{"id":"F2006B06929","name":"AD/SEATS/23 - SICMA Passenger Seat Central Spreaders","slug":"ad-seats-23-sicma-passenger-seat-central-spreaders","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114814,"registerId":"commonwealth-F2006B06929-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\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.\n\n![](image.001.png)\n\nSeats and Berths","sortOrder":0},{"sectionNumber":"AD/SEATS/23 SICMA Passenger Seat Central","sectionType":"part","heading":"AD/SEATS/23 SICMA Passenger Seat Central Spreaders 3/2003","content":"# AD/SEATS/23 SICMA Passenger Seat Central Spreaders 3/2003\n\nApplicability: All SICMA AERO SEAT seats types 90XX and 92XX with seat part numbers listed in Annex 1 of SICMA AERO SEAT Service Bulletin (SB) 92-25-005, all serial numbers, right side only.\n\nNote: These seats can be found on but not limited to ATR 42 and ATR 72 aircraft.\n\nRequirement: 1. Visually inspect the central spreaders, P/N 92-000100-200-1 or P/N 92-000101- 200-1 of applicable seats in accordance with Part One of SICMA AERO SEAT Service Bulletin (SB) 92-25-005.\n\n    2. If a Type 1 crack exists, provided the crack has not developed beyond the Type 1 criteria, install doublers P/N 00-6536 in accordance with Part Two of SB 92-25- 005.\n\n    3. If a crack of Type 2 or Type 3 is found, replace the affected central spreader by a new one of the same part number, equipped with doubler P/N 00-6536. If a new spreader is unavailable, a temporary repair may be performed by installing doublers P/N 00-6536.\n\n    4. Install doublers P/N 00-6536 on all central spreaders in accordance with Part Two of SB 92-25-005.\n\nNote: Definitions of Type 1, 2 and 3 cracks are given in Part One of SB 92-25-005.\n\nCompliance: 1. Before 500 flight hours after the 20 March 2003 and thereafter at intervals not exceeding 500 flight hours until Requirement 4 is accomplished.\n\n    2. Before a further 6 months or 500 flight hours, whichever occurs first.\n\n    3. Before further flight. The temporary repair referred to in Requirement 3 is limited to 500 flight hours or 6 months, whichever occurs first.\n\n    4. Before 31 January 2006.\n\nNote: DGAC AD 2002-504(AB) dated 2 October 2002 refers.\n\nThis Airworthiness Directive becomes effective on 20 March 2003.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with focused, original scope. It addresses a specific identified safety defect in specific seat models without expanding into broader regulatory territory."},"complexity_factors":["Multiple compliance deadlines with different triggers (flight hours vs calendar dates vs 'before further flight')","Conditional logic based on three crack types (Type 1, 2, 3) with different repair pathways","Cross-reference to external technical document (SICMA Service Bulletin 92-25-005) for inspection procedures and crack definitions","Temporary repair provision with its own limitation period nested within Requirement 3","Specific part number references (P/N 92-000100-200-1, P/N 00-6536) requiring technical lookup","Limited applicability (right side only, specific seat models, specific part numbers in Annex 1 of external document)"],"plain_english_summary":"Australia’s aviation regulator requires operators of ATR 42/72 aircraft with SICMA AERO SEAT 90XX/92XX right-side passenger seats to inspect central spreaders for cracking and to fit reinforcing plates (“doublers”) or replace cracked spreaders to prevent seat failure in turbulence or emergencies.  \n\nInspections must begin promptly and be repeated until all doublers are installed by the deadline; serious cracks must be repaired before flight to protect passenger safety."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD targets the same affected parts and unsafe condition described in the service material: inspections and corrective action for cracked central spreaders on listed SICMA seat part numbers (right side only). It prescribes inspection, repair/replacement, and deadlines consistent with correcting that specific cracking issue and does not expand coverage beyond those seats or add new obligations outside the SB and stated compliance windows."},"complexity_factors":["Dependence on an external document (SICMA SB 92-25-005) for inspection procedures and crack definitions (Requirement & Note).","Multiple part numbers to identify affected parts (central spreaders P/N 92-000100-200-1, 92-000101-200-1; doubler P/N 00-6536) increasing identification tasks (Applicability & Requirement).","Different mandated remedies tied to crack severity (Type 1 → doubler; Type 2/3 → replacement or temporary repair) requiring judgment against SB criteria (Requirement 2–3).","Mixed compliance triggers and limits (inspection intervals of 500 flight hours, a 6‑month or 500‑hour window for follow-up, a temporary repair limited to 500 hours/6 months, and a final deadline of 31 Jan 2006) complicate scheduling and recordkeeping (Compliance).","Applicability limited to right side only yet 'all serial numbers' for listed P/Ns, requiring seat-level identification across fleets (Applicability).","Cross-reference to a foreign AD (DGAC AD 2002-504(AB)) that may require reconciling international documentation (Note)."],"plain_english_summary":"This Airworthiness Directive requires operators of SICMA AERO SEAT passenger seats (types 90XX and 92XX, specified part numbers, right‑side only) to inspect the central spreaders for cracking and to install doublers or replace spreaders per the manufacturer’s Service Bulletin. It sets mandatory inspection intervals, limits for temporary repairs, and a final compliance date.\n\nAircraft operators or maintainers must carry out and pay for the inspections and corrective work within the specified flight‑hour/month limits to address the identified cracking risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders","history":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders/history","analysis":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders/analysis","conflicts":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders/conflicts","importantCases":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders/important-cases","documents":"/api/acts/ad-seats-23-sicma-passenger-seat-central-spreaders/documents"}}