{"id":"F2006B03693","name":"AD/BEECH 200/36 Amdt 1 - Horizontal Stabiliser Forward Spar Web Rivets","slug":"ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43283,"registerId":"commonwealth-F2006B03693-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 200/36 Amdt 1 - Horizontal Stabiliser Forward Spar Web Rivets","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)  \nBeechcraft 200 (Super King Air) Series Aeroplanes\n\nAD/BEECH 200/36\n\nAmdt 1\n\n  \n\nHorizontal Stabiliser Forward Spar Web Rivets\n\n  \n4/94\n\nApplicability: Model 200 and B200 with serial numbers BB-2 through BB-785.\n\nModel 200C with serial numbers BL-1 through BL-17.\n\nModel 200T with serial numbers BT-1 through BT-16, and BT-18.\n\nRequirement: Action in accordance with Beechcraft Service Instruction 1192.\n\nCompliance: Prior to the accumulation of 2000 hours time in service, and thereafter at intervals not to exceed 500 hours time in service, until all rivets are replaced with screws in accordance with the Requirement Document.\n\nThe compliance time of the initial issue of this Directive was 31 October 1981\\. This Amendment is effective from 31 March 1994.\n\nBackground: Rivets were found to be “working” in the horizontal stabiliser forward spar web.\n\nAmendment 1 is issued to introduce a terminating action for the on-going repetitive inspections.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Yes. The original directive imposed recurring inspections; Amendment 1 added a defined terminating action — replacing rivets with screws per Beechcraft Service Instruction 1192 — so inspections continue only until that replacement occurs (see Compliance: \"...and thereafter at intervals not to exceed 500 hours... until all rivets are replaced with screws...\"). The amendment expressly states it \"is issued to introduce a terminating action for the on-going repetitive inspections\" and sets the amendment effective date (\"This Amendment is effective from 31 March 1994\")."},"complexity_factors":["Narrow applicability: specific serial-number ranges for Model 200, B200, 200C and 200T (\"Applicability: Model 200 and B200 with serial numbers BB-2 through BB-785. Model 200C ... BL-1 through BL-17. Model 200T ... BT-1 through BT-16, and BT-18.\").","Prescriptive compliance timing: initial and repetitive inspection schedule is explicit (\"Prior to the accumulation of 2000 hours time in service, and thereafter at intervals not to exceed 500 hours time in service...\").","Terminating action introduced: replaces indefinite repetitive inspections once rivets are replaced with screws (\"until all rivets are replaced with screws ...\"; \"Amendment 1 is issued to introduce a terminating action for the on-going repetitive inspections.\").","Mandatory method specified: work must follow Beechcraft Service Instruction 1192 (\"Requirement: Action in accordance with Beechcraft Service Instruction 1192.\").","Who pays / who acts: owners/operators of affected aircraft bear inspection and replacement costs and must schedule the work (implied by Applicability, Requirement and Compliance paragraphs).","Administrative timeline: amendment and original compliance dates are specified, creating a history and fixed effective dates (\"The compliance time of the initial issue ... 31 October 1981. This Amendment is effective from 31 March 1994.\").","Low regulatory discretion: the AD prescribes the action, intervals and terminating measure, leaving little procedural choice to operators beyond timing and contractor selection."],"plain_english_summary":"This airworthiness directive requires owners/operators of specific Beechcraft 200-series aeroplanes to inspect the horizontal stabiliser forward spar web rivets and, ultimately, replace them with screws following Beechcraft Service Instruction 1192. Initial inspection is required before 2,000 flight hours and then every 500 hours until the rivets are replaced; Amendment 1 introduces that replacement as the terminating action. It affects operators of the listed serial-numbered aircraft and matters for ongoing maintenance scheduling and airworthiness compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the 1981 directive. It does not expand applicability to new aircraft models or introduce new inspection requirements. The amendment solely adds a terminating condition (replacement of rivets with screws) to end the repetitive inspection cycle, which is a natural completion of the original safety purpose rather than scope creep."},"complexity_factors":["Very short document (under 200 words)","Only 3 defined applicability criteria (specific aircraft models and serial number ranges)","Single requirement referencing external technical document (Beechcraft Service Instruction 1192)","Simple compliance structure: initial deadline + recurring interval + terminating condition","No nested exceptions, cross-references to other legislation, or conditional logic beyond the serial number applicability","Straightforward amendment purpose (adding terminating action to existing directive)"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for specific **Beechcraft 200 series aircraft** (Super King Air models).\n\n**What it does:**\n- Requires owners/operators to inspect rivets in the **horizontal stabiliser forward spar web** (a critical structural component at the tail of the plane that helps keep the aircraft stable in flight)\n- The inspections must follow **Beechcraft Service Instruction 1192** (the manufacturer's official repair guide)\n\n**Who it affects:**\n- Specific Beechcraft 200, 200C, and 200T aircraft with particular serial numbers (roughly 800+ aircraft in the 200 series, plus limited numbers of the cargo and survey variants)\n\n**What must be done:**\n- **First inspection:** Before the aircraft reaches 2,000 flight hours\n- **Repeat inspections:** Every 500 flight hours thereafter\n- **Until:** All rivets are replaced with screws (this \"terminating action\" ends the need for repeated inspections)\n\n**Why it matters:**\nRivets were found to be **\"working\"** (loosening or moving under stress) in this critical structural area. Loose rivets in the tail section could compromise aircraft control and safety. This directive ensures the problem is caught early through repeated checks, with a permanent fix (replacing rivets with screws) ending the inspection cycle.\n\n**Key change in this amendment:**\nThe original 1981 directive required endless repetitive inspections. This 1994 amendment adds a way to **stop the inspections permanently** once the rivets are replaced with screws."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets","history":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets/history","analysis":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets/analysis","conflicts":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets/conflicts","importantCases":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets/important-cases","documents":"/api/acts/ad-beech-200-36-amdt-1-horizontal-stabiliser-forward-spar-web-rivets/documents"}}