{"id":"F2006B10401","name":"AD/HS 125/122 Amdt 1 - Watertank Shroud Drain Outlet","slug":"ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116065,"registerId":"commonwealth-F2006B10401-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/122 Amdt 1 - Watertank Shroud Drain Outlet","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)  \nBritish Aerospace BAe 125 Series Aeroplanes\n\nAD/HS 125/122\n\nAmdt 1\n\n  \nWatertank Shroud Drain Outlet 5/98\n\nApplicability: Model 125 series 800A and 800B with constructor’s numbers as listed in British Aerospace SB 25-67-25A013A Revision 1.\n\nRequirement: Action in accordance with Mandatory British Aerospace SB 25-67-25A013A.\n\nNote: UK CAA AD 005-07-91 refers.\n\nCompliance: As specified in the requirement document.\n\nThe compliance of the original issue of this directive remains unchanged. This amendment becomes effective on 23 April 1998.\n\nBackground: This Directive requires a modification to the washbasin watertank shroud drain in order to reduce the possibility of aileron control cable icing, following any washbasin watertank leakage.\n\nAmendment 1 is issued to re-instate this directive to the series.\n\nThe original issue of this Airworthiness Directive became effective on 14 November 1991.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1922},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment is purely administrative. It re-instates the original 1991 directive to the active series of Airworthiness Directives without altering the substantive safety requirements, applicable aircraft models, or compliance measures."},"complexity_factors":["Very short single-issue directive with no interpretation section","Minimal legal conditionality - applies to a specific closed list of aircraft by serial number","Complexity limited to external technical references (Service Bulletin numbers, constructor's numbers)","No nested exceptions or elaborate compliance timelines"],"plain_english_summary":"This mandatory safety order requires owners/operators of certain British Aerospace BAe 125-800A and 800B aircraft (specific constructor/serial numbers per British Aerospace SB 25-67-25A013A Rev 1) to modify the washbasin drain around the toilet water tank. The change prevents leaks that could freeze on aileron control cables and jam controls. It reinstates a 1991 directive with unchanged technical requirements."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet","history":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet/history","analysis":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet/analysis","conflicts":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet/conflicts","importantCases":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet/important-cases","documents":"/api/acts/ad-hs-125-122-amdt-1-watertank-shroud-drain-outlet/documents"}}