{"id":"F2006B06591","name":"AD/RES/23 - Davis FDC-9400B Series Safety Belts","slug":"ad-res-23-davis-fdc-9400b-series-safety-belts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48404,"registerId":"commonwealth-F2006B06591-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RES/23 - Davis FDC-9400B Series Safety Belts","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nRestraint Equipment\n\nAD/RES/23 Davis FDC-9400B Series Safety Belts 8/89\n\nApplicability: All Davis FDC-6400B series safety belts with part numbers listed in Requirement document.\n\nRequirement: Remove from service all safety belts listed in Davis Aircraft Products SB No. 1 and replace with an approved safety belt.\n\nNote 1: The removed belt may be modified by replacing the adapter in accordance with the Davis Service Bulletin.\n\nNote 2: FAA AD 89-09-02. Amdt 39-6102 refers.\n\nCompliance: Within 100 hours time in service after 10 August, 1989 or at the next scheduled inspection for Maintenance Release issue after 10 August 1989 whichever is later.\n\nBackground: Davis has received reports of cracks in the buckle cover latch. Potential exists for the buckle release mechanism to jam under emergency evacuation conditions.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2286},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to be the original 1989 directive as issued, maintaining its original narrow scope addressing a specific safety defect in particular Davis safety belt models."},"complexity_factors":["Single, unambiguous operative requirement (remove/replace) with one permitted alternative (modification)","External reference to manufacturer Service Bulletin for specific part number identification","Standard aviation compliance formula comparing accumulated flight hours against scheduled maintenance events","Brief explanatory background without nested exceptions"],"plain_english_summary":"This directive **grounds specific aircraft seatbelts** because they could trap occupants during an emergency evacuation.\n\n**What it does:** Orders aircraft operators to immediately stop using certain Davis safety belts (specific part numbers are listed in the manufacturer's Service Bulletin No. 1). Reports indicate cracks in the buckle cover latch that could cause the release mechanism to jam, potentially trapping passengers and crew in their seats during an emergency.\n\n**Who must act:** Anyone operating aircraft equipped with these specific Davis FDC series safety belts.\n\n**What you must do:** Remove the faulty belts from service and replace them with approved alternatives. Alternatively, you may modify the removed belts by replacing the adapter component according to the manufacturer's Service Bulletin instructions.\n\n**Deadline:** Complete the replacement or modification within 100 hours of flight time after 10 August 1989, or at the next scheduled maintenance inspection—whichever occurs later."}},"importantCases":[],"_links":{"self":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts","history":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts/history","analysis":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts/analysis","conflicts":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts/conflicts","importantCases":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts/important-cases","documents":"/api/acts/ad-res-23-davis-fdc-9400b-series-safety-belts/documents"}}