{"id":"F2008L03273","name":"AD/P68/19 Amdt 3 - Control Wheel Shaft Universal Joint","slug":"ad-p68-19-amdt-3-control-wheel-shaft-universal-joint","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120010,"registerId":"commonwealth-F2008L03273-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Partenavia P68 Series Aeroplanes","sectionType":"division","heading":"Partenavia P68 Series Aeroplanes","content":"### Partenavia P68 Series Aeroplanes\n\n| AD/P68/19 Amdt 3 | Control Wheel Shaft Universal Joint | 10/2008 |\n| ---------------- | ----------------------------------- | ------- |\n\n| Applicability: | All models: P68, P68B, P68C, and P68C-TC.                                                                                                                                                                                                                                                                                                                                                                                        |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Inspect the control wheel shaft (rod) universal joint in accordance with Partenavia Service Bulletin No. 48, Revision 1 or later revision.                                                                                                                                                                                                                                                                                       |\n| Compliance:    | 1. For aircraft with serial numbers 001 up to and including 087: If Kit 68-016 has not been installed, inspect at intervals not to exceed 200 hours time in service or two years, whichever occurs first, until Kit 68-016 is installed.Note 1: Kit 68-016 includes universal joint P/No. NOR 7.315-04 and is defined in SB No. 48, Rev 1. If this Kit is to be installed see Partenavia Service Instruction No. 09, Revision 1. |\n|                | 2. For aircraft with serial numbers up to and including 087 after Kit 68-016 has been installed, and aircraft with serial numbers 088 and up, inspect at intervals not to exceed 1000 hours time in service or four years, whichever occurs first.Note 2: Aircraft with serial numbers 088 and up have Kit 68-016 installed at manufacture.Note 3: Italian AD 1995-076 applies to all serial numbers.                            |\n|                | Note 4: Compliance with this AD at a previous amendment constitutes compliance with this amendment for the purposes of determining time in service and elapsed calendar time.                                                                                                                                                                                                                                                    |\n|                | This Amendment becomes effective on 25 September 2008.                                                                                                                                                                                                                                                                                                                                                                           |\n| Background:    | The original issue of this AD in 1979 was based on failure of the pilot’s control wheel shaft universal joint in an Australian-registered P68 aircraft.Amendment 1 in 1980 specified inspection in accordance with SB No. 48.Amendment 2 in 1995 introduced repetitive inspections in accordance with SB No. 48, Revision 1.                                                                                                     |\n\n|     | Amendment 3 introduces the Italian requirement for elapsed calendar time to be taken into account in determining inspection intervals; and clarifies the serial number applicability. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n12 August 2008","sortOrder":0},{"sectionNumber":"AD/P68/19 Amdt 3","sectionType":"part","heading":"AD/P68/19 Amdt 3","content":"## AD/P68/19 Amdt 3","sortOrder":1},{"sectionNumber":"Control Wheel Shaft Universal Joint","sectionType":"part","heading":"Control Wheel Shaft Universal Joint","content":"## Control Wheel Shaft Universal Joint","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The legislation maintains its original scope as a safety directive for P68 aircraft control wheel shaft universal joints. While Amendment 3 adds calendar time requirements and clarifies serial number applicability, these are refinements to the existing inspection regime rather than expansion into new aircraft types or unrelated systems. The core purpose — preventing universal joint failure through mandated inspections — remains unchanged since 1979."},"complexity_factors":["Multiple serial number cut-offs creating different compliance paths (001–087 vs 088+)","Conditional logic based on whether Kit 68-016 has been installed","Dual-interval triggers (flight hours OR calendar time, whichever occurs first)","Cross-references to external documents: Partenavia Service Bulletin No. 48 Rev 1, Partenavia Service Instruction No. 09 Rev 1, and Italian AD 1995-076","Amendment history tracking (original 1979, Amendments 1–3) affecting interpretation of compliance timing","Note 4 creates a grandfathering provision for previous compliance"],"plain_english_summary":"This AD orders owners/operators of Partenavia P68 series aeroplanes in Australia to regularly inspect the control wheel shaft universal joint. It treats older aircraft without an upgrade kit more restrictively until the kit is fitted, while newer or upgraded aircraft have longer inspection intervals. The directive responds to a historical in‑flight failure (1979) that could lead to loss of control; a 2008 amendment added calendar time limits recognizing age-related degradation."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 3 modifies the inspection regime by adding an elapsed calendar-time requirement to the existing hours-in-service schedule and clarifies which serial numbers are subject to the different intervals (serials 001–087 conditional on kit installation; serials 088 and up have kit fitted at manufacture). It does not expand model applicability beyond the P68 series."},"complexity_factors":["Conditional inspection intervals based on serial number ranges (001–087 versus 088 and up) and on whether Kit 68-016 is installed","Dual compliance metrics: hours time in service and elapsed calendar time (whichever occurs first)","External references: Partenavia Service Bulletin No. 48 (Rev 1), Service Instruction No. 09, and Kit 68-016 with specific part number","Interplay with prior amendments and a foreign AD (Italian AD 1995-076) noted as applying to all serial numbers","Allowance that prior compliance under earlier amendments counts toward current interval calculations"],"plain_english_summary":"This airworthiness directive requires owners/operators of Partenavia P68 series aeroplanes to inspect the control wheel shaft universal joint following Partenavia Service Bulletin No. 48 (Revision 1 or later). Inspection intervals vary by aircraft serial number and whether Kit 68-016 (universal joint P/No. NOR 7.315-04) is fitted.\n\nCosts and compliance actions fall to the aircraft owner/operator; the regulator prescribes inspection timing by hours-in-service or elapsed calendar time and accepts earlier compliance. Amendment 3 adds calendar-time limits and clarifies serial-number coverage."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint","history":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint/history","analysis":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint/analysis","conflicts":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint/conflicts","importantCases":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint/important-cases","documents":"/api/acts/ad-p68-19-amdt-3-control-wheel-shaft-universal-joint/documents"}}