{"id":"F2006B09320","name":"AD/EC 135/6 - SMD45H Display Systems","slug":"ad-ec-135-6-smd45h-display-systems","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53463,"registerId":"commonwealth-F2006B09320-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/EC 135/6 SMD45H Display Systems 13/20","sectionType":"part","heading":"AD/EC 135/6 SMD45H Display Systems 13/2001","content":"# ![](image.003.png)AD/EC 135/6 SMD45H Display Systems 13/2001\n\nDM\n\nApplicability: EC 135 T1, P1 and P2 helicopters Serial Numbers 0005 through 0216 with Central Panel Display Systems (CPDS) installed, equipped with Smart Multifunction Displays SMD45H installed as Primary Flight Displays (PFD) and/or Navigation Display (ND) with Part Numbers listed in Eurocopter Alert Service Bulletin (ASB) EC135-31A-002 Revision 2.\n\nRequirement: 1. Amend the Flight Manual by inserting the appropriate Flight Manual Supplement Amendments attached to ASB EC135-31A-002 Revision 2 as Appendices 1 through 12.\n\n    2. Placard the SMH45H PFDs and NDs in accordance with ASB EC135-31A-002 Revision 2.\n\n    3. Exchange the SMH45H PFDs and NDs in accordance with ASB EC135-31A-002 Revision 2.\n\nNote: LBA AD 2001-306/3 refers.\n\nCompliance: For Requirement 1 \\- Before the next flight after the effective date of this Directive. For Requirement 2 \\- Before the next flight after the effective date of this Directive. For Requirement 3 - Before 31 March 2002.\n\nThis Airworthiness Directive becomes effective on 1 November 2001.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies to the specified EC135 helicopters and SMD45H displays and prescribes Flight Manual amendments, placarding and equipment exchange by set deadlines. The document contains no indication that the applicability or required actions were altered from the AD as issued."},"complexity_factors":["Narrow technical applicability: specific helicopter models, serial-number range and display part numbers","Three distinct mandated actions (manual amendment, placarding, equipment replacement) with different deadlines","High operational urgency for two actions (before next flight) increasing immediate compliance burden on operators","Dependence on an external technical document (Eurocopter ASB EC135‑31A‑002 Rev 2) for procedural detail","Safety-critical avionics replacement may require parts, downtime and certified maintenance resources","Cross-reference to foreign regulator AD (LBA AD 2001-306/3) but no procedural consolidation within this text"],"plain_english_summary":"**This AD requires** operators of EC135 T1, P1 and P2 helicopters (S/N 0005–0216) with Central Panel Display Systems and SMD45H Primary Flight/Navigation Displays to insert Flight Manual supplements, placard the affected displays, and replace those displays per Eurocopter ASB EC135‑31A‑002 Revision 2. The first two actions must be completed before the next flight after the AD takes effect; replacement must be completed by 31 March 2002. Operators bear the cost and must follow the ASB procedures."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific unsafe condition in specific aircraft with specific equipment. The scope remains tightly focused on the SMD45H display systems in early-production EC 135 helicopters as originally intended."},"complexity_factors":["Single, specific aircraft type and serial number range (EC 135 T1/P1/P2, s/n 0005-0216)","Only 3 requirements with clear deadlines","Heavy reliance on external document (Eurocopter ASB EC135-31A-002 Revision 2) for actual technical details","No nested exceptions or conditional logic","Simple compliance structure: immediate (next flight) or fixed date (31 March 2002)","Cross-reference to one German aviation authority document (LBA AD 2001-306/3) noted but not incorporated"],"plain_english_summary":"This CASA Airworthiness Directive mandates safety fixes for Eurocopter EC135 T1/P1/P2 helicopters (S/N 0005–0216) equipped with SMD45H primary flight or navigation displays. It requires immediate flight‑manual revisions and warning placards, and replacement of the affected displays by the stated deadline.\n\nThis AD is legally binding for owners, operators and maintenance engineers because the identified display defect poses an unsafe condition that could affect flight safety."},"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-ec-135-6-smd45h-display-systems","history":"/api/acts/ad-ec-135-6-smd45h-display-systems/history","analysis":"/api/acts/ad-ec-135-6-smd45h-display-systems/analysis","conflicts":"/api/acts/ad-ec-135-6-smd45h-display-systems/conflicts","importantCases":"/api/acts/ad-ec-135-6-smd45h-display-systems/important-cases","documents":"/api/acts/ad-ec-135-6-smd45h-display-systems/documents"}}