{"id":"F2006B05691","name":"AD/PA-31/105 - Emergency Exit Window - Modification","slug":"ad-pa-31-105-emergency-exit-window-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135472,"registerId":"commonwealth-F2006B05691-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/105 - Emergency Exit Window - 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)  \nPiper PA-31 Series Aeroplanes\n\nAD/PA-31/105 Emergency Exit Window \\- Modification 8/82\n\nApplicability: Model PA-31T with S/Nos. 31T-8120036 to 31T-8120042, 31T-8120044 to 31T- 8120050, 31T-8120055 and 31T- 8120057. Model PA-31T1 with S/Nos. 31T-810040 and 31T-8104041, 31T-8104043 to 31T-8104046, 31T-8104048, 31T-8104051, 31T- 8104054, 31T-8104055, 31T-8104057 and 31T-8104058. Model PA-31T2 with S/Nos. 31T-8166001, 31T-8166005 to 31T-8166017, 31T-8166019 to 31T-8166021, 31T-8166030 and 31T-8166031.\n\nRequirement: Action in accordance with Piper SB No. 733.\n\nNote: FAA AD 82-11-04 refers.\n\nCompliance: Unless previously accomplished, within 100 hours time in service after 31 August 1982.\n\nBackground: Manufacturer reports an excess sealant condition exists which could restrict or delay emergency exit removal during an emergency.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific manufacturing defect in specific aircraft. It has not expanded beyond its original purpose of mandating emergency exit modifications."},"complexity_factors":["Single, specific technical requirement (follow Piper SB No. 733)","Limited applicability — only 3 aircraft models with explicitly listed serial numbers (approximately 30 individual aircraft)","No defined terms section or interpretation provisions","Simple compliance deadline (100 hours time in service after fixed date)","No cross-references to other legislation beyond a note about the equivalent FAA directive","No conditional logic, exceptions, or nested provisions"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific aircraft owners to make repairs or modifications.\n\n**What it does:**\nOrders owners of specific Piper PA-31 series aeroplanes (certain Cheyenne models) to modify their emergency exit windows. The manufacturer discovered that too much sealant was applied during production, which could jam the emergency exits in a crisis — potentially trapping passengers inside during a fire or crash.\n\n**Who it affects:**\nOwners and operators of specific Piper PA-31T, PA-31T1, and PA-31T2 aircraft with particular serial numbers (listed in the document). These are primarily small business turboprop aircraft.\n\n**What must be done:**\nFollow the manufacturer's Service Bulletin No. 733 to fix the sealant problem. This must be completed within 100 hours of flying time after 31 August 1982.\n\n**Why it matters:**\nEmergency exits need to open instantly in a crisis. Excess sealant could mean the difference between life and death if passengers need to evacuate quickly. This directive makes the fix legally mandatory, not optional."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive targets a specific safety concern for a defined set of airframes by requiring the modification described in Piper SB No. 733 (Requirement; Applicability). The text does not indicate an expansion or narrowing of the AD’s reach beyond those listed serial numbers or an alteration of the underlying model certification; it is corrective for the identified units rather than a change to the broader certification scope (Applicability; Background)."},"complexity_factors":["Narrow applicability limited to specific models and serial numbers (Applicability)","Technical nature of the corrective work (sealant removal/modification) requiring use of manufacturer procedures (Requirement)","Mandatory reliance on an external document (Piper Service Bulletin No. 733) for the exact work scope and acceptance criteria (Requirement)","Fixed compliance window defined as hours-in-service after a calendar date, creating operational scheduling considerations (Compliance)","Cross-reference to a related FAA AD which may require coordination for operators subject to multiple authorities (Note)"],"plain_english_summary":"Requires modification of the emergency exit window on specified Piper PA‑31 turboprops per Piper Service Bulletin No. 733 to remedy an excess‑sealant condition that could impede emergency exit removal. It applies only to the serial‑numbered aircraft listed; owners/operators must arrange and pay for the work within 100 flight hours after 31 Aug 1982, accepting the downtime and maintenance risk. The Civil Aviation Safety Authority enforces the deadline to address the evacuation safety concern."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-105-emergency-exit-window-modification","history":"/api/acts/ad-pa-31-105-emergency-exit-window-modification/history","analysis":"/api/acts/ad-pa-31-105-emergency-exit-window-modification/analysis","conflicts":"/api/acts/ad-pa-31-105-emergency-exit-window-modification/conflicts","importantCases":"/api/acts/ad-pa-31-105-emergency-exit-window-modification/important-cases","documents":"/api/acts/ad-pa-31-105-emergency-exit-window-modification/documents"}}