{"id":"F2006B04034","name":"AD/BEECH 55/88 - Rudder Bellcrank Interconnect Tube","slug":"ad-beech-55-88-rudder-bellcrank-interconnect-tube","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43643,"registerId":"commonwealth-F2006B04034-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/BEECH 55/88 Rudder Bellcrank Intercon","sectionType":"part","heading":"AD/BEECH 55/88 Rudder Bellcrank Interconnect Tube 3/2001","content":"# AD/BEECH 55/88 Rudder Bellcrank Interconnect Tube 3/2001\n\nApplicability: Model 58 aircraft; serial numbers TH-1389, and TH-1396 through TH-1885 Requirement: 1. Inspect the rudder bellcrank interconnect tube for damage in accordance with the\n\nAccomplishment Instructions paragraph of Raytheon Mandatory Service Bulletin\n\nSB 27-3013, Issued: June 2000, and the Baron Model 58 Shop Manual; and ensure the floorboard panel screws are ¾ inch or less in length. Screws that are longer than ¾ inch in length can damage parts installed immediately below the floorboards.\n\n    2. If no damage to the rudder bellcrank interconnect tube is evident, discard any self- tapping coarse thread screw installed in the flanges that is longer than ¾ inch.\n\n    3. If damage to the rudder bellcrank interconnect tube is evident, and the damage has not worn into the aluminium interconnect tube, refinish the interconnect tube and discard any self-tapping coarse thread screw installed in the flanges that is longer than ¾ inch.\n\n    4. If damage to the rudder bellcrank interconnect tube is evident, and the damage has worn into the aluminium interconnect tube, replace the interconnect tube and discard any self-tapping coarse thread screw installed in the flanges that is longer than ¾ inch.\n\n    5. Plug the floorboard screw hole.\n\nNote: FAA AD 2000-22-18 Amendment 39-11965 refers.\n\nCompliance: Within 6 calendar months after 22 March 2001, unless already accomplished.\n\nAccomplish all follow-on actions, such as replacement or repair, before further flight after the inspection.\n\nThis Airworthiness Directive becomes effective on 22 March 2001.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive targets a specific unsafe condition on identified Model 58 serial numbers and prescribes inspection and remedial steps. The text contains no indication the scope has been broadened beyond that original corrective intent; it does not add other models or unrelated obligations."},"complexity_factors":["Narrow applicability to specific Model 58 serial numbers reduces administrative scope (Applicability).","Prescriptive, step-based requirements (inspect, discard, refinish, replace, plug) simplify compliance actions (Requirement paragraphs 1–5).","Compliance deadline is a single fixed interval (six calendar months), plus an immediate before‑next‑flight requirement for follow‑on actions (Compliance).","Dependence on Raytheon Mandatory Service Bulletin SB 27-3013 and the Baron Model 58 Shop Manual requires access to and interpretation of external technical documents (Requirement).","Measurement/verification of screw length (¾ inch threshold) introduces a minor tooling/inspection burden and potential for disagreement over conforming fasteners (Requirement).","Possible need to source replacement interconnect tubes may introduce logistical delays and cost for affected operators (Requirement 4).","Cross-reference to FAA AD 2000-22-18 requires confirmatory cross-checking of related foreign-airworthiness material (Note)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Beech Model 58 aircraft to inspect the rudder bellcrank interconnect tube, remove or replace any damage, and discard or replace self-tapping floorboard flange screws longer than ¾ inch. It affects only the listed serial-numbered aircraft and must be done within six calendar months of 22 March 2001, with any required repairs or replacement completed before the next flight. The regulator says the steps are necessary to correct an identified unsafe condition."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific safety defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating inspection and repair of the rudder bellcrank interconnect tube."},"complexity_factors":["Short, single-purpose directive with clear sequential requirements","Only 5 numbered requirements with straightforward conditional logic (if/then structure)","Single defined applicability (specific aircraft model and serial number range)","Minimal cross-referencing (one FAA AD mentioned in a note, one service bulletin incorporated by reference)","No nested exceptions or complex definitional sections","Plain language instructions with technical terms explained through context"],"plain_english_summary":"This AD requires owners/operators of specified Beechcraft Baron 58 serials to inspect the rudder bellcrank interconnect tube for wear caused by overly long floorboard screws, and to correct defects before further flight. If screws exceed 3/4\" they must be removed and the screw hole plugged; damaged tubes must be refinished or replaced as required. The measure prevents loss of rudder control from screw-induced tube damage."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube","history":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube/history","analysis":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube/analysis","conflicts":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube/conflicts","importantCases":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube/important-cases","documents":"/api/acts/ad-beech-55-88-rudder-bellcrank-interconnect-tube/documents"}}