{"id":"F2006B01969","name":"AD/A320/8 Amdt 1 - Angle of Attack Sensors","slug":"ad-a320-8-amdt-1-angle-of-attack-sensors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41191,"registerId":"commonwealth-F2006B01969-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/8 Amdt 1 - Angle of Attack Sensors","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue 10/1990,Aircraft above 5700 kg,Airbus Industrie A319, A320 and A321 Series Aeroplanes,Angle of Attack Sensors,8 Amdt 1\ntitle: Airworthiness Directive - AD/A320/8 Amdt 1 - Angle of Attack Sensors\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)  Airbus Industrie A319, A320 and A321 Series Aeroplanes\n\n \n\n# AD/A320/8\n\nAmdt 1\n\nApplicability: All models A320.\n\n# Angle of Attack Sensors 10/90\n\n \n\nRequirement: 1. Action in accordance with SB A320-34-1012.\n\n \n\nNote: DGAC AD 89-198-004 (B) refers.\n\n \n\n2. Action in accordance with SB A320-34-1013. Compliance: 1. Within 100 hours’ time in service from 17 May 1990.\n\n2. Prior to 31 August 1991.\n\n \n\nBackground: To prevent a risk of simultaneous positioning of two angle of attack sensors which could lead to a pitch down command.\n\n \n\nThe original AD was a temporary fix for the problem. This amendment is issued to incorporate the permanent modification.\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":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1852},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment updates the original directive from a temporary to a permanent fix for the same angle of attack sensor issue, without expanding beyond the original safety purpose or aircraft applicability."},"complexity_factors":["Single-page document with minimal text and no defined terms section","Simple linear structure: Applicability, Requirement, Compliance, Background","Only two external technical references (Service Bulletins) and one reference to French aviation authority documentation","Clear, unconditional compliance deadlines with no nested exceptions or conditional logic"],"plain_english_summary":"**What this is:** A safety directive requiring operators of Airbus A320 aircraft to fix a potentially dangerous fault with angle of attack sensors (devices that measure the angle between the wing and the air flowing over it).\n\n**What it requires:** Airlines and aircraft operators must carry out specific modifications to the aircraft's sensor systems according to two Airbus Service Bulletins (technical instruction documents): SB A320-34-1012 and SB A320-34-1013.\n\n**Why it matters:** Without this fix, there is a risk that two angle of attack sensors could move into the same position simultaneously. This could trigger an automatic flight control command that forces the aircraft's nose down unexpectedly — a dangerous situation during flight.\n\n**Deadlines:**\n- First modification: Within 100 flight hours after 17 May 1990\n- Second modification: Before 31 August 1991\n\n**Key point:** This directive upgrades an original temporary fix to a permanent solution, ensuring long-term safety for these aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors","history":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors/history","analysis":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors/analysis","conflicts":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors/conflicts","importantCases":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors/important-cases","documents":"/api/acts/ad-a320-8-amdt-1-angle-of-attack-sensors/documents"}}