{"id":"F2006B05901","name":"AD/PA-34/3 Amdt 1 - Induction Air Box Valve - Inspection","slug":"ad-pa-34-3-amdt-1-induction-air-box-valve-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135958,"registerId":"commonwealth-F2006B05901-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-34/3 Amdt 1 - Induction Air Box Valve - 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)  Piper PA-34 (Seneca) Series Aeroplanes\n\n \n\nAD/PA-34/3\n\nAmdt 1\n\n\nInduction Air Box Valve - Inspection 9/72\n\n \n\nApplicability: Model PA34-200 with S/Nos. 34-E4 and 34-7250001 to 34-7250360 and 34-7350001 to 34-7350074 not modified in accordance with Piper SB No. 374.\n\n \n\nDocument: Piper SB No. 358.\n\n \n\nCompliance: Within 100 hours time in service after 29 September 1972 and there-after at intervals not exceeding 100 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","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This instrument is labelled as Amendment 1 to AD/PA-34/3, indicating the AD’s scope has been amended from a prior version (header: 'Amdt 1'). The text supplied sets the current applicability, document reference (Piper SB No. 358) and the 100‑hour inspection interval (Applicability, Document, Compliance). The AD does not include the original (pre-amendment) wording, so the specific elements changed by this amendment are not identified in the supplied text."},"complexity_factors":["Narrow applicability defined by specific model and serial-number ranges (Applicability).","Clear, simple periodicity rule expressed in hours time in service (Compliance).","Dependence on an external service bulletin (Piper SB No. 358) for procedural detail (Document) — adds operational dependency though not legal complexity.","Exemption for aircraft modified under a different service bulletin (Piper SB No. 374) — creates a compliance choice but the AD does not describe the modification.","Absence of procedural detail, corrective-action steps, or qualification requirements in the AD text itself increases practical implementation steps for operators."],"plain_english_summary":"This AD mandates recurring inspections of the induction air‑box valve on specified Piper PA‑34‑200 serial numbers, using the procedure in Piper SB No. 358. The first inspection is within 100 hours TIS after 29 Sept 1972 and then every 100 hours. Owners/operators must arrange and fund the work (or have authorised maintenance perform it). Aircraft modified per Piper SB No. 374 are excluded, creating an alternative (one‑time) compliance path to avoid repeated inspections."},"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. It has not expanded beyond its original purpose of ensuring induction air box valve integrity through periodic inspection."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 4 operative provisions: applicability, reference document, compliance timing, and recurring interval","Single condition in applicability (unmodified aircraft per Piper SB 374)","No defined terms section, no cross-references to other legislation, no nested exceptions","Straightforward temporal compliance structure (initial + recurring)","Limited technical scope (single component on specific aircraft models)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA).\n\n**What it does:**\nIt requires owners and operators of specific Piper PA-34 Seneca aircraft to inspect the **induction air box valve** (a component in the engine's air intake system) at regular intervals.\n\n**Who it affects:**\n- Owners and operators of **Piper PA-34-200 model aircraft** with specific serial numbers (34-E4, 34-7250001 through 34-7250360, and 34-7350001 through 34-7350074)\n- **Only if** the aircraft has **not** been modified according to Piper Service Bulletin No. 374\n\n**What must be done:**\n- Inspect the induction air box valve **within 100 hours of flying time** after 29 September 1972\n- Then repeat the inspection **every 100 hours of flying time** thereafter\n\n**Why it matters:**\nAirworthiness Directives are legally enforceable safety requirements. Failing to comply can ground an aircraft and expose operators to penalties. This particular AD addresses a potential defect in the induction air system that could affect engine performance or safety.\n\n**Key reference:**\nThe inspection procedure follows **Piper Service Bulletin No. 358** (a manufacturer-issued technical instruction)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection","history":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection/history","analysis":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection/analysis","conflicts":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection/conflicts","importantCases":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection/important-cases","documents":"/api/acts/ad-pa-34-3-amdt-1-induction-air-box-valve-inspection/documents"}}