{"id":"F2006B02974","name":"AD/B737/73 - Cabin Overhead Stowage Bins","slug":"ad-b737-73-cabin-overhead-stowage-bins","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42333,"registerId":"commonwealth-F2006B02974-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B737/73 - Cabin Overhead Stowage Bins","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\nAD/B737/73 Cabin Overhead Stowage Bins 2/93\n\nApplicability: Model 737 series as listed in Boeing ASB 737-25A1283 Revision 1, Boeing SB 737- 25-1291 and Boeing SB 737-25-1294.\n\n \n\nRequirement: Action in accordance with the technical requirements of FAA AD 92-19-16 Amdt 39- 8374.\n\n \n\nCompliance: Unless already accomplished, as specified in the Requirement Document.\n\n \n\nBackground: The FAA requires reinforcement of the overhead stowage bins and modification of the overhead stowage bin components. Testing has demonstrated that the bins are not able to withstand ultimate load at the current maximum allowable weight levels.\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\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on overhead bin reinforcement. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Very short document (under 200 words)","Only 4 substantive paragraphs","No defined terms section — relies entirely on external Boeing and FAA documents","Single compliance requirement with no conditional logic or exceptions","No cross-references to other Australian legislation beyond the enabling Civil Aviation Regulations 1998","Straightforward applicability test (specific Boeing model series listed in named service bulletins)"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific Boeing 737 aircraft.\n\n**What it does:** It requires airlines and aircraft operators to strengthen the overhead luggage bins in the passenger cabin and modify their components. The bins currently can't handle the maximum weight they're supposed to carry, so they need reinforcement to prevent them from failing in flight.\n\n**Who it affects:** Operators of Boeing 737 series aircraft that are covered by three specific Boeing service bulletins (ASB 737-25A1283 Rev 1, SB 737-25-1291, and SB 737-25-1294).\n\n**Why it matters:** If the overhead bins fail, they could drop heavy luggage onto passengers during turbulence or emergency situations, causing serious injury. This directive ensures the bins can withstand the loads they're rated for, keeping passengers and crew safe.\n\n**What operators must do:** Follow the technical instructions in the referenced US Federal Aviation Administration (FAA) directive (AD 92-19-16), unless they've already completed the work."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD, as written, implements a corrective action (reinforcement/modification of overhead stowage bins) for the specific Boeing 737 models listed. The instrument does not expand or narrow the stated applicability beyond those models or alter the technical requirements from the referenced FAA AD and Boeing service bulletins; it directs compliance with those existing documents."},"complexity_factors":["Cross-reference to an external regulatory document (FAA AD 92-19-16 Amdt 39-8374) rather than containing full technical instructions within the AD itself","Multiple referenced Boeing service bulletins (ASB 737-25A1283 Rev 1; SB 737-25-1291; SB 737-25-1294) which operators must obtain and apply","Work requires structural reinforcement/modification (engineering, parts, approved procedures) rather than a simple inspection or paperwork change","Operational scheduling and aircraft downtime implications (coordination with maintenance providers and potential parts lead times)","Compliance wording defers timing and specific procedures to the Requirement Document, creating administrative dependence on external compliance schedules"],"plain_english_summary":"This AD mandates reinforcement and modification of cabin overhead stowage bins on specified Boeing 737s, requiring compliance with FAA AD 92-19-16 Amdt 39-8374 and referenced Boeing service documents. It affects owners/operators of the identified aircraft because testing showed current bins may not meet ultimate load requirements. Operators must fund and schedule inspections and structural work per the technical documents, bearing costs and operational downtime while improving occupant safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins","history":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins/history","analysis":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins/analysis","conflicts":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins/conflicts","importantCases":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins/important-cases","documents":"/api/acts/ad-b737-73-cabin-overhead-stowage-bins/documents"}}