{"id":"F2006B04142","name":"AD/BEECH 65/45 Amdt 2 - Fuselage Rear Bulkhead","slug":"ad-beech-65-45-amdt-2-fuselage-rear-bulkhead","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43867,"registerId":"commonwealth-F2006B04142-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 65/45 Amdt 2 - Fuselage Rear Bulkhead","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 65 and 70 (Queen Air) Series Aeroplanes\n\nAD/BEECH 65/45\n\nAmdt 2\n\n  \nFuselage Rear Bulkhead 3/89\n\nApplicability: All models Queen Air 65, A65 & A65-8200 with S/Nos. L-1, L-2, L-6, LF-7, LF-8 & LC-1 to LC-335;\n\nAll models 65- 80, 65-A80, 65-A80-8800 & 65-B80 with S/Nos. LD-1 to LD- 512.\n\nAll models 65-A88 with S/Nos. LP-1 to LP-26, LP-28 & LP-30 to LP-47. Models 70 with S/Nos LB-1 through LB-35.\n\nRequirement: Action in accordance with Beechcraft SI No. 0755-103, Rev. II.\n\nCompliance: Within 100 hours’ time in service after achieving 500 hours’ time in service and thereafter at intervals not exceeding 600 hours’ time in service until modified in accordance with SI No. 0755-103, Rev. II.\n\nBackground: Amendment 2 references Rev II of the SI and consolidates Queen Air series 65 and 70 aircraft.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 2 to an existing Airworthiness Directive. The amendment updates the technical reference to Revision II of the Service Instruction and consolidates coverage across the Queen Air 65 and 70 series. This represents a routine technical update rather than scope creep—the safety purpose (inspecting the rear bulkhead) remains unchanged from the original directive."},"complexity_factors":["Very short document (approximately 200 words)","Only 4 defined elements: applicability (aircraft models/serial numbers), requirement (reference to external technical document), compliance (timing intervals), and background","No nested conditional logic or cross-references to other legislation","Single straightforward requirement with clear timing triggers","No exceptions or exemptions stated"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It mandates safety inspections for specific Beechcraft Queen Air aeroplanes.\n\n**What it does:**\n- Requires owners/operators of certain Beechcraft 65 and 70 series aircraft to inspect the **fuselage rear bulkhead** (the structural wall at the back of the passenger cabin) for cracks or damage.\n- The inspection must follow specific technical instructions from the manufacturer (Beechcraft Service Instruction No. 0755-103, Revision II).\n\n**Who it affects:**\n- Owners and operators of specific Beechcraft Queen Air models (65, A65, 65-80, 65-A80, 65-B80, 65-A88, and 70 series) with particular serial numbers listed in the document.\n\n**When compliance is required:**\n- First inspection: within 100 flight hours after the aircraft reaches 500 total flight hours.\n- Repeat inspections: every 600 flight hours thereafter.\n- The repeated inspections stop once the aircraft is permanently modified according to the manufacturer's instructions.\n\n**Why it matters:**\nThe rear bulkhead is a critical structural component. Cracks in this area could compromise the aircraft's structural integrity and safety. This directive ensures potential defects are caught before they become dangerous."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 2 updates the directive to reference Beechcraft SI No. 0755-103, Revision II and consolidates the Queen Air 65 and 70 series aircraft under this single airworthiness directive, per the Background. The AD therefore changes scope procedurally by combining the series and by specifying Rev. II of the SI as the governing technical document. (Background; Requirement)"},"complexity_factors":["External reference to Beechcraft Service Instruction No. 0755-103, Rev. II for procedural detail (operators must obtain and follow a separate document).","Detailed applicability by multiple models and long serial-number ranges (precision required to determine if an aircraft is affected).","Staged compliance timeline: initial action window tied to aircraft hours (within 100 hours after reaching 500 hours TIS) and recurring intervals (every up to 600 hours TIS) until modification is performed.","Interaction between recurring inspections and an alternative permanent modification (compliance obligations end once modified per the SI).","Amendment consolidates multiple model series into one AD, requiring operators to check consolidation effects on previously separate directives."],"plain_english_summary":"This directive mandates owners/operators of specified Beechcraft Queen Air 65 and 70 aircraft to perform the actions in Beechcraft Service Instruction No. 0755‑103, Revision II, on a schedule starting within 100 flight hours after reaching 500 hours TIS and repeating at intervals not exceeding 600 hours until the SI-required modification is done. Affected operators and their maintenance organisations bear the costs and must obtain and follow the external SI for the technical work."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead","history":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead/history","analysis":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead/analysis","conflicts":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead/conflicts","importantCases":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead/important-cases","documents":"/api/acts/ad-beech-65-45-amdt-2-fuselage-rear-bulkhead/documents"}}