{"id":"F2006B02882","name":"AD/B737/18 Amdt 1 - Take-Off Warning","slug":"ad-b737-18-amdt-1-take-off-warning","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42224,"registerId":"commonwealth-F2006B02882-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B737/18 Amdt 1 - Take-Off Warning","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)  Boeing 737 Series Aeroplanes\n\n \n\n# AD/B737/18\n\nAmdt 1\n\nApplicability: All model 737 aircraft. Requirement:  Either:\n\n# Take-Off Warning 6/96\n\n1. Action in accordance with FAA AD 88-22-09 Amdt 39-6054; or\n\n\n \n\n2.    Where a Take-off Configuration Warning System (TOCWS) Aural Warning Module part number 69-78214-1 is installed on the aeroplane, perform an operational and functional check of the TOCWS in accordance with Boeing Service Letter 737-SL-31-034 dated 31 May 1995.\n\n \n\nCompliance:   For Requirement 1 - This compliance remains unchanged as `Within 200 hours time in service from 9 December 1988 and thereafter at intervals not exceeding 200 hours time in service’.\n\n \n\nFor Requirement 2 - Effective 23 May 1996, initially within 500 hours time in service from a check in accordance with Requirement 1 and thereafter at intervals not to exceed 500 hours time in service.\n\n \n\nBackground: A significant number of take-off configuration warning systems were discovered to be inoperative during a one-time inspection of all Boeing 727 aircraft. This amendment introduces an alternate method of compliance, with an extension of the repetitive check period.\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\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2174},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment introduces an alternative compliance pathway that extends the inspection interval from 200 to 500 hours for aircraft with specific hardware configurations (part number 69-78214-1), whereas the original directive required compliance with the FAA directive at 200-hour intervals only."},"complexity_factors":["Technical aviation terminology requiring specialized knowledge (TOCWS, time in service, specific part numbers)","Conditional compliance structure dependent on installed hardware configuration","Cross-references to external technical documents (FAA Airworthiness Directive and Boeing Service Letter)","Layered compliance intervals with dependencies (500-hour cycle only available after initial 200-hour check)"],"plain_english_summary":"This amendment requires operators of all Boeing 737s to regularly test the Take-Off Configuration Warning System (TOCWS), the alarm that warns if the airplane isn’t configured correctly for takeoff. Operators may follow the original FAA method (checks every 200 flight hours) or, for aircraft fitted with a specified warning module (P/N 69-78214-1) and after one initial original-method check, use Boeing Service Letter 737-SL-31-034 to inspect every 500 hours. It reduces maintenance burden while keeping a critical safety check in place."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-18-amdt-1-take-off-warning","history":"/api/acts/ad-b737-18-amdt-1-take-off-warning/history","analysis":"/api/acts/ad-b737-18-amdt-1-take-off-warning/analysis","conflicts":"/api/acts/ad-b737-18-amdt-1-take-off-warning/conflicts","importantCases":"/api/acts/ad-b737-18-amdt-1-take-off-warning/important-cases","documents":"/api/acts/ad-b737-18-amdt-1-take-off-warning/documents"}}