{"id":"F2006B04869","name":"AD/CASA/13 Amdt 1 - Flap Control System","slug":"ad-casa-13-amdt-1-flap-control-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44676,"registerId":"commonwealth-F2006B04869-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CASA/13 Amdt 1 - Flap Control System","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Casa 212 Series Aeroplanes\n\n \n\n# AD/CASA/13\n\nAmdt 1\n\nApplicability: All models.\n\n# Flap Control System 13/89\n\n \n\nRequirement: Inspect the flap control system in accordance with Casa document COM. 212-206 Revision 1, dated 20 May 1988. The procedures detailed in the C212 Non Destructive Inspection Manual (27-50-01 through 27-50-05) provide acceptable methods for accomplishing the inspections required by this AD.\n\n \n\nCompliance: Prior to accumulating 20000 flights or within 2000 flights after 5 October 1989, whichever is the later, and thereafter at intervals specified in the Requirement Document.\n\n \n\nBackground:  Damage tolerance analyses have identified elements of the flap control system as potentially critical, and an inspection schedule to provide continued structural integrity beyond the original design life has been produced. Amdt 1 corrects an inspection interval error in the original AD.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment makes a minor technical correction to inspection intervals. The scope remains tightly focused on the original purpose: ensuring structural integrity of the Casa 212 flap control system through mandated inspections."},"complexity_factors":["Very short document (approximately 200 words)","Only 1 defined term implicitly referenced (the technical document COM. 212-206)","Single compliance trigger with simple 'whichever is later' logic","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Straightforward linear structure: applicability → requirement → compliance → background","No nested exceptions or conditional sub-clauses"],"plain_english_summary":"This CASA Airworthiness Directive mandates inspections of the flap control system on CASA 212 series aeroplanes, using the procedure in CASA COM.212‑206 Rev 1 or equivalent non‑destructive tests, to detect cracking or damage that could cause loss of control. It sets initial and recurring inspection timing (first before 20,000 flights or within 2,000 flights after 5 Oct 1989, then at specified intervals). Amendment 1 corrects the inspection interval error in the original AD."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Amdt 1 corrects an inspection interval error in the original AD but does not change applicability or the core inspection requirement. Applicability remains 'All models' and the requirement to inspect the flap control system remains as set out in COM.212‑206 Rev 1 (Applicability; Requirement; Background)."},"complexity_factors":["Depends on external technical documents (COM.212‑206 Rev 1) and NDI manual for inspection methods (Requirement).","Compliance timing tied to flight counts and a fixed calendar cutoff (20,000 flights; within 2,000 flights after 5 Oct 1989) which requires record‑keeping (Compliance).","Recurring inspection intervals are specified in an external Requirement Document rather than within the AD, requiring cross‑reference.","Amendment corrects a prior interval error, introducing a need to confirm which interval applies to current maintenance cycles (Background).","Operational burden falls on aircraft operators/owners to schedule, perform and pay for inspections; technical competence/NDI capability required."],"plain_english_summary":"This AD requires operators of CASA 212 series aeroplanes to inspect the flap control system using CASA document COM.212‑206 Revision 1 and the C212 Non‑Destructive Inspection Manual (27‑50‑01 to 27‑50‑05) (Requirement). Inspections must be done before accumulating 20,000 flights or within 2,000 flights after 5 October 1989, then at the intervals set out in the Requirement Document; operators must schedule and fund the inspections. Amdt 1 corrects an earlier inspection‑interval error (Compliance; Background)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-casa-13-amdt-1-flap-control-system","history":"/api/acts/ad-casa-13-amdt-1-flap-control-system/history","analysis":"/api/acts/ad-casa-13-amdt-1-flap-control-system/analysis","conflicts":"/api/acts/ad-casa-13-amdt-1-flap-control-system/conflicts","importantCases":"/api/acts/ad-casa-13-amdt-1-flap-control-system/important-cases","documents":"/api/acts/ad-casa-13-amdt-1-flap-control-system/documents"}}