{"id":"F2006B05326","name":"AD/P166/32 - Flap Actuating Cylinder Attachment Bracket - Inspection","slug":"ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45787,"registerId":"commonwealth-F2006B05326-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P166/32 - Flap Actuating Cylinder Attachment Bracket - Inspection","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)  Piaggio P166 Series Aeroplanes\n\n \n\nAD/P166/32 Flap Actuating Cylinder Attachment\n\nBracket - Inspection\n\n\n11/66\n\n \n\nApplicability: All models P166, P166B and P166C fitted with bracket P/N 1409-01 which have exceeded 1500 hours time in service.\n\n \n\nDocument: Piaggio SB No. 166-53.\n\n \n\nCompliance: At intervals not exceeding 200 hours time in service.\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\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused on a specific mechanical component on specific aircraft models. It has not expanded beyond its original purpose of ensuring airworthiness of the flap actuating cylinder attachment bracket."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 4 operative provisions: applicability, document reference, compliance interval, and subject matter","No defined terms section — uses plain aviation terminology","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Single condition: 1500 hours time in service threshold","No exceptions, exemptions, or nested conditional logic","Straightforward compliance obligation: inspect every 200 hours"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:** It requires owners and operators of certain Piaggio P166 series aeroplanes (models P166, P166B, and P166C) to inspect a specific part — the \"flap actuating cylinder attachment bracket\" (part number 1409-01) — at regular intervals.\n\n**Who it affects:** \n- **Aircraft owners/operators** of Piaggio P166, P166B, and P166C models\n- **Only applies to aircraft** that have flown more than 1,500 hours and have the specific bracket installed\n\n**What must be done:**\n- **Inspection required:** Every 200 hours of flight time (\"time in service\")\n- **Technical details:** The inspection follows procedures set out in Piaggio Service Bulletin No. 166-53\n\n**Why it matters:** This bracket is part of the flap system (flaps are the movable surfaces on wings that help control lift during takeoff and landing). If this bracket fails, it could compromise the aircraft's ability to control lift safely — potentially leading to loss of control. The directive ensures potential cracks or wear are caught before they cause catastrophic failure.\n\n**Key point:** This is **mandatory**, not optional. Non-compliance means the aircraft cannot legally fly in Australian airspace."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The supplied text contains no indication that the scope was changed from an earlier instrument or from its original purpose. The directive specifies applicability (models P166/P166B/P166C with bracket P/N 1409-01 over 1,500 hours), a compliance interval (≤200 hours), and references Piaggio SB No. 166-53; nothing in the text supplied signals a change to that scope."},"complexity_factors":["Narrow applicability (specific aircraft models and a single bracket part number). (Applicability)","Fixed numeric thresholds: inspection begins after 1,500 hours time in service and repeats at intervals not exceeding 200 hours. (Applicability; Compliance)","Reference to an external document (Piaggio SB No. 166-53) for procedural details, which requires consulting another source to implement. (Document)","The AD sets inspection requirements but does not (within the supplied text) detail corrective actions or acceptance criteria, creating a small implementation ambiguity resolved by the service bulletin. (Document)"],"plain_english_summary":"This directive requires owners/operators of Piaggio P166, P166B and P166C aeroplanes to have bracket P/N 1409‑01 (flap actuating cylinder attachment) inspected once that bracket exceeds 1,500 hours TIS and thereafter at intervals not exceeding 200 flight hours, using Piaggio Service Bulletin No. 166‑53. It affects operators and maintenance providers, shifts recurring inspection costs to owners, and aims to detect wear or damage before failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection","history":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection/history","analysis":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection/analysis","conflicts":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection/conflicts","importantCases":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection/important-cases","documents":"/api/acts/ad-p166-32-flap-actuating-cylinder-attachment-bracket-inspection/documents"}}