{"id":"F2006B05376","name":"AD/P68/49 - Landing Gear Attach Bolts","slug":"ad-p68-49-landing-gear-attach-bolts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45960,"registerId":"commonwealth-F2006B05376-current","compilationNumber":null,"startDate":"2026-04-02","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/P68/49 Landing Gear Attach Bolts 5/20","sectionType":"part","heading":"AD/P68/49 Landing Gear Attach Bolts 5/2000 DM","content":"# AD/P68/49 Landing Gear Attach Bolts 5/2000 DM\n\nApplicability: All models P68, except model P68R.\n\nRequirement: For Serial Numbers up to and including 400, inspect in accordance with Vulcan Air SB 99 Rev. 1.\n\nFor all aircraft, comply with the Note at Page 3 of the Requirement document.\n\nNote: RAI AD 2000-140 refers.\n\nCompliance: Before further flight after the effective date of this directive.\n\nThis Airworthiness Directive becomes effective on 12 April 2000.\n\nBackground: The manufacturer has received a report of a failure of a bolt which attaches the MLG spring to fuselage joint. The failure is attributed to an over torque of the attaching bolt.\n\n![](image.003.png)  \n\nBernard Malcolm Hole\n\nDelegate of the Civil Aviation Safety Authority 5 April 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 12 April 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 mechanical failure mode in a specific aircraft type. It has not expanded beyond the original safety issue of landing gear attach bolt failures due to over-torquing."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined applicability categories (all P68 models, P68R exception, serial numbers up to 400)","Single requirement with two sub-parts (inspection per service bulletin, plus note compliance)","No cross-references to other legislation beyond a single note referencing another AD (RAI AD 2000-140)","Simple binary compliance trigger (before further flight after effective date)","No conditional logic, exceptions, or nested provisions"],"plain_english_summary":"This AD orders immediate inspections of the main landing‑gear attach bolts on Vulcan Air P68 aircraft (all models except the P68R) after a bolt failure caused by over‑torque that could lead to gear collapse. Affected aircraft with serial numbers up to 400 must follow the manufacturer’s Service Bulletin SB 99 Rev.1 and the additional note on page 3, and inspections must be completed before the next flight after 12 April 2000."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"This AD imposes a new, mandatory inspection obligation on Vulcan P68 aircraft (except P68R) with serial numbers up to 400 and imposes a Note affecting all P68 aircraft, effective immediately (Applicability; Requirement; Compliance). Practically, it converts a manufacturer concern into a regulatory requirement that grounds affected aircraft until inspections are completed and shifts inspection costs and scheduling burdens to operators."},"complexity_factors":["Serial-number-limited applicability (Applicability; Requirement): inspection mandated only for SN ≤ 400 increases record checks for operators.","Immediate compliance timing (Compliance): action required before the next flight creates urgent operational and scheduling burden.","Reliance on external service bulletin (Requirement: Vulcan Air SB 99 Rev.1): directive defers technical instructions to a manufacturer document that operators must obtain and follow.","Universal Note requirement (Requirement: Note at Page 3): applies to all aircraft but is contained in the Requirement document rather than the AD text, requiring cross-reference.","Cross-reference to another AD (Requirement/Note: RAI AD 2000-140): may require reviewing additional regulatory material to understand full obligations.","Variant exclusion (Applicability: except model P68R): operators must confirm aircraft variant to determine applicability.","Enforcement origin (Header/Background): issued under CAR 1998 subregulation 39.1(1) by CASA delegate, giving the directive legal force."],"plain_english_summary":"This Airworthiness Directive requires operators of Vulcan P68 aircraft (except the P68R) to inspect the main landing‑gear attach bolts. For airframes with serial numbers up to 400 the inspection must follow Vulcan Air SB 99 Rev.1, and a specific Note on page 3 applies to all aircraft. The check must be carried out before the next flight after the AD’s effective date. The AD responds to a reported bolt failure attributed to over‑torque; operators bear inspection costs and CASA (delegate) enforces compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-49-landing-gear-attach-bolts","history":"/api/acts/ad-p68-49-landing-gear-attach-bolts/history","analysis":"/api/acts/ad-p68-49-landing-gear-attach-bolts/analysis","conflicts":"/api/acts/ad-p68-49-landing-gear-attach-bolts/conflicts","importantCases":"/api/acts/ad-p68-49-landing-gear-attach-bolts/important-cases","documents":"/api/acts/ad-p68-49-landing-gear-attach-bolts/documents"}}