue of this directive was to mandate a revised fatigue life of the hinge support (rocker support) and bearing bracket when installed on the BK 117. Re-identification of these parts was also required as they carried the same part number as those fitted to BO 105 series helicopters which have a different fatigue life.This Amendment removes the retirement life requirements as they have again been changed and have been mandated by AD/JBK 117/25, but kept the re-identification of the affected parts in order to differentiate these parts from identically part numbered components used on the BO 105 series helicopter. The initial compliance date has remained unchanged from the initial issue date of 25 June 1995. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n20 July 2007","sortOrder":0},{"sectionNumber":"AD/JBK 117/7 Amdt 1","sectionType":"part","heading":"AD/JBK 117/7 Amdt 1","content":"## AD/JBK 117/7 Amdt 1","sortOrder":1},{"sectionNumber":"Main Rotor Control Components","sectionType":"part","heading":"Main Rotor Control Components","content":"## Main Rotor Control Components","sortOrder":2},{"sectionNumber":"9/2007","sectionType":"part","heading":"9/2007","content":"## 9/2007","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Yes. The amendment removes the retirement‑life (fatigue life) retirement requirements that the original directive imposed and retains only the re‑identification requirement; retirement lives are now mandated by AD/JBK 117/25. The initial compliance date remains the same as the original directive (Background)."},"complexity_factors":["Narrow technical scope: single corrective action (re‑identification of two component types).","Uniform applicability: affects all Kawasaki BK 117 series helicopters (straightforward cohort).","Short compliance window: 30 days from effective date increases scheduling pressure.","Dependency on external document: work must follow Kawasaki Service Bulletin KSB‑117‑116 or later NAA‑approved revision.","Interplay with other directives: retirement‑life requirements removed here and now mandated by AD/JBK 117/25 (requires cross-referencing).","Operational/admin burden: physical marking, parts tracking and maintenance-record updates required.","Potential supply-chain confusion: identical part numbers across BK‑117 and BO‑105 require careful identification to avoid misinstallation."],"plain_english_summary":"Requires owners/operators of Kawasaki BK 117 helicopters to re‑identify the hinged support (rocker support) and bearing bracket in accordance with Kawasaki Service Bulletin KSB‑117‑116 or a later NAA‑approved revision. The amendment drops the retirement‑life (fatigue life) limits that were previously mandated elsewhere but keeps the re‑identification to distinguish BK‑117 parts from identical part‑number BO‑105 parts. Operators must complete the re‑identification within 30 days of the effective date; operators bear marking and record‑keeping costs and CASA enforces compliance."},"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":true,"description":"The original directive had a broader scope — it mandated both re-identification AND established retirement life limits for these parts. This amendment narrows the scope by removing the retirement life requirements (which moved to AD/JBK 117/25), retaining only the re-identification requirement. The legislation has effectively been 'split' across two directives, reducing this one's scope to purely administrative identification."},"complexity_factors":["Very short document (approximately 250 words of substantive content)","Only 2 defined technical terms requiring clarification (hinged support/rocker support, bearing bracket)","Single compliance action required (re-identification)","Simple conditional logic: only applies if not already done under original directive","No cross-references to other legislation beyond a single mention of related directive AD/JBK 117/25","Clear effective date and compliance timeframe","Background explanation provided in plain language"],"plain_english_summary":"This CASA Airworthiness Directive requires operators of Kawasaki BK 117 helicopters to re‑label two parts (hinged/rocker support and bearing bracket) per Kawasaki Service Bulletin KSB‑117‑116 to prevent mix‑ups with visually identical BO 105 parts that have different fatigue lives.  \n\nThis amendment removes the previous retirement deadlines (now covered by a separate AD) but retains the mandatory re‑identification; affected operators must comply within 30 days of the amendment."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components","history":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components/history","analysis":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components/analysis","conflicts":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components/conflicts","importantCases":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components/important-cases","documents":"/api/acts/ad-jbk-117-7-amdt-1-main-rotor-control-components/documents"}}