{"id":"F2006B09497","name":"AD/EMB-110/8 Amdt 5 - Flap Actuators","slug":"ad-emb-110-8-amdt-5-flap-actuators","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54035,"registerId":"commonwealth-F2006B09497-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-110/8 Amdt 5 - Flap Actuators","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)  \nEmbraer EMB-110 (Bandeirante) Series Aeroplanes\n\nAD/EMB-110/8\n\nAmdt 5\n\n  \nFlap Actuators 2/92\n\nApplicability: Model EMB-110, equipped with flap linear actuators EEMCO P/N D-2246-5, D- 2246-6, D-2246-31 and D-2246-41.\n\nNote: Actuators P/N D-2246-3 and D-2246-4 were deleted by the previous issue of this Directive.\n\nRequirement: Inspect and lubricate in accordance with Part I and Part II of Brazil CTA AD 82-07-04 R2 Amdt 39-678.\n\nNote: Embraer SB 110-27-043 Rev 2 refers in part.\n\nCompliance: For Part I of Requirement Document:\n\nAt intervals not to exceed 1500 landings or 12 months after 3 February 1992; whichever occurs first.\n\nFor Part II of Requirement Document:\n\nAt intervals not to exceed 4500 landings or 36 months after 3 February 1992; whichever occurs first.\n\nThe compliance of the previous issue of this Directive was: at intervals not exceeding 1500 landings or 12 months, whichever occurs first.\n\nBackground: An incident occurred where a flap retracted under aerodynamic loads due to the failure of the flap linear actuator ball return tube, which was caused by the ingress of moisture. This resulted in a flap asymmetry situation which affected the safety of the flight.\n\nAmendment 5 is raised to reflect the requirements of the recently issued Country of Origin AD.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2164},"content_quality":"ok","complexity_score":3,"rejection_reason":"","scope_assessment":{"changed":true,"description":"This amendment changes the compliance framework from the previous single-interval requirement (1500 landings/12 months) to a two-tier system with differing intervals for Part I (1500/12) and Part II (4500/36). This reflects updated technical standards from the Brazilian aviation authority (Country of Origin AD) but represents a material change to the original regulatory burden and scheduling structure."},"complexity_factors":["Requires cross-referencing external technical documents (Brazil CTA AD 82-07-04 R2 and Embraer Service Bulletin 110-27-043) not contained within the directive itself","Dual-threshold compliance triggers (cyclical 'landings' vs temporal 'months' with 'whichever occurs first' logic)","Technical part number specificity with historical exclusions noted (deleted P/Ns D-2246-3 and D-2246-4)","Bifurcated requirement structure (Part I vs Part II) with differing compliance intervals"],"plain_english_summary":"This mandatory safety rule requires operators of Embraer EMB-110 Bandeirante aircraft fitted with specified EEMCO flap actuators to carry out regular inspections and lubrication to prevent actuator failure and flap asymmetry. \n\nInspections/lubrication are required at defined short (1,500 landings/12 months) and longer (4,500 landings/36 months) intervals, and must follow the Brazilian AD (CTA AD 82-07-04). It addresses a known moisture-related actuator failure that caused mid‑flight flap collapse."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators","history":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators/history","analysis":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators/analysis","conflicts":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators/conflicts","importantCases":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators/important-cases","documents":"/api/acts/ad-emb-110-8-amdt-5-flap-actuators/documents"}}