{"id":"F2006B05504","name":"AD/PA-23/77 Amdt 1 - Forward Baggage Door Locking System - Inspection and Modification","slug":"ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46351,"registerId":"commonwealth-F2006B05504-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-23/77 Amdt 1 - Forward Baggage Door Locking System - Inspection and 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-23 (Apache and Aztec) Series Aeroplanes\n\n \n\nAD/PA-23/77\n\nAmdt 1\n\n\nForward Baggage Door Locking System - Inspection and Modification\n\n\n8/79\n\n \n\nApplicability: All model PA-23-250 with S/Nos. 27-2000 to 27-7954032. Document:  Piper SB No. 604A.\n\nNote: Aeroplanes which have been modified to SB No. 604 do not meet the requirements of SB No. 604A.\n\n \n\nCompliance: Within 100 hours time in service after 31 August 1979.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1292},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"This Amendment 1 updates the original AD/PA-23/77 by replacing the requirement to comply with Service Bulletin 604 with the revised Service Bulletin 604A, ensuring aircraft modified under the earlier bulletin are brought up to the new standard."},"complexity_factors":["Single, specific applicability clause targeting only PA-23-250 variant with defined serial number range","Single compliance action with unambiguous deadline (100 hours time in service)","Minimal cross-referencing limited to one external technical document (Piper SB 604A)","One conditional note clarifying distinction between superseded and current service bulletins","No nested exceptions or conditional logic pathways"],"plain_english_summary":"**What this does:**\nThis is a mandatory safety order (called an Airworthiness Directive) requiring owners and operators of specific Piper Apache and Aztec aircraft to inspect and modify the forward baggage door locking system.\n\n**Who it affects:**\nOwners of Piper PA-23-250 model aircraft with serial numbers between 27-2000 and 27-7954032. If your plane was already fixed under the manufacturer's old Service Bulletin 604, you still need to comply with this updated requirement (Service Bulletin 604A).\n\n**What you must do:**\n- Inspect and modify the front baggage door lock according to Piper Service Bulletin No. 604A\n- Complete this work within 100 hours of flight time after 31 August 1979\n\n**Why it matters:**\nBaggage door failures in flight can create serious safety hazards, including damage to the aircraft structure or injury to people on the ground. This directive ensures the locking mechanism meets updated safety standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification","history":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification/history","analysis":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification/analysis","conflicts":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification/important-cases","documents":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification/documents"}}