{"id":"F2006B05337","name":"AD/P68/10 Amdt 1 - Stabilator Balance Weight Attachment - Inspection and Modification","slug":"ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45824,"registerId":"commonwealth-F2006B05337-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/10 Amdt 1 - Stabilator Balance Weight Attachment - Inspection and Modification","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPartenavia P68 Series Aeroplanes\n\nAD/P68/10\n\nAmdt 1\n\n  \n\nStabilator Balance Weight Attachment \\- Inspection and Modification\n\n  \n9/78\n\nApplicability: All models P68 and P68B with S/Nos. prior to S/No. 89 except S/N 03 and 40.\n\nRequirement: 1. Visually inspect the stabilator balance weight attachment channel P/N 68-3.3017-3 for cracks, particularly in the areas of channel to stabilator attachment and balance weight to channel attachment.\n\n2. Modify the stabilator balance weight attachment channel in accordance with Partenavia Bolletino di Servizio Tecnico No. 36.\n\nNote: Registro Aeronautico Italiano AD No. 78-107/P68-16 Rev. 1 refers.\n\nCompliance: 1. For aeroplanes with less than 5000 hours time in service inspect at intervals not exceeding 100 hours time in service until modified. All other aeroplanes inspect at intervals not exceeding 25 hours time in service until modified.\n\n2. For aeroplanes with less than 500 hours time in service modify within 500 hours. All other aeroplanes, modify with 100 hours.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This text is Amendment 1 to AD/P68/10 and therefore modifies the original AD by prescribing specific visual-inspection requirements, recurring inspection intervals until modification, and firm modification deadlines tied to hours-in-service. It also expressly references the Partenavia service bulletin (Bolletino No. 36) and an Italian AD (Registro Aeronautico Italiano AD No. 78-107/P68-16 Rev. 1), which expands reliance on external technical material for compliance."},"complexity_factors":["Conditional inspection and modification intervals based on aircraft hours-in-service (different thresholds for <5000, <500, and ‘all other’ categories).","Applicability limited by serial-number range with specific exceptions (S/Ns prior to 89, except 03 and 40).","Requirement to modify in accordance with an external manufacturer service bulletin (Partenavia Bolletino di Servizio Tecnico No. 36) — introduces dependence on an external document.","Reference to an external foreign AD (Registro Aeronautico Italiano AD No. 78-107/P68-16 Rev. 1) which may require cross-checking.","Distinction between ongoing inspection obligation until modification and a one-time modification deadline increases administrative tracking burden.","Visual-inspection standard (‘inspect for cracks… particularly in the areas of channel to stabilator attachment and balance weight to channel attachment’) leaves some room for judgment by inspectors."],"plain_english_summary":"**What it does:** Requires owners/operators of Partenavia P68 and P68B aeroplanes with serial numbers before 89 (except S/N 03 and 40) to visually inspect the stabilator balance weight attachment channel for cracks and to modify that channel according to the manufacturer's service bulletin.  \n\n**Who it affects and why it matters:** Operators must perform recurring inspections until the channel is modified, and meet specified modification deadlines tied to hours-in-service. Operators pay for inspections and the modification and must keep records of compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is Amendment 1 to an existing Airworthiness Directive (AD/P68/10). The scope remains tightly focused on the original safety issue: stabilator balance weight attachment integrity for specific Partenavia P68 aircraft. The amendment appears to maintain the same applicability and core requirements as the original 1978 directive (referenced as 9/78), with no indication of scope creep into unrelated aircraft systems or models."},"complexity_factors":["Short, single-purpose directive (approximately 200 words)","Only 4 defined applicability criteria (model types, serial number ranges, two exceptions)","Two main requirements with clear sequential logic (inspect first, then modify)","Simple conditional compliance structure based on two flight-hour thresholds (500 and 5,000 hours)","No cross-references to other legislation or complex defined terms","Single external reference to manufacturer service bulletin (Partenavia Bolletino di Servizio Tecnico No. 36) and Italian aviation authority document","Straightforward risk-tiering: two categories for inspections, two categories for modifications"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of specified Partenavia P68/P68B aircraft (serials under 89, except 03 and 40) to inspect and ultimately modify the stabilator balance weight attachment channel because cracks were found. \n\nInspections must be repeated until the mandatory modification per Partenavia Service Bulletin No. 36 is carried out, with shorter inspection intervals and earlier mod deadlines for higher-time aircraft to prevent possible loss of control from a detached balance weight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification","history":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification/history","analysis":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification/analysis","conflicts":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification/important-cases","documents":"/api/acts/ad-p68-10-amdt-1-stabilator-balance-weight-attachment-inspection-and-modification/documents"}}