{"id":"F2006B03889","name":"AD/BEECH 36/34 - Elevator Control Fittings","slug":"ad-beech-36-34-elevator-control-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43498,"registerId":"commonwealth-F2006B03889-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 36/34 - 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 36 (Bonanza) Series Aeroplanes\n\nAD/BEECH 36/34 Elevator Control Fittings 12/89\n\nApplicability: Models 36 with S/Nos E-1 through E-184.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a defined aircraft population. It has not expanded beyond its original purpose of mandating inspection and replacement of defective elevator control fittings."},"complexity_factors":["Very short document (under 300 words)","Only 2 defined applicability criteria (model and serial number range)","Simple binary decision tree (aluminium vs magnesium)","Single cross-reference to FAA AD 89-05-02 (informational only)","Clear compliance deadlines with straightforward alternatives (100 hours OR next inspection)","No nested exceptions or conditional sub-clauses"],"plain_english_summary":"This CASA Airworthiness Directive mandates checks on elevator control fittings for early Beechcraft Bonanza 36s (S/N E‑1 to E‑184) because some were built with magnesium fittings that can crack and fail, risking loss of pitch control.  \n\nOperators must determine fitting material, inspect magnesium fittings regularly (100‑hour intervals) and replace any cracked magnesium fittings with aluminium before next flight — preventing catastrophic in‑flight control failure."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive, as written, applies to Model 36 aircraft with serial numbers E-1 through E-184 and mandates material identification, inspection, and replacement until aluminium fittings are fitted. The text shows this is a corrective safety action following FAA reports of magnesium fitting failures (Applicability; Requirement; Compliance; Background); there is no indication within the instrument that its scope was altered from that stated here."},"complexity_factors":["Narrow applicability to specific airframe models and serial numbers (Applicability).","Binary material test (aluminium vs magnesium) — simple determination but requires following Beechcraft Mandatory Service Bulletin 2242 Rev 1 (Requirement 1).","Immediate corrective step if magnesium is present: inspection and replacement of cracked fittings before further flight (Requirement 2).","Recurring compliance interval until terminating action (aluminium fittings installed) — initial and repeat 100-hour inspection cycle (Compliance; Note 1).","Dependence on an external service bulletin for inspection method and criteria introduces implementation dependency (Requirement; Beechcraft Mandatory Service Bulletin 2242 Rev 1).","Safety-critical consequence if ignored (reported cracking/failure could cause in‑flight loss) increases enforcement priority (Background).","Compliance timing anchored to a specific date increases administrative tracking (Compliance: 'after 30 November 1989')."],"plain_english_summary":"This airworthiness directive requires owners/operators of Beechcraft 36 aeroplanes (S/N E-1–E-184) to determine whether elevator control fittings are aluminium or magnesium per Beechcraft Mandatory Service Bulletin 2242 Rev 1. If fittings are magnesium, the fittings must be inspected and any cracked fittings replaced with aluminium before further flight; installing aluminium fittings ends the directive. Compliance must occur within 100 hours time-in-service after 30 November 1989 or at the next maintenance-release inspection, and, if magnesium fittings remain, inspections repeat every 100 hours until replacement (Requirement; Compliance; Background)."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-36-34-elevator-control-fittings","history":"/api/acts/ad-beech-36-34-elevator-control-fittings/history","analysis":"/api/acts/ad-beech-36-34-elevator-control-fittings/analysis","conflicts":"/api/acts/ad-beech-36-34-elevator-control-fittings/conflicts","importantCases":"/api/acts/ad-beech-36-34-elevator-control-fittings/important-cases","documents":"/api/acts/ad-beech-36-34-elevator-control-fittings/documents"}}