{"id":"F2008L02974","name":"AD/P68/27 Amdt 1 - Fibre Glass Leading Edges","slug":"ad-p68-27-amdt-1-fibre-glass-leading-edges","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74951,"registerId":"commonwealth-F2008L02974-current","compilationNumber":null,"startDate":"2026-04-02","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/P68/27 Amdt 1 | Fibre Glass Leading Edges | 9/2008 |\n| ---------------- | ------------------------- | ------ |\n\n| Applicability: | All models P68, P68B and P68C of serial numbers 1 through 250 (excluding 243); and all model P68C-TC of serial numbers 300-1TC through 300-22TC.                                                                                                                                                                                                                                                                                                                                                                                                                                                         |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Inspect the composite leading edge wing ribs of both wings using the procedure and locally fabricated tool described in Partenavia Service Bulletin No. 67 Revision 1, dated 5 November 1986.If a crack or disconnection is found, prior to further flight remove the wing leading edge and repair the cracks or disconnections as described in Partenavia Service Instruction No. 21 dated 30 August 1985.Note: RAI AD P.68-34 Rev 1 (RAI 87-36) and FAA AD 87-10-12 refer.                                                                                                                             |\n| Compliance:    | At each scheduled inspection for Maintenance Release issue.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n|                | This Amendment becomes effective on 28 August 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |\n| Background:    | The manufacturer has reported seven cases of cracked and disconnected ribs in the leading edges of the wings, and has specified inspection at intervals of 100 flight hours. The original issue of this AD in 1985 mandated inspection in accordance with the original issue of Service Bulletin No. 67 at each Maintenance Release inspection.Amendment 1, effective on 28 August 2008, introduces Revision 1 of Service Bulletin No. 67 as the inspection document; and Partenavia Service InstructionNo. 21 as the repair document. The Italian and USA Airworthiness Directives are also identified. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n18 July 2008","sortOrder":0},{"sectionNumber":"AD/P68/27 Amdt 1","sectionType":"part","heading":"AD/P68/27 Amdt 1","content":"## AD/P68/27 Amdt 1","sortOrder":1},{"sectionNumber":"Fibre Glass Leading Edges","sectionType":"part","heading":"Fibre Glass Leading Edges","content":"## Fibre Glass Leading Edges","sortOrder":2},{"sectionNumber":"9/2008","sectionType":"part","heading":"9/2008","content":"## 9/2008","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Amendment 1 updates the inspection and repair documents (Service Bulletin No. 67 Rev 1 and Service Instruction No. 21) and identifies related foreign ADs, but it does not change which aircraft are covered or the requirement to inspect at each Maintenance Release. The core applicability and recurring inspection trigger remain as originally set (Applicability; Requirement; Background)."},"complexity_factors":["Specific serial-number applicability restricts the affected fleet (Applicability).","Inspections must follow a particular procedure and locally fabricated tool described in Service Bulletin No. 67 Rev 1, adding technical specificity (Requirement).","Repairs require removal of the wing leading edge and following Partenavia Service Instruction No. 21, which involves a non-trivial maintenance operation (Requirement).","Compliance is tied to each scheduled Maintenance Release, creating recurring inspection burden rather than a one-off action (Compliance).","References to earlier ADs and foreign ADs (Italian, FAA) create cross-regulatory links operators must consider (Background).","The amendment replaces referenced documents (SB revision and Service Instruction) without expanding applicability, so legal scope remains narrow but procedural detail changed (Background)."],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Partenavia P68-series aeroplanes to inspect the composite leading‑edge wing ribs at every scheduled Maintenance Release using the procedure and locally fabricated tool in Partenavia Service Bulletin No. 67 Revision 1, and to remove and repair the leading edge before further flight if cracks or disconnections are found (Applicability; Requirement; Compliance). Owners pay for inspections and repairs; the manufacturer’s service bulletin and service instruction set the method and timing; the amendment updates the referenced documents (Background)."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly scoped to its original purpose. The 2008 update simply refreshes the referenced technical documents (updating to Service Bulletin No. 67 Revision 1 and adding Service Instruction No. 21) without expanding the aircraft models covered or the nature of the safety issue. The core requirement — inspect leading edges at Maintenance Release intervals — is unchanged from the 1985 original."},"complexity_factors":["Single, specific mechanical issue (wing rib cracks) with clear inspection protocol","Only 2 defined applicability groups (standard models and turbocharged models)","Straightforward compliance trigger (scheduled Maintenance Release inspection)","No nested exceptions or conditional logic — damage found equals grounding requirement","Cross-references only to manufacturer service bulletins and equivalent foreign directives (Italian RAI and US FAA), not to other legislation","Document is 1 page with minimal structural sections"],"plain_english_summary":"This AD requires owners/operators of specific Partenavia P68 series aeroplanes to perform regular inspections of the fibreglass wing leading edges for cracked or separated internal ribs and to ground aircraft until repairs are done per manufacturer instructions. It affects certain P68, P68B, P68C (s/n 1–250, except 243) and P68C‑TC turbocharged models, and updates a prior directive after multiple reported rib failures to prevent structural in‑flight hazards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges","history":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges/history","analysis":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges/analysis","conflicts":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges/conflicts","importantCases":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges/important-cases","documents":"/api/acts/ad-p68-27-amdt-1-fibre-glass-leading-edges/documents"}}