{"id":"F2006B06891","name":"AD/SD3-60/45 Amdt 1 - Stub Wing Shear Decks","slug":"ad-sd3-60-45-amdt-1-stub-wing-shear-decks","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114771,"registerId":"commonwealth-F2006B06891-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SD3-60/45 Amdt 1 - Stub Wing Shear Decks","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/SD3- 60/45 and issues the following AD under subregulation 39.1 (1) of CASR 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\n![](image.001.png)  \n\nShort SD3-60 Series Aeroplanes\n\nAD/SD3-60/45\n\nAmdt 1\n\n  \nStub Wing Shear Decks 10/2003\n\nApplicability: All SD3-60 aircraft, except aircraft with Service Bulletin SD360-32-35 incorporated. Requirement: Inspect in accordance with Short Brothers Service Bulletin SD360-53-42 Revision 1.\n\nNote 1: Further action may be required for aircraft in compliance with a previous issue of the Requirement document.\n\nNote 2: UK CAA AD 005-09-96 refers.\n\nCompliance: Unless the initial inspection has already been accomplished, before 30 April 1997; thereafter as specified in the Requirement Document, until Service Bulletin SD360- 32-35 is incorporated.\n\nThe compliance times remain unchanged by this issue. This Amendment becomes effective on 2 October 2003.\n\nBackground: Reports were received of corrosion/wear to the top and bottom stub wing shear decks.\n\nAmendment 1 is issued in response to a revision of the Requirement document, which includes reference to approved oversize bushes and clarifies retaining pin and circlip retention.\n\nThe original issue of this Airworthiness Directive became effective on 30 January 1997.\n\n![Signature of David Villiers Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 22 August 2003\n\n![](image.001.png)\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 10 September 2003.\n\n  \n\nPage 1 of 1","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the airworthiness directive. It updates the technical requirements to reference revised manufacturer documentation and clarifies hardware specifications, but does not expand the applicability to new aircraft types or introduce new categories of requirements beyond the original safety inspection mandate."},"complexity_factors":["Single, specific technical requirement with clear cross-reference to manufacturer service bulletin","Limited applicability (one aircraft series with one explicit exception)","Straightforward compliance timeline with single condition (unless already done)","Minimal defined terms — relies on external technical documents for detailed instructions","No nested exceptions or conditional logic beyond the initial applicability exclusion"],"plain_english_summary":"Owners and operators of Short SD3-60 series aeroplanes (unless already modified by SB SD360-32-35) must inspect the stub wing shear decks for corrosion and wear per Short Brothers SB SD360-53-42 Rev 1, with repeated checks until the terminating modification is installed. This safety order addresses a potential structural weakness; Amendment 1 adds approved oversized bushes and clarifies retention of pins and circlips."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The amendment does not change which aircraft are subject to the AD or the stated compliance times. It revokes and reissues the AD to reference a revised Requirement document (Service Bulletin SD360‑53‑42 Rev 1) that adds approved oversize bushes and clarifies retaining pin/circlip retention. The practical effect is a technical clarification to inspection/repair instructions, not an expansion or narrowing of applicability or compliance deadlines."},"complexity_factors":["Technical subject-matter: aircraft structural components (stub wing shear decks) requiring specialist inspection and potential repair.","Cross-reference to multiple service documents and prior ADs (Service Bulletin SD360‑53‑42 Rev 1; exception for SB SD360‑32‑35; reference to UK CAA AD).","Regulatory mechanism: revocation and reissue of an AD under CASR subreg 39.1(1), creating formal enforcement obligations.","Compliance timing: fixed historical initial deadline (30 April 1997) with ongoing repeat inspections as specified in the service bulletin.","Limited exemption scope (aircraft with SB SD360‑32‑35 incorporated) adds a conditional compliance pathway.","Amendment content is technical (adds approved oversize bushes and clarifies pin/circlip retention) rather than broad policy change, requiring implementers to follow revised technical instructions.","Cost and responsibility: operators/owners bear inspection and repair costs; potential operational downtime for inspections/repairs."],"plain_english_summary":"This AD revokes the previous SD3‑60/45 directive and requires operators of Short SD3‑60 aeroplanes to inspect the top and bottom stub wing shear decks in accordance with Short Brothers Service Bulletin SD360‑53‑42 Revision 1, except for aircraft that already have Service Bulletin SD360‑32‑35 incorporated. Initial inspections were required by 30 April 1997 and repeats follow the service bulletin until SD360‑32‑35 is embodied. Operators pay for inspections and any repairs; CASA enforces the AD under CASR subreg 39.1(1)."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks","history":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks/history","analysis":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks/analysis","conflicts":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks/conflicts","importantCases":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks/important-cases","documents":"/api/acts/ad-sd3-60-45-amdt-1-stub-wing-shear-decks/documents"}}