{"id":"F2006B04276","name":"AD/BEECH 90/93 - Inspection for Flight Control Interference with Wiring","slug":"ad-beech-90-93-inspection-for-flight-control-interference-with-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44082,"registerId":"commonwealth-F2006B04276-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 90/93 - Inspection for Flight Control Interference with Wiring","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 90 and 65-90 (King Air) Series Aeroplanes\n\n \n\n# AD/BEECH 90/93 Inspection for Flight Control\n\nInterference with Wiring\n\nApplicability: This Directive is applicable to the following aircraft\n\n \n\nModel Serial Numbers\n\n# 7/99 DM\n\n \n\nC90A  LJ-1459 through LJ-1504 inclusive, LJ-1506 through LJ-1523 inclusive, and LJ-1525 through LJ-1530 inclusive.\n\n \n\nRequirement: Unless previously accomplished;\n\n \n\n1. Inspect for interference or inadequate clearance between the flight control mechanism and any component located forward of the instrument in accordance with Raytheon Mandatory Service Bulletin (SB) 27-3232 dated March 1999.\n\n\n \n\n2.    If interference or inadequate clearance is found during the Requirement 1 inspection then secure all components clear of the flight control mechanisms in accordance with SB 27-3232.\n\n \n\nNote 1. If Raytheon Safety Communiqué No 149 dated August 1998 or No 149 Rev 1 dated November 1998 has been carried out no further action is required.\n\n \n\nNote 2. FAA AD 99-09-15 refers.\n\n \n\nCompliance: 1. Within 25 hours’ time in service after 19 May 1999.\n\n \n\n2. Prior to further flight after inspection\n\n \n\nThis Airworthiness Directive becomes effective on 19 May 1999.\n\n \n\nBackground: There has been a reported incident were a Raytheon Beech Model 1900 aeroplane temporarily lost aileron and elevator control when the control column became restricted. Upon investigation the cause was found to be electrical/avionics wiring located forward of the instrument panel entangled in the flight control system “T” column.\n\n \n\n \n\n \n\n \n\n \n\n \n","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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive's scope aligns with its stated safety objective: a targeted, time-limited inspection and correction requirement for listed serial numbers using SB 27-3232. It does not broaden obligations beyond the inspection and securing of components forward of the instrument panel, nor does it impose ongoing monitoring or unrelated mandates."},"complexity_factors":["Narrow applicability: limited to Beechcraft C90A aircraft and specified serial numbers (Applicability section).","Simple prescriptive action: one-off inspection and securing of components (Requirement 1–2).","Dependency on external technical document: requires compliance with Raytheon Mandatory Service Bulletin SB 27-3232 (Requirement text).","Short compliance window: 25 hours’ time in service from 19 May 1999 (Compliance 1).","Operational stoppage risk: corrective action required prior to further flight if interference is found (Compliance 2).","Exemptions/previous compliance: if Raytheon Safety Communiqué No 149 or Rev 1 already carried out, no further action (Note 1).","Cross-reference to FAA AD 99-09-15 creates regulatory alignment but adds an external standard to consider (Note 2)."],"plain_english_summary":"Requires operators of specified Beechcraft C90A serial numbers to inspect for interference or inadequate clearance between flight control mechanisms and any component forward of the instrument panel, and to secure any wiring or components found, following Raytheon Mandatory Service Bulletin SB 27-3232. Must be done within 25 hours’ time-in-service after 19 May 1999, and aircraft must not fly again until corrections are made. The measure responds to a reported incident of a control-column restriction by avionics wiring; owners/operators bear inspection, rectification and downtime costs."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific mechanical interference issue in a limited fleet of aircraft. The scope remains precisely focused on the original safety concern — preventing flight control restriction from wiring interference — with no evidence of scope creep or expansion beyond this specific airworthiness issue."},"complexity_factors":["Very short document (under 400 words)","Only 2 substantive requirements with clear conditional logic (if interference found, then fix)","Single defined applicability criterion (specific serial number ranges)","Minimal cross-referencing (only 2 external documents: SB 27-3232 and FAA AD 99-09-15)","Simple compliance structure with single deadline and one conditional deadline","No nested exceptions or complex definitions section"],"plain_english_summary":"This AD requires owners/operators of certain Beechcraft King Air C90A aircraft (specified serial numbers) to inspect forward of the instrument panel for wiring or components that could foul the flight controls, and to rectify any interference before further flight. Prompted by an incident of wires jamming flight controls on a similar aircraft, the inspection must be done within 25 flight hours after 19 May 1999; aircraft already modified per Raytheon Safety Communiqué No. 149 (or revision) are exempt."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring","history":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring/history","analysis":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring/analysis","conflicts":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring/conflicts","importantCases":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring/important-cases","documents":"/api/acts/ad-beech-90-93-inspection-for-flight-control-interference-with-wiring/documents"}}