{"id":"F2006B04046","name":"AD/BEECH 56/16 - Wing Strobe Lights","slug":"ad-beech-56-16-wing-strobe-lights","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43661,"registerId":"commonwealth-F2006B04046-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 56/16 - Wing Strobe Lights","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 56TC (Turbo Baron) Series Aeroplanes\n\n \n\nAD/BEECH 56/16 Wing Strobe Lights 10/76\n\nApplicability: All models A56TC, S/Nos. TG-84 thru TG-94, that have either Hoskins P/N 30-0187- 21 or Grimes P/N 30-0669-1 wing strobe light installed.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0800-362. Compliance:  Within 100 hours’ time in service after 29 October 1976.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text of this airworthiness directive does not state that it changes the scope of any prior instrument. It sets a standalone, narrowly defined requirement for specified A56TC serial numbers with specified strobe light part numbers and refers implementers to Beechcraft Service Instruction No. 0800-362 for the technical work (Applicability; Requirement; Compliance)."},"complexity_factors":["Very narrow subject matter: single aircraft model series and limited serial number range (TG-84 to TG-94) and two specific part numbers (Hoskins P/N 30-0187-21; Grimes P/N 30-0669-1) (Applicability).","External technical detail withheld: the AD delegates the substantive technical steps to Beechcraft Service Instruction No. 0800-362, so implementers must obtain and follow that separate document (Requirement).","Single, short compliance window defined in service hours (100 hours’ time in service after 29 October 1976) requires accurate time-in-service tracking but imposes a simple numerical deadline (Compliance).","Legal form is straightforward (an AD in the Schedule under Part 39), leaving limited regulatory discretion within the AD text itself (heading; Requirement).","Potential operational scheduling and cost uncertainty because required parts, labour and downtime are not specified in the AD text but in the referenced service instruction (Requirement)."],"plain_english_summary":"This airworthiness directive under Civil Aviation Regulations (Part 39) mandates a technical action for Beechcraft 56TC (Turbo Baron) A56TC aeroplanes, serials TG-84 to TG-94, fitted with specified Hoskins or Grimes wing strobe lights. Owners/operators must carry out Beechcraft Service Instruction No. 0800-362 within 100 hours’ time-in-service after 29 October 1976. The operator bears responsibility and cost; the AD prescribes compliance but not the detailed technical steps."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, targeted airworthiness directive addressing a specific safety issue with specific aircraft and equipment. It has not expanded beyond its original purpose of ensuring the airworthiness of the specified strobe light installations."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 2 defined applicability criteria (aircraft serial number range and specific part numbers)","Single requirement referencing an external document (Beechcraft SI No. 0800-362)","Simple compliance deadline (100 hours time in service after a fixed date)","No cross-references to other legislation or regulations within the text","No conditional logic or exceptions"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:** It requires owners or operators of certain Beechcraft 56TC \"Turbo Baron\" aeroplanes to take specific action regarding their wing strobe lights. The affected planes are those with serial numbers TG-84 through TG-94 that have either Hoskins part number 30-0187-21 or Grimes part number 30-0669-1 wing strobe lights installed.\n\n**The requirement:** Operators must follow the instructions in Beechcraft Service Instruction No. 0800-362. This typically involves inspecting, modifying, or replacing the specified strobe lights to address a safety issue.\n\n**Who it affects:** Owners and operators of the specific Beechcraft 56TC models listed, specifically those 11 aircraft (serial numbers TG-84 to TG-94) with the affected lighting equipment.\n\n**Why it matters:** Wing strobe lights are critical safety equipment that make aircraft visible to other pilots, especially in low-light conditions. This directive addresses a specific defect or safety concern with these particular strobe light models to prevent potential collisions or other safety incidents.\n\n**Deadline:** The work had to be completed within 100 hours of flight time after 29 October 1976."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-56-16-wing-strobe-lights","history":"/api/acts/ad-beech-56-16-wing-strobe-lights/history","analysis":"/api/acts/ad-beech-56-16-wing-strobe-lights/analysis","conflicts":"/api/acts/ad-beech-56-16-wing-strobe-lights/conflicts","importantCases":"/api/acts/ad-beech-56-16-wing-strobe-lights/important-cases","documents":"/api/acts/ad-beech-56-16-wing-strobe-lights/documents"}}