{"id":"F2006B04018","name":"AD/BEECH 55/73 - Elevator Control Fittings","slug":"ad-beech-55-73-elevator-control-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43627,"registerId":"commonwealth-F2006B04018-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/73 - Elevator Control Fittings","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 55, 58 and 95-55 (Baron) Series Aeroplanes\n\nAD/BEECH 55/73 Elevator Control Fittings 12/89\n\nApplicability: Models 95-55, 95-A55, 95-B55, 95-B55A with S/Nos TC-1 through TC-1287.\n\nModels 95-C55, 95-C55A, D55, D55A with S/Nos TE-1 through TE-767.\n\nRequirement: 1. Determine the composition (aluminium or magnesium) of the elevator control fittings in accordance with Beechcraft Mandatory Service Bulletin 2242 Revision\n\n    If the fittings are determined to be aluminium, no further action is required by this Directive.\n\n    2. If the fittings are determined to be magnesium, visually inspect in accordance with Beechcraft Mandatory Service Bulletin 2242 Revision 1. Cracked fittings are to be replaced with aluminium fittings before further flight.\n\nNote 1: The installation of aluminium fittings is considered terminating action for this Directive.\n\nNote 2: FAA AD 89-05-02 refers.\n\nCompliance: 1. Prior to exceeding 100 hours’ time in service after 30 November 1989, or at the next scheduled inspection for issue of Maintenance Release after 30 November 1989, whichever occurs later.\n\n2. Prior to exceeding 100 hours’ time in service after 30 November 1989, or at the next scheduled inspection for issue of Maintenance Release after 30 November 1989, whichever occurs later, and thereafter at intervals not exceeding 100 hours’ time in service, until aluminium fittings are installed.\n\nBackground: Country of origin AD. The FAA has received reports of cracking and also failure of magnesium elevator control fittings. In-flight failure could result in loss of the aircraft.","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":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted airworthiness directive addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original purpose of addressing magnesium elevator control fitting failures."},"complexity_factors":["Single discrete safety issue with binary outcome (aluminium vs magnesium)","Only 2 main compliance pathways with clear conditional logic","Cross-reference to one external technical document (Beechcraft Service Bulletin 2242)","Limited applicability scope (8 specific models with defined serial number ranges)","Simple temporal compliance framework (100-hour intervals)","No nested exceptions or complex definitional provisions","Background section provides clear safety rationale"],"plain_english_summary":"This AD affects certain Beechcraft Baron models (95‑55, 95‑A55, 95‑B55, 95‑B55A, 95‑C55, 95‑C55A, D55, D55A) with specific serial numbers and requires checking elevator control fittings per Beechcraft Service Bulletin 2242. If fittings are aluminium, no action; if magnesium, inspect for cracks and replace cracked fittings with aluminium before further flight. It addresses magnesium fitting failure risk that could cause loss of control."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on elevator control fittings of the listed Beechcraft models/serial numbers: determine material, inspect magnesium fittings, and replace cracked fittings with aluminium. There is no expansion beyond those aircraft or parts in the Directive (Applicability; Requirement; Note 1)."},"complexity_factors":["Narrow applicability by model and serial number (Applicability)","Material identification step (must determine aluminium vs magnesium) (Requirement)","Recurring inspection interval (every 100 hours) until retrofit is completed (Compliance)","Replacement with aluminium terminates the requirement (Note 1)","Reliance on Beechcraft Mandatory Service Bulletin 2242 Revision 1 for inspection procedure (Requirement)","Time-bound compliance tied to a historic date, affecting scheduling (Compliance)"],"plain_english_summary":"This Airworthiness Directive tells owners/operators of specified Beechcraft 55/58/95-55 (Baron) aeroplanes to identify whether the elevator control fittings are aluminium or magnesium and, if magnesium, to inspect them for cracks and replace any cracked fittings with aluminium before further flight; fitting aluminium parts ends the inspection requirement. Owners/operators pay for the inspections, recurring 100‑hour checks and any replacement work; compliance deadlines are set relative to 30 November 1989. (Requirement; Compliance; Note 1)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-73-elevator-control-fittings","history":"/api/acts/ad-beech-55-73-elevator-control-fittings/history","analysis":"/api/acts/ad-beech-55-73-elevator-control-fittings/analysis","conflicts":"/api/acts/ad-beech-55-73-elevator-control-fittings/conflicts","importantCases":"/api/acts/ad-beech-55-73-elevator-control-fittings/important-cases","documents":"/api/acts/ad-beech-55-73-elevator-control-fittings/documents"}}