{"id":"F2006B05357","name":"AD/P68/3 Amdt 1 - Engine Mount - Inspection","slug":"ad-p68-3-amdt-1-engine-mount-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45900,"registerId":"commonwealth-F2006B05357-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/3 Amdt 1 - Engine Mount - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Partenavia P68 Series Aeroplanes\n\n \n\nAD/P68/3\n\nAmdt 1\n\n\nEngine Mount - Inspection 4/79\n\n \n\nApplicability: All models P68A and P68B. Document:  1. Partenavia SB No. 22; or\n\n2. Registro Aeronautico Italiano AD No. 75-252/P68-10.\n\n \n\nCompliance: Unless already accomplished, initially inspect within 25 hours time in service after 23 February 1979 and thereafter at intervals not exceeding 100 hours time in service.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The supplied AD is labelled as Amendment 1 but the text provided does not include an earlier version for comparison. The AD as supplied sets applicability (P68A and P68B) and inspection timing (initial within 25 hours after 23 Feb 1979, then every ≤100 hours). The source does not itself state whether these provisions expand, narrow or otherwise alter the scope compared with the original instrument, so a change cannot be confirmed from the text provided."},"complexity_factors":["Narrow applicability: applies only to Partenavia P68A and P68B (low universe of affected operators). (Applicability.)","Reliance on external documents for technical procedure: compliance requires consulting Partenavia SB No. 22 or Registro Aeronautico Italiano AD No. 75-252/P68-10 (adds dependency and marginal complexity). (Referenced documents.)","Clear, simple timing requirements: initial inspection within 25 hours after a fixed date; recurring inspections every ≤100 hours (straightforward schedule). (Compliance.)","A retroactive compliance clause (“unless already accomplished”) requires verification of prior work, adding a small record-checking burden. (Compliance.)","Lack of procedural detail in the AD text itself shifts interpretive burden to the referenced documents and maintenance organisations."],"plain_english_summary":"This AD mandates physical inspections of engine mounts on Partenavia P68A and P68B aeroplanes using the procedures in either Partenavia Service Bulletin No. 22 or Registro Aeronautico Italiano AD No. 75‑252/P68‑10. An initial inspection is required within 25 hours TIS after 23 Feb 1979 (unless already done) and must be repeated at intervals not exceeding 100 hours TIS. Owners/operators and maintenance providers bear inspection and repair costs and must record compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused specifically on engine mount inspections for two specific aircraft models. There is no evidence of scope creep; it maintains its original narrow purpose of addressing a specific airworthiness concern identified in 1979."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 2 defined applicability criteria (P68A and P68B models)","Single compliance requirement with straightforward time-in-service intervals","No cross-references to other legislation beyond two external technical documents","No conditional logic, exceptions, or nested provisions","Clear, unambiguous operative language ('Unless already accomplished', 'thereafter at intervals not exceeding')"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order — issued by Australia's Civil Aviation Safety Authority (CASA) for certain Italian-made aircraft.\n\n**What it does:**\n- Requires owners and operators of **Partenavia P68A and P68B aeroplanes** to inspect the **engine mount** (the structure that attaches the engine to the aircraft) for defects.\n\n**Who it affects:**\n- Anyone who owns, operates, or maintains Partenavia P68A or P68B aircraft registered in Australia.\n\n**What must be done:**\n- **First inspection:** Must be completed within **25 hours of flying time** after 23 February 1979.\n- **Ongoing inspections:** Must be repeated every **100 hours of flying time** thereafter.\n- **Exception:** If the inspection was already done before this directive took effect, you don't need to do it again immediately.\n\n**Why it matters:**\nEngine mounts are critical structural components. If they fail, the engine could detach from the aircraft in flight. This AD was issued to prevent catastrophic accidents by ensuring cracks or corrosion are caught early.\n\n**Technical references:**\nThe directive points to two technical documents for how to perform the inspection: Partenavia Service Bulletin No. 22, or an Italian aviation authority directive (Registro Aeronautico Italiano AD No. 75-252/P68-10)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection","history":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection/history","analysis":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection/analysis","conflicts":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection/conflicts","importantCases":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection/important-cases","documents":"/api/acts/ad-p68-3-amdt-1-engine-mount-inspection/documents"}}