{"id":"F2006B04435","name":"AD/BELL 206/120 - Bogus Pressure Gauge Emergency Floats P/N 212-073-905-1","slug":"ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44271,"registerId":"commonwealth-F2006B04435-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 206/120 - Bogus Pressure Gauge Emergency Floats P/N 212-073-905-1","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)  Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters\n\n \n\nAD/BELL 206/120 Bogus Pressure Gauge Emergency\n\nFloats P/N 212-073-905-1\n\n\n4/90\n\nDM\n\n \n\nApplicability: All models.\n\n \n\nRequirement: Action in accordance with Bell OSN-GEN-89-14.\n\n \n\nCompliance: At the next inspection for Maintenance Release issue after 28 February 1990 or before the next charging of the emergency float reservoir, whichever is earlier.\n\n \n\nBackground: The aircraft manufacturer has had reported an incident where the subject pressure gauge exploded at only 2000 psig. The gauge was subsequently found to be bogus. Failure of the bogus gauge could severely injure maintenance personnel.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2679},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope addressing the specific safety hazard of counterfeit pressure gauges on emergency float systems for Bell 206 helicopters."},"complexity_factors":["Single, specific safety requirement","Limited applicability to specific helicopter models (Bell 206 series)","Clear compliance deadline with simple binary trigger (scheduled inspection date vs reservoir charging)","No nested exceptions, conditional logic, or defined terms section","Minimal cross-referencing (references only one manufacturer safety notice)"],"plain_english_summary":"This Airworthiness Directive mandates urgent safety checks on **Bell 206 series helicopters** to identify and remove dangerous counterfeit pressure gauges.\n\n**What it requires:**\n- Helicopter operators must inspect the pressure gauges fitted to emergency float systems (part number 212-073-905-1) on all Bell 206 and Agusta Bell 206 helicopters\n- Any counterfeit (\"bogus\") gauges must be addressed following the manufacturer's safety notice Bell OSN-GEN-89-14\n- The inspection must occur either at the next scheduled inspection for Maintenance Release (formal certification allowing the aircraft to fly) after 28 February 1990, or before the next time the emergency float reservoir is charged—whichever comes first\n\n**Why it matters:**\nA counterfeit pressure gauge exploded at just 2,000 pounds per square inch (well below safe operating limits). Such failures can cause severe injuries to maintenance personnel working on the helicopter's emergency flotation equipment (the system that keeps helicopters afloat during water emergencies)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1","history":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1/history","analysis":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1/analysis","conflicts":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1/conflicts","importantCases":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1/important-cases","documents":"/api/acts/ad-bell-206-120-bogus-pressure-gauge-emergency-floats-p-n-212-073-905-1/documents"}}