{"id":"F2006B03628","name":"AD/BEECH 1900/10 - Elevator Trim Tab Control Cable","slug":"ad-beech-1900-10-elevator-trim-tab-control-cable","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43218,"registerId":"commonwealth-F2006B03628-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 1900/10 - Elevator Trim Tab Control Cable","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 1900 Series Aeroplanes\n\nAD/BEECH 1900/10 Elevator Trim Tab Control Cable 4/95\n\nTX\n\nApplicability: Model 1900D aircraft with serial numbers UE-1 through UE-131.\n\nRequirement: Accomplish the following in accordance with Beech 1900D Maintenance Manual, part number 129-590000-15A11, Chapters 5-20-07, page 203; 6-40-00, page 3; 6-50-\n\n00, page 16; and 27-30-04, pages 202 and 203:\n\n    Remove access panel Number 333ATC, which is located on the top surface of the horizontal stabiliser, to gain access to the elevator trim tab cable, guides, and pulleys.\n\n    2. Inspect the cable routing to ensure that cables (at the left, right, and crossover pulleys) are correctly routed around the pulleys, within the cable guide pins, and are not contacting any structure.\n\n    3. Replace any cable that is incorrectly routed (cable that does not meet the criteria above) or is chafed.\n\nNote 1: Compliance with all of the procedures in Beech Communique 1900D-112 is considered equivalent to the Requirement of this Directive.\n\nNote 2: FAA Priority Letter AD 95-02-17 refers.\n\nCompliance: Unless already accomplished, prior to further flight after 1 February 1995.\n\nBackground: The FAA received a report of an in-flight separation of the elevator trim tab control cable on a Beech 1900D aircraft. An investigation revealed that the trim tab control cable had separated in the vicinity of its guide pulley, due to being incorrectly routed outside the lower cable pulley guard pin instead of under the guard pin.\n\nFederal Register of Legislative Instruments F2006B03628","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope — addressing a specific mechanical defect on a specific aircraft model. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, specific mechanical issue (one cable system on one aircraft model)","Clear, step-by-step procedural requirements (3 numbered steps)","Only 2 defined terms (applicability and compliance date)","No nested exceptions or conditional logic","Short document (approximately 250 words)","Single cross-reference to equivalent FAA directive"],"plain_english_summary":"This CASA Airworthiness Directive orders operators of Beechcraft 1900D aircraft (serials UE‑1 through UE‑131) to inspect and, if needed, replace the elevator trim-tab control cable because an FAA-reported incorrect routing caused in‑flight cable separation. It’s a mandatory safety action—aircraft may not fly after 1 February 1995 until the inspection and any corrective work are completed—to prevent loss of pitch control from cable failure."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope is limited to Beech 1900D aircraft serial numbers UE-1 through UE-131 as stated. The directive's background explains the safety reason but does not expand or narrow the AD's applicability beyond the specified aircraft or add additional obligations."},"complexity_factors":["Narrow applicability: single model and limited serial-number range (UE-1 to UE-131).","Procedural specificity: requires following particular maintenance manual chapters and pages.","Short compliance window: action required prior to next flight after specified date.","Operational burden: physical access (remove panel 333ATC), inspection of routing around pulleys, and potential cable replacement and associated labour/downtime.","Cross-references: equivalence to Beech Communique 1900D-112 and reference to FAA Priority Letter AD 95-02-17 increase reliance on external documents."],"plain_english_summary":"Requires operators of Beechcraft 1900D aircraft (serials UE-1 through UE-131) to remove the horizontal stabiliser access panel, inspect the elevator trim tab control cable routing and pulleys, and replace any cable that is misrouted or chafed. Compliance (or following Beech Communique 1900D-112) is required before the next flight after 1 February 1995. Owners/operators pay for inspection, any replacement parts and downtime; the directive responds to a reported in-flight cable separation caused by incorrect routing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable","history":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable/history","analysis":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable/analysis","conflicts":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable/conflicts","importantCases":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable/important-cases","documents":"/api/acts/ad-beech-1900-10-elevator-trim-tab-control-cable/documents"}}