{"id":"F2006B06097","name":"AD/PC-12/34 - Rear Pressure Bulkhead","slug":"ad-pc-12-34-rear-pressure-bulkhead","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46835,"registerId":"commonwealth-F2006B06097-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \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 CAR 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\nPilatus PC-12 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/PC-12/34 Rear Pressure Bulkhead 13/20","sectionType":"part","heading":"AD/PC-12/34 Rear Pressure Bulkhead 13/2002 DM","content":"# AD/PC-12/34 Rear Pressure Bulkhead 13/2002 DM\n\nApplicability: Model PC-12 and PC-12/45 aircraft, Manufacturers Serial Numbers (MSN) 101 through 380, 382 through 385, 387 through 395, 398 through 406, 408, 409, 413, 415, and 417; except for aircraft which have already complied with the original issue of the requirement document.\n\nRequirement: Inspect in accordance with Pilatus Aircraft Mandatory Service Bulletin 53-003 Revision 1, dated 26 July 2002.\n\nNote: Switzerland FOCA AD HB 2002-608 refers.\n\nCompliance: At the next annual inspection after 20 November 2002 or befo re 31 December 2002, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 20 November 2002.\n\nBackground: The manufacturer has determined the possibility exists that drill and rivet-reaction tool damage could have occurred in areas around the edges of the rear pressure dome. This could have occurred during assembly procedures in some of the affected aircraft.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.002.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 November 2002\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 20 November 2002.","sortOrder":1}],"analysis":{"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The directive sets a mandatory inspection for a defined set of PC-12/PC-12/45 serial numbers and does not expand or narrow that set beyond what the instrument specifies. It requires inspection per the cited service bulletin and provides an exception for aircraft that have already complied; there is no indication in the text that the instrument alters its original applicability or adds additional aircraft beyond those listed."},"complexity_factors":["Narrow applicability by specific model and multiple Manufacturer Serial Number ranges, requiring fleet-level serial-number checks.","Mandatory reference to an external document (Pilatus Mandatory Service Bulletin 53-003 Rev 1) for inspection procedure and criteria.","Compliance window tied to next annual inspection after a specified effective date or an absolute deadline (operational scheduling constraint).","Exception for aircraft that already complied adds an administrative verification step.","Technical nature of inspection (damage from drill/rivet reaction) may require specialised maintenance skill and potential repairs.","Regulatory basis under CAR 1998 subregulation 39.1(1) — enforces mandatory action but leaves operational scheduling to operators."],"plain_english_summary":"Requires specified Pilatus PC-12 and PC-12/45 aircraft (listed serial numbers) to have the rear pressure bulkhead inspected for possible drill/rivet-reaction tool damage, using Pilatus Mandatory Service Bulletin 53-003 Rev 1. Owners/operators of affected aircraft must have this inspection done at the next annual inspection after 20 November 2002 or by 31 December 2002, whichever is earlier. Purpose stated is to detect assembly-related damage around the rear pressure dome; compliance creates inspection and possible repair costs."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific manufacturing defect in a limited production run of PC-12 aircraft. The serial number ranges and single inspection requirement align precisely with the stated safety concern about assembly tool damage."},"complexity_factors":["Single, discrete safety issue addressed (tool damage during manufacturing)","Limited applicability — specific aircraft serial numbers listed explicitly","Single compliance action required (one inspection per manufacturer bulletin)","No nested exceptions or conditional logic beyond the serial number exemption","Short document (approximately 250 words) with minimal cross-referencing","Only one external reference (Swiss FOCA AD HB 2002-608, noted for information only)"],"plain_english_summary":"This AD requires owners/operators of certain Pilatus PC-12 and PC-12/45 aircraft to inspect the rear pressure bulkhead per Pilatus Service Bulletin 53‑003 Rev 1, because assembly-tool damage to the pressure dome edges could cause cabin depressurisation or structural failure. It applies to specified serial-number aircraft (exempt if already inspected) and must be done by the next annual inspection after 20 Nov 2002 or by 31 Dec 2002. Compliance is mandatory."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead","history":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead/history","analysis":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead/analysis","conflicts":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead/conflicts","importantCases":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead/important-cases","documents":"/api/acts/ad-pc-12-34-rear-pressure-bulkhead/documents"}}