{"id":"F2006B06039","name":"AD/PA-46/33 - Oxygen Generator","slug":"ad-pa-46-33-oxygen-generator","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114437,"registerId":"commonwealth-F2006B06039-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nPiper PA-46 (Malibu) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/PA-46/33 Oxygen Generator 11/2004 DM","sectionType":"part","heading":"AD/PA-46/33 Oxygen Generator 11/2004 DM","content":"# AD/PA-46/33 Oxygen Generator 11/2004 DM\n\nApplicability: Model PA-46-500TP aeroplanes, serial numbers 4697001 through 4697163.\n\nRequirement: 1. Unless already accomplished, perform the following inspections on any oxygen generator part number (P/N) 471-025, in accordance with The New Piper Aircraft, Inc. Service Bulletin (SB) No. 1140, dated 16 September 2003, and the aeroplane maintenance manual (Chapter 35-20-00 refers):\n\n    The percussion cap for the presence of any protective cover; and\n\n    b. The end of the trigger mechanism pin for the presence of any silicon tube.\n\n2. Remove any percussion cap protective covers or trigger mechanism silicon tubes found during the Requirement 1 inspections.\n\nNote: FAA AD 2004-15-19 Amdt 39-13753 refers.\n\nCompliance: For Requirement 1 \\- Within the next 50 hours time-in-service (TIS) after the effective date of this Directive or within the next 30 calendar days after the effective date of this Directive, whichever occurs first.\n\nFor Requirement 2 \\- Before further flight after the Requirement 1 inspections. This Airworthiness Directive becomes effective on 13 September 2004.\n\nBackground: The United States Federal Aviation Administration (FAA) has received reports of protective covers installed over the percussion cap or a silicon tube installed over the end of the trigger mechanism pin, on the oxygen generator, rendering the emergency oxygen system inoperative. This condition, if not corrected, could result in the crew or passengers not being able to get oxygen in an emergency situation.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive targeting a specific manufacturing defect on a specific aircraft model. The scope remains tightly focused on the original safety issue (oxygen generator inoperability due to protective covers/tubes) with no expansion beyond this discrete technical problem."},"complexity_factors":["Single, specific aircraft model and serial number range (narrow applicability)","Only 2 straightforward inspection requirements with clear action items","Simple binary compliance timeline (50 hours OR 30 days)","No defined terms section or complex cross-references to other legislation","Single reference to external technical document (Service Bulletin No. 1140) with clear identification","Background section provides clear, non-technical explanation of the safety risk"],"plain_english_summary":"CASA requires owners/operators of Piper PA-46-500TP aircraft (S/N 4697001–4697163) to inspect the emergency oxygen generator for a protective cover on the percussion cap or a silicon tube on the trigger pin and remove them if present. These manufacturing residues can prevent the oxygen system working in an emergency. Inspections must occur within 50 flight hours or 30 days after 13 Sep 2004, with removal before the next flight."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive applies to the specific aircraft serial range and single part number and mirrors the FAA action noted in the AD (Note: FAA AD 2004-15-19). There is no indication in the text that the scope has been expanded or narrowed beyond that alignment; obligations are limited to inspection and removal for affected P/N 471-025 on the listed serial numbers (Applicability; Requirement)."},"complexity_factors":["Narrow applicability reduces complexity: applies only to Model PA-46-500TP, serial numbers 4697001–4697163 (Applicability).","Single affected part simplifies technical scope: targets oxygen generator P/N 471-025 (Requirement 1).","Two-step action is simple: inspect for percussion-cap protective covers and silicone tube on trigger pin, then remove any found (Requirement 1–2).","Short dual compliance deadline increases operational pressure: within 50 flight hours TIS or 30 calendar days, whichever is first (Compliance: For Requirement 1).","Immediate grounding risk for affected aircraft if defects found: removal required before further flight (Compliance: For Requirement 2).","References external documents for procedure: inspection per Piper SB No. 1140 and maintenance manual (Requirement 1), adding dependency on manufacturer guidance and maintenance resources.","Regulatory basis and authority: issued under subregulation 39.1(1) of CASR 1998 (preamble), which centralises discretion with the CASA delegate.","Cross-reference to FAA AD increases alignment but requires operators to track international ADs (Note: FAA AD 2004-15-19 Amdt 39-13753 refers)."],"plain_english_summary":"This AD requires operators of specified Piper PA-46-500TP aeroplanes (serials 4697001–4697163) to inspect oxygen generator P/N 471-025 for protective covers on the percussion cap or a silicone tube on the trigger-pin, and to remove any found. CASA frames the measure as restoring emergency oxygen function; the inspection must occur within 50 flight hours or 30 days and removal must be done before further flight, imposing short-term maintenance time, potential downtime, and the direct compliance cost on aircraft operators or maintenance organisations."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-46-33-oxygen-generator","history":"/api/acts/ad-pa-46-33-oxygen-generator/history","analysis":"/api/acts/ad-pa-46-33-oxygen-generator/analysis","conflicts":"/api/acts/ad-pa-46-33-oxygen-generator/conflicts","importantCases":"/api/acts/ad-pa-46-33-oxygen-generator/important-cases","documents":"/api/acts/ad-pa-46-33-oxygen-generator/documents"}}