{"id":"F2006B02379","name":"AD/AMD 50/12 - Right Hand Electrical Cabinet Wiring Harness","slug":"ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41609,"registerId":"commonwealth-F2006B02379-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AMD 50/12 - Right Hand Electrical Cabinet Wiring Harness","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)  \nAMD Falcon 50 and 900 Series Aeroplanes\n\nAD/AMD 50/12 Right Hand Electrical Cabinet Wiring Harness 8/96\n\nApplicability: This Directive is applicable to Mystere-Falcon 50 aeroplanes with equipment racks fitted between frames 9 and 11, aft of the right hand electrical cabinet.\n\nRequirement: Action in accordance with Dassault Aviation Falcon 50 Mandatory Service Bulletin F50-256 dated 24 April 1996.\n\nNote: DGAC AD 96-094-017(B) dated 24 April 1996 refers.\n\nCompliance: Within 300 hours time in service after 18 July 1996 or prior to 31 December 1996, whichever occurs first.\n\nBackground: This Directive is issued following a report from Dassault Aviation advising of an incident resulting from a chafed wiring harness aft of the right hand electrical cabinet. The actions specified by this Directive are designed to decrease the likelihood of wire harness chafing occurring in this area.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive is focused and prescriptive about a specific wiring‑harness chafing risk on a defined subset of Falcon 50 aeroplanes and requires the manufacturer’s specified corrective actions within a limited compliance window. The instrument text contains no indication that the scope of affected aircraft or required actions was altered from the stated objective of addressing the reported chafing incident (Applicability / Requirement / Background)."},"complexity_factors":["Narrow technical applicability (applies only to Falcon 50 aeroplanes with equipment racks between frames 9 and 11, aft of the right hand electrical cabinet) (Applicability)","Dependence on an external technical document (Dassault Aviation Mandatory Service Bulletin F50-256) for the required actions (Requirement)","Time‑limited compliance window with a dual condition (within 300 hours TIS after 18 July 1996 or prior to 31 December 1996, whichever occurs first) (Compliance)","Reference to a foreign regulator’s AD (DGAC AD 96-094-017(B)), creating cross‑jurisdictional technical linkage (Note)","Technical work likely requires maintenance competence and resources, creating operational scheduling considerations (Requirement / Compliance)"],"plain_english_summary":"Requires operators of Dassault Mystere‑Falcon 50 aeroplanes with equipment racks between frames 9 and 11 (aft of the right‑hand electrical cabinet) to carry out Dassault Mandatory Service Bulletin F50‑256 to address a wiring‑harness chafing risk. Compliance is within 300 flight hours after 18 July 1996 or by 31 December 1996, whichever is earlier. Maintenance labour, parts and downtime costs are borne by the aircraft owner/operator."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific wiring issue on a specific aircraft type. It has not expanded beyond its original purpose of mandating inspection/modification to prevent wiring harness chafing."},"complexity_factors":["Single, specific applicability criterion (equipment racks between frames 9-11)","Only one substantive requirement (comply with referenced service bulletin)","No defined terms section — uses plain technical language","Simple compliance deadline (300 hours or fixed date, whichever first)","No cross-references to other legislation beyond the parent Civil Aviation Regulations","Background provides clear rationale without legal conditionality"],"plain_english_summary":"This is an **Airworthiness Directive** — essentially a mandatory safety order for aircraft owners and operators. It applies to specific **Dassault Falcon 50 business jets** that have equipment racks installed in a particular section of the aircraft (between frames 9 and 11, behind the right-hand electrical cabinet).\n\n**What it requires:**\n- Aircraft operators must follow the instructions in a **Dassault Aviation service bulletin** (F50-256, dated 24 April 1996)\n- This involves inspecting and likely modifying the wiring harness behind the right-hand electrical cabinet to prevent it from rubbing against nearby surfaces (\"chafing\")\n\n**Why it matters:**\n- A chafed (worn/frayed) wiring harness can cause **electrical failures or fires** in flight\n- Dassault reported an actual incident where this happened, prompting this safety action\n\n**When it had to be done:**\n- Within 300 flight hours after 18 July 1996, **or** before 31 December 1996 — whichever came first\n\n**Who needs to know:**\n- Owners and operators of affected Falcon 50 aircraft\n- Maintenance engineers servicing these aircraft\n- The Civil Aviation Safety Authority (CASA) enforces compliance"}},"importantCases":[],"_links":{"self":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness","history":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness/history","analysis":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness/analysis","conflicts":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness/conflicts","importantCases":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness/important-cases","documents":"/api/acts/ad-amd-50-12-right-hand-electrical-cabinet-wiring-harness/documents"}}