{"id":"F2006B10665","name":"AD/HU 369/105 - Main Rotor Blade Attach Pins","slug":"ad-hu-369-105-main-rotor-blade-attach-pins","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116594,"registerId":"commonwealth-F2006B10665-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/HU 369/105 Main Rotor Blade Attach Pi","sectionType":"part","heading":"AD/HU 369/105 Main Rotor Blade Attach Pins 8/2000","content":"# AD/HU 369/105 Main Rotor Blade Attach Pins 8/2000\n\nTX\n\nApplicability: Kawasaki 369D and 369HSwith blade attach pins P/N 369A1004-5 manufactured by Avibank Mfg. Inc. on or before December 1992.\n\nRequirement: Action in accordance with JCAB AD No. TCD-5160-1-2000 dated 14 June 2000.\n\nCompliance: Before further flight after the effective date of this directive; thereafter at intervals not exceeding 25 hours time in service.\n\nThis Airworthiness Directive becomes effective on 29 June 2000.\n\nBackground: This directive is issued to detect any fatigue cracking which could lead to failure of the main rotor blades attachment pins.\n\n![Signature of Bernard Malcolm Hole Delegate of the Civil Aviation Safety Authority](image.003.png)  \n\nBernard Malcolm Hole\n\nDelegate of the Civil Aviation Safety Authority 28 June 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 29 June 2000.","sortOrder":1}],"analysis":{"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":false,"description":"This AD maintains its original narrow scope — addressing a specific unsafe condition in specific helicopter models with specific parts. There is no evidence of scope creep; it targets exactly the safety issue identified (fatigue cracking in Avibank-manufactured pins) with precisely tailored applicability."},"complexity_factors":["Very short document (under 300 words)","Only 4 defined elements: specific helicopter models, part number, manufacturer, and date cutoff","Single requirement with clear cross-reference to external technical standard (JCAB AD)","Simple compliance structure: one-time immediate action plus recurring interval","No nested conditions, exceptions, or alternative compliance paths","No interpretive provisions or definitions section"],"plain_english_summary":"This AD requires owners/operators of Kawasaki 369D and 369HS helicopters with Avibank-made main rotor blade attachment pins (P/N 369A1004-5, manufactured on or before Dec 1992) to inspect those pins for fatigue cracking immediately (before further flight after 29 June 2000) and every 25 flight hours thereafter, per JCAB AD No. TCD-5160-1-2000. It’s intended to detect cracks early and prevent catastrophic blade separation."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope is explicit in the text and appears consistent with its stated purpose: it names the affected airframes and specific part-number/date range, prescribes inspection action by reference to JCAB AD TCD-5160-1-2000, and sets the compliance timing and effective date. The document contains no indication that its applicability or requirements were altered from an earlier version (see 'Applicability', 'Requirement', 'Compliance' and effective date)."},"complexity_factors":["Narrow technical applicability to Kawasaki 369D and 369HS with blade attach pins P/N 369A1004-5 manufactured by Avibank on or before December 1992 (see 'Applicability').","External normative reference: requirement directs compliance with JCAB AD No. TCD-5160-1-2000 dated 14 June 2000, creating a dependence on another authority's procedures (see 'Requirement').","Operational compliance timing: inspection required 'before further flight' after the effective date and thereafter at intervals not exceeding 25 hours time in service — frequent, recurring inspections that impose direct operational burden on operators (see 'Compliance').","Delegated issuance under CAR 1998 subreg 39.1(1) concentrates decision authority with CASA's delegate (see opening paragraph referencing subregulation 39.1 (1) of CAR 1998).","Purpose narrowly safety-focused: issued 'to detect any fatigue cracking which could lead to failure' — the safety rationale is explicit but leaves implementation to the referenced JCAB AD (see 'Background').","Short effective timeframe: becomes effective on 29 June 2000, which may require rapid operator action (see 'This Airworthiness Directive becomes effective on 29 June 2000')."],"plain_english_summary":"This Airworthiness Directive orders regular inspections of main rotor blade attach pins P/N 369A1004-5 on Kawasaki 369D and 369HS helicopters (those pins made by Avibank on or before December 1992) to find fatigue cracking. Operators must follow the inspection procedure in JCAB AD No. TCD-5160-1-2000 and inspect before the next flight after the AD’s effective date, then at intervals not exceeding 25 hours time-in-service. CASA issued the directive under CAR 1998 subreg 39.1(1)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins","history":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins/history","analysis":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins/analysis","conflicts":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins/conflicts","importantCases":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins/important-cases","documents":"/api/acts/ad-hu-369-105-main-rotor-blade-attach-pins/documents"}}