{"id":"F2006B02618","name":"AD/B717/3 - Spoiler Hold-Down Actuator Rod End","slug":"ad-b717-3-spoiler-hold-down-actuator-rod-end","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41934,"registerId":"commonwealth-F2006B02618-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.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.\n\nBoeing 717 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B717/3 Spoiler Hold-Down Actuator Rod","sectionType":"part","heading":"AD/B717/3 Spoiler Hold-Down Actuator Rod End 12/2001","content":"# AD/B717/3 Spoiler Hold-Down Actuator Rod End 12/2001\n\nApplicability: Model 717 series aircraft, manufacturers fuselage numbers 5004 through 5036. Requirement: Action in accordance with the technical requirements of FAA AD 2001-17-21 Amdt\n\n39-12412.\n\nNote: Boeing Service Bulletins 717-27A0010, 717-27-0013, and 717-27-0013 Revision 01 refer.\n\nCompliance: As specified in the Requirement document with a revised effective date of 29 November 2001.\n\nThis Airworthiness Directive becomes effective on 29 November 2001.\n\nBackground: This Directive requires repetitive inspections of the spoiler hold-down actuator rod ends for breakage; and eventual replacement of the rod ends with new rod ends, and re-identification of the spoiler hold-down actuators, which constitutes terminating action for the repetitive inspections. Failure of the rod ends due to fatigue could result in loss of the back-up protection of the spoiler float hold-down and unavailability of monitoring for an uncommanded spoiler movement.\n\n![Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 17 October 2001\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 7 November 2001.","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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD implements the actions set out in FAA AD 2001‑17‑21 for the specified subset of Boeing 717 airframes (5004–5036) and requires inspections and replacement as terminating action. The instrument aligns Australian requirements with the referenced FAA directive and Boeing service bulletins and does not expand or narrow the stated applicability beyond those specified aircraft and the actions required."},"complexity_factors":["Narrow applicability: only Model 717 aircraft with fuselage numbers 5004–5036 (limits scale of compliance).","Relies on external normative documents: compliance is by following FAA AD 2001‑17‑21 and specific Boeing service bulletins (operators must obtain and follow those documents).","Operational mechanics: repetitive inspections with a defined terminating action (replacement and re‑identification) — requires scheduling, recordkeeping and parts procurement.","Compliance timing: effective date and referenced revised effective date create specific deadlines (administrative attention required).","Enforcement and discretion: issued under CASA subregulation 39.1(1) by a delegate — administrative enforcement and compliance oversight apply.","Safety consequence linkage: failure leads to loss of backup spoiler float hold‑down monitoring, so urgency and inspection frequency may be higher (affects operational risk management)."],"plain_english_summary":"This AD requires operators of Boeing 717 aeroplanes (fuselage numbers 5004–5036) to perform repetitive inspections of spoiler hold‑down actuator rod ends for breakage and to replace and re‑identify the rod ends as the terminating action, pursuant to FAA AD 2001‑17‑21 and referenced Boeing service bulletins. CASA issued the directive effective 29 November 2001. Operators pay for inspections, parts and labour; the rule obliges changes to maintenance scheduling and creates an enforceable compliance requirement to reduce risk of actuator fatigue failures."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a limited fleet of aircraft. It has not expanded beyond its original purpose of mandating inspection and replacement of a single component type."},"complexity_factors":["Short, single-purpose directive (4 pages including headers and signature)","Only 1 defined applicability criterion (fuselage number range)","Relies entirely on external technical document (FAA AD 2001-17-21) for actual inspection/replacement procedures — the 'Requirement' section simply defers to this external standard","Minimal conditional logic — essentially 'if you operate this aircraft, do this action'","3 referenced Boeing Service Bulletins noted but not reproduced","No nested exceptions or elaborate compliance calculations"],"plain_english_summary":"This AD mandates repetitive inspections and eventual replacement/re-identification of spoiler hold‑down actuator rod ends on Boeing 717 fuselages 5004–5036 because fatigue cracks can cause unexpected spoiler movement and loss of backup/warning. It affects operators of those aircraft; replacement is the terminating action. It took effect 29 November 2001."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end","history":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end/history","analysis":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end/analysis","conflicts":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end/conflicts","importantCases":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end/important-cases","documents":"/api/acts/ad-b717-3-spoiler-hold-down-actuator-rod-end/documents"}}