{"id":"F2006B03744","name":"AD/BEECH 23/30 - Flap Cable Block","slug":"ad-beech-23-30-flap-cable-block","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43337,"registerId":"commonwealth-F2006B03744-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 23/30 - Flap Cable Block","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)  Beechcraft 19, 23 and 24 Series Aeroplanes\n\n \n\nAD/BEECH 23/30 Flap Cable Block 7/76\n\nApplicability: All models B19 with S/Nos. MB-732 to MB-788; C23 with S/Nos. M-1600 to M- 1769; B24R with S/Nos. MC-305 to MC-398; which are equipped with mechanical flaps.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0831-161.\n\n \n\nNote: FAA AD 76-10-09 refers.\n\n \n\nCompliance: Within 100 hours time in service after 30 July 1976.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1976 with a narrow, specific scope (particular serial numbers of particular aircraft models). It has not expanded beyond its original purpose of mandating a specific mechanical inspection/repair."},"complexity_factors":["Very short document (approximately 150 words)","Only 4 defined elements: applicability (3 aircraft models with serial number ranges), one requirement (reference to external service instruction), one compliance deadline, and one cross-reference to FAA AD","No nested conditional logic or exceptions","Single straightforward obligation with clear deadline","Minimal cross-referencing (only to external manufacturer document and FAA AD for context)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain **Beechcraft aeroplanes** to perform a specific safety fix on the **flap cable block** (a component that helps control the aircraft's flaps — the movable surfaces on the wings that help with takeoff and landing).\n\n**Who it affects:**\nSpecific Beechcraft models with particular serial numbers:\n- **Model B19** (serial numbers MB-732 to MB-788)\n- **Model C23** (serial numbers M-1600 to M-1769)  \n- **Model B24R** (serial numbers MC-305 to MC-398)\n\nOnly applies to planes with **mechanical flaps** (not electric or hydraulic systems).\n\n**What must be done:**\nFollow the instructions in **Beechcraft Service Instruction No. 0831-161** — a technical document from the manufacturer detailing exactly how to inspect or fix the flap cable block.\n\n**When it must be done:**\nWithin **100 hours of flying time** after 30 July 1976.\n\n**Why it matters:**\nFlap cable blocks are critical for safe flight. If they fail, pilots could lose control of the flaps, making takeoff and landing dangerous. This AD ensures a known safety defect gets fixed before it causes an accident. The reference to \"FAA AD 76-10-09\" shows this aligns with a matching US safety order, indicating the problem was serious enough to warrant international coordination."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD, as presented, applies to the specific models and serial numbers listed and mandates the action in Beechcraft SI No. 0831-161 within 100 hours time in service after 30 July 1976. The source text does not indicate any change to that scope."},"complexity_factors":["Narrow, specific applicability: particular models and serial-number ranges (Applicability).","Single mandatory action but technical detail is in an external manufacturer service instruction (Requirement), requiring access to that document.","Fixed compliance window tied to a historical date and a short hours threshold (100 hours after 30 July 1976) (Compliance).","Cross-reference to an external regulatory document (FAA AD 76-10-09) increases lookup requirements (Note).","No alternative compliance routes or exemptions stated in the AD text, so compliance depends on following the referenced SI exactly (Requirement)."],"plain_english_summary":"This AD mandates that operators of specified Beechcraft B19, C23 and B24R serial-number ranges perform the flap cable block work described in Beechcraft Service Instruction No. 0831-161 within 100 hours time-in-service after 30 July 1976. It applies only to the listed aircraft, references FAA AD 76-10-09, and makes compliance — and associated parts, labor, and downtime costs — the responsibility of the aircraft owner/operator."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-30-flap-cable-block","history":"/api/acts/ad-beech-23-30-flap-cable-block/history","analysis":"/api/acts/ad-beech-23-30-flap-cable-block/analysis","conflicts":"/api/acts/ad-beech-23-30-flap-cable-block/conflicts","importantCases":"/api/acts/ad-beech-23-30-flap-cable-block/important-cases","documents":"/api/acts/ad-beech-23-30-flap-cable-block/documents"}}