{"id":"F2006B03102","name":"AD/B747/202 - Wing Inboard Foreflap Sequence Carriage Attachment","slug":"ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42474,"registerId":"commonwealth-F2006B03102-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/202 - Wing Inboard Foreflap Sequence Carriage Attachment","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBoeing 747 Series Aeroplanes\n\nAD/B747/202 Wing Inboard Foreflap Sequence Carriage Attachment\n\n  \n6/99\n\nApplicability: Model 747-100, 747-200B, 747-200F, 747-200C, 747SR, 747-100B, 747-300, 747-\n\n100B SUD, 747-400, 747-400D, and 747-400F aircraft; line numbers 1 through 1,116.\n\nRequirement: Perform a one-time detailed visual inspection of the foreflap outboard sequence carriage attachment fitting to detect any discrepancy (missing, loose, or migrated shim; and loose fasteners) in accordance with Boeing Alert Service Bulletin 747- 57A2302, or Boeing Service Bulletin 747-57A2302 Revision 1. If any discrepancy is detected, accomplish follow-on corrective actions in accordance with the applicable chapter of the Boeing Airplane Maintenance Manual specified in either of the service bulletins.\n\nNote: FAA AD 99-05-02 Amdt 39-11051 refers.\n\nCompliance: Within 1,500 landings after 17 June 1999, or before 17 December 2000, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 17 June 1999.\n\nBackground: The FAA received a report that a piece of the left wing inboard foreflap came off during a landing approach and penetrated the fuselage.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific mechanical failure mode. The scope remains precisely limited to the identified safety defect in the specified aircraft population. No scope creep is evident — the directive does not expand to unrelated systems, additional aircraft types, or ongoing maintenance regimes beyond the one-time inspection."},"complexity_factors":["Single, discrete inspection requirement with no conditional branches or alternative compliance methods","Only 3 defined technical terms (foreflap, sequence carriage, shim) — all explained by context or common aviation knowledge","No cross-references to other legislation beyond a single note referencing the parallel FAA directive","Straightforward compliance deadline using 'whichever occurs first' logic — simple temporal condition","No exceptions, exemptions, or nested sub-provisions","Total length: approximately 200 words across 6 short paragraphs"],"plain_english_summary":"This CASA Airworthiness Directive mandates a one‑time visual inspection of the foreflap outboard sequence carriage attachment fitting on early Boeing 747s (line numbers 1–1,116) for missing or loose shims and fasteners, with required repairs per Boeing's manual. \n\nIt affects operators of -100/‑200/‑300/‑400 series 747s and is safety‑critical after an FAA report of a detached foreflap part that pierced the fuselage; inspections are due within 1,500 landings after 17 Jun 1999 or before 17 Dec 2000."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive's scope aligns with the stated safety response: a one-time inspection and corrective action for the foreflap carriage attachment on the listed 747s (line numbers 1–1,116). The background (report of a foreflap piece detaching) explains the motivation but does not indicate any expansion or narrowing of scope beyond the inspection and repair requirements set out in the instrument."},"complexity_factors":["Applicability covers multiple Boeing 747 variants and is limited to line numbers 1–1,116 (administrative filtering of fleet).","Mandated reliance on external manufacturer documents (Boeing Alert Service Bulletin 747-57A2302 or Revision 1) requires access to and interpretation of those documents.","Required follow-on corrective actions are delegated to the Boeing Airplane Maintenance Manual rather than specified in the directive, creating variability in scope of repair.","Compliance timing uses both a landing-count metric (1,500 landings) and an absolute date (17 December 2000) — operators must track flight cycles and calendar time.","Inspection is a ‘‘detailed visual’’ task that requires qualified maintenance personnel and may reveal a range of defects (missing/migrated shims, loose fasteners) with differing repair complexity.","Potential for differing corrective-action extent depending on inspection findings increases operational and cost uncertainty for operators."],"plain_english_summary":"This directive requires operators of specified Boeing 747 models (line numbers 1–1,116) to perform a one‑time detailed visual inspection of the wing inboard foreflap outboard sequence carriage attachment for missing, loose or migrated shims and loose fasteners, using Boeing service bulletins. Any defects must be fixed per the Boeing Airplane Maintenance Manual. Compliance is within 1,500 landings after 17 June 1999 or by 17 December 2000. Operators pay for inspections and repairs and must schedule work to meet the deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment","history":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment/history","analysis":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment/analysis","conflicts":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment/conflicts","importantCases":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment/important-cases","documents":"/api/acts/ad-b747-202-wing-inboard-foreflap-sequence-carriage-attachment/documents"}}