{"id":"F2006B05862","name":"AD/PA-32/65 - Fuselage Firewall - Modification","slug":"ad-pa-32-65-fuselage-firewall-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135886,"registerId":"commonwealth-F2006B05862-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/65 - Fuselage Firewall - Modification","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)  Piper PA-32 (Cherokee Six) Series Aeroplanes\n\n \n\nAD/PA-32/65 Fuselage Firewall - Modification 3/80\n\nApplicability: All model PA-32RT-300T with S/Nos. as referenced in Piper SB No. 655. Document:               Piper SB No. 655.\n\nCompliance: Within 100 hours time in service after 30 November 1979.\n\n \n\nBackground:  The manufacturer has received reports of a small crack developing in the firewall adjacent to the lower forward corner of the forward baggage door.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1073},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope targeting only the specific firewall cracking issue in the PA-32RT-300T model series as originally identified."},"complexity_factors":["Single, clearly defined mechanical task (firewall modification)","Narrow applicability limited to one specific aircraft model and serial number range","Simple compliance trigger (100 hours time-in-service)","Only one external reference document (Piper SB No. 655)","No nested exceptions or conditional provisions"],"plain_english_summary":"**What this is:** A mandatory safety order (called an **Airworthiness Directive**) requiring a specific repair to certain Piper aircraft.\n\n**Who it affects:** Owners and operators of **Piper PA-32RT-300T** aeroplanes with specific serial numbers listed in Piper Service Bulletin No. 655 (a technical notice from the manufacturer).\n\n**What you must do:** Modify the **fuselage firewall** (the protective metal wall between the engine and the passenger cabin) according to the instructions in Piper Service Bulletin No. 655.\n\n**When:** Complete the work within **100 hours of flight time** after 30 November 1979.\n\n**Why this matters:** The manufacturer discovered that cracks can develop in the firewall near the baggage door corner. This could weaken the aircraft's structure and potentially allow fire or fumes to enter the cabin. The directive ensures this safety defect is fixed before it becomes dangerous."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-65-fuselage-firewall-modification","history":"/api/acts/ad-pa-32-65-fuselage-firewall-modification/history","analysis":"/api/acts/ad-pa-32-65-fuselage-firewall-modification/analysis","conflicts":"/api/acts/ad-pa-32-65-fuselage-firewall-modification/conflicts","importantCases":"/api/acts/ad-pa-32-65-fuselage-firewall-modification/important-cases","documents":"/api/acts/ad-pa-32-65-fuselage-firewall-modification/documents"}}