{"id":"F2006B01849","name":"AD/A320/10 - Standby Pitot Line","slug":"ad-a320-10-standby-pitot-line","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41045,"registerId":"commonwealth-F2006B01849-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/10 - Standby Pitot Line","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 7/1990,Aircraft above 5700 kg,Airbus Industrie A319, A320 and A321 Series Aeroplanes,Standby Pitot Line,10\ntitle: Airworthiness Directive - AD/A320/10 - Standby Pitot Line\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\nAD/A320/10 Standby Pitot Line 7/90\n\nApplicability: Model A320-111.\n\n \n\nRequirement: Action in accordance with SB A320-34-1006 R.1. Compliance:  Prior to 31 December 1990.\n\nBackground: The pitot piping is altered to avoid any low points.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1210},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive remains tightly focused on its original technical purpose: correcting a specific design flaw in the standby pitot system of the A320-111. There is no evidence of scope expansion beyond this single airworthiness issue."},"complexity_factors":["Single-page document with only one substantive requirement","Clear, unambiguous applicability to only one specific aircraft model (A320-111)","Single compliance deadline with no conditional extensions or exceptions","No defined terms section or interpretive provisions","Only one external cross-reference (to the service bulletin)"],"plain_english_summary":"**What this is:** A mandatory safety order (Airworthiness Directive) issued by the Civil Aviation Safety Authority (CASA) requiring a specific repair on certain Airbus aircraft.\n\n**Who it affects:** Operators of Airbus Model A320-111 aircraft.\n\n**What it requires:** Operators must modify the **standby pitot line** (the backup tubing that feeds air pressure sensors for measuring airspeed) to remove any low points where water could pool. This must be done exactly as specified in the manufacturer's Service Bulletin A320-34-1006 Revision 1.\n\n**Deadline:** The modification must be completed before 31 December 1990.\n\n**Why it matters:** Low points in pitot tubing can trap moisture. If this water freezes at high altitude, it blocks the tube and causes the pilots to receive false or erratic airspeed readings — a dangerous situation that has contributed to past accidents. This directive prevents that failure by ensuring the piping has no dips where fluid can collect."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-10-standby-pitot-line","history":"/api/acts/ad-a320-10-standby-pitot-line/history","analysis":"/api/acts/ad-a320-10-standby-pitot-line/analysis","conflicts":"/api/acts/ad-a320-10-standby-pitot-line/conflicts","importantCases":"/api/acts/ad-a320-10-standby-pitot-line/important-cases","documents":"/api/acts/ad-a320-10-standby-pitot-line/documents"}}