{"id":"F2006B03988","name":"AD/BEECH 55/42 Amdt 1 - Strobe Light Bonding Straps","slug":"ad-beech-55-42-amdt-1-strobe-light-bonding-straps","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43597,"registerId":"commonwealth-F2006B03988-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/42 Amdt 1 - Strobe Light Bonding Straps","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 55, 58 and 95-55 (Baron) Series Aeroplanes\n\n \n\nAD/BEECH 55/42\n\nAmdt 1\n\n\nStrobe Light Bonding Straps 1/75\n\n \n\nApplicability: All models 95-B55 and 95-B55A, S/No. TC-1526 thru TC-1804 and TC-1806 thru TC-1811; E55 & E55A, S/No. TE-904 thru TE-1000, TE-1002 and TE-1003; 58 &\n\n58A S/No. TH-303 thru TH-482, and TH-484 thru TH-527, fitted with Grimes P/N 30-0467-1 or Grimes P/N 30-0467-3 Strobe Light Assemblies.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0655-362, Rev. 1. Compliance:  Within 100 hours time in service after 31 January 1975.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, technical safety directive focused on a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of addressing strobe light bonding strap issues in the identified Beechcraft models."},"complexity_factors":["Single, specific technical requirement referencing an external manufacturer document","Narrow applicability limited to specific aircraft models, serial number ranges, and specific part numbers","Simple compliance deadline (100 hours time in service after fixed date)","No defined terms section, no cross-references to other legislation, no conditional exceptions","Extremely short document (approximately 150 words of substantive content)"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or inspections on certain aircraft.\n\n**What it does:** It orders owners and operators of specific Beechcraft Baron twin-engine planes to inspect and fix the **electrical bonding straps** on their strobe lights. Bonding straps are metal connections that prevent dangerous static electricity buildup and ensure proper electrical grounding. If these straps fail, the strobe lights could malfunction or create electrical hazards.\n\n**Who must comply:** Owners of specific Beechcraft 55, 58, and 95-55 series aircraft with particular serial numbers, **only if** they have Grimes strobe light assemblies (part numbers 30-0467-1 or 30-0467-3).\n\n**What action is required:** Follow the instructions in **Beechcraft Service Instruction No. 0655-362, Revision 1** — a technical manual from the manufacturer detailing exactly how to inspect and repair the bonding straps.\n\n**Deadline:** Complete the work within **100 hours of flight time** after 31 January 1975.\n\n**Why it matters:** Faulty bonding straps can cause strobe light failure or electrical interference, potentially creating safety risks during flight — especially at night or in poor visibility when strobes are critical for being seen by other aircraft."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The document is labelled as Amendment 1 to AD/BEECH 55/42 (title: \"AD/BEECH 55/42 Amdt 1\"), which indicates it modifies an earlier version. The source provided does not include the original version or a comparison, so the precise nature of the change in scope or content cannot be determined from the text supplied."},"complexity_factors":["Narrow technical scope (limited to strobe light bonding straps and specific Grimes part numbers).","Precise serial-number ranges for multiple model variants increase administrative checking (Applicability).","Dependency on an external manufacturer service instruction (Beechcraft SI No. 0655-362, Rev. 1) for the substantive work (Requirement).","A fixed compliance window measured in flight hours rather than a calendar date creates operational scheduling complexity (Compliance).","Regulatory provenance requires that operators establish whether the directive applies to each airframe (header and Applicability)."],"plain_english_summary":"This airworthiness directive under the Commonwealth Civil Aviation Regulations requires owners/operators of listed Beechcraft Baron-series aeroplanes fitted with Grimes strobe assemblies (P/N 30‑0467‑1 or 30‑0467‑3) to carry out the work specified in Beechcraft SI No. 0655‑362, Rev. 1 within 100 hours TIS after 31 January 1975.\n\nAffected operators must obtain and pay for the service‑instruction work (targeting strobe light bonding straps), altering maintenance schedules and imposing a flight‑hours compliance deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps","history":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps/history","analysis":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps/analysis","conflicts":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps/conflicts","importantCases":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps/important-cases","documents":"/api/acts/ad-beech-55-42-amdt-1-strobe-light-bonding-straps/documents"}}