{"id":"F2006B03388","name":"AD/B767/32 - Ram Air Turbine","slug":"ad-b767-32-ram-air-turbine","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42890,"registerId":"commonwealth-F2006B03388-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/32 - Ram Air Turbine","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)  Boeing 767 Series Aeroplanes\n\n \n\nAD/B767/32 Ram Air Turbine 2/90\n\nApplicability: Model 767 series with line position number 1 through 220.\n\n \n\nRequirement: Action in accordance with Boeing Service Bulletin 767-29A0035 Revision 1 or Revision 2.\n\n \n\nNote: FAA AD 89-23-02 Amdt 39-6373 refers.\n\n \n\nCompliance: At next scheduled “C” check or prior to 28 February 1991 whichever occurs first.\n\n \n\nBackground: Ram air turbine hydraulic pumps have been damaged by filter screen fragments from the ground checkout module orifice plug. This AD requires inspection and replacement of the ram air turbine ground checkout module and possible replacement of the RAT hydraulic pump. An operable RAT hydraulic pump will ensure that hydraulic power is available should a dual engine loss occur.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a defined aircraft population. It has not expanded beyond its original purpose of ensuring RAT hydraulic pump integrity."},"complexity_factors":["Single, specific mechanical issue addressed","Clear applicability limited to specific serial number range (1-220)","Straightforward compliance deadline with simple alternative timing","Single cross-reference to Boeing Service Bulletin and FAA AD","No defined terms section, no nested conditions, no exceptions","Extremely short document (approximately 150 words of substantive content)"],"plain_english_summary":"This mandatory CASA Airworthiness Directive applies to Boeing 767s line positions 1–220 and requires inspection and, if necessary, replacement of the ram air turbine (RAT) ground checkout module — with RAT hydraulic pump replacement if damage is found. It addresses filter-screen fragments that can damage the pump and disable the RAT emergency hydraulic system. Compliance is required by the next “C” check or by 28 Feb 1991, following Boeing Service Bulletin 767-29A0035."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive focuses narrowly on preventing RAT hydraulic‑pump damage from filter‑screen fragments by requiring inspection/replacement of the RAT ground checkout module and possible pump replacement (per the Boeing service bulletin). It confines action to Model 767 line positions 1–220 and specifies timing (next “C” check or 28 Feb 1991). It does not expand obligations beyond the specified aircraft, components, or the referenced service procedure."},"complexity_factors":["Relies on an external technical document: compliance requires following Boeing Service Bulletin 767‑29A0035 Revision 1 or 2 (operators must obtain and apply that bulletin).","Targeted applicability: only Model 767 aircraft with line position numbers 1–220 — requires accurate fleet tracking to determine affected aircraft.","Compliance timing: action must occur at the next scheduled “C” check or by a fixed calendar date (28 Feb 1991), creating scheduling and operational planning constraints.","Potential part replacement: inspection may trigger replacement of the RAT ground checkout module and/or RAT hydraulic pump, imposing parts, labour and downtime costs on operators.","Technical maintenance work: inspections and replacements involve certified maintenance procedures and potential certification records, increasing administrative/technical compliance burden.","Cross-reference to FAA AD 89‑23‑02 Amdt 39‑6373: means operators and maintainers may need to consult corresponding foreign airworthiness material."],"plain_english_summary":"Requires operators of Boeing 767 aeroplanes (line numbers 1–220) to inspect and, if necessary, replace the ram air turbine (RAT) ground checkout module and possibly the RAT hydraulic pump per Boeing Service Bulletin 767‑29A0035 (Rev 1 or 2). Compliance is at the next scheduled “C” check or by 28 February 1991. The measure aims to prevent hydraulic-pump damage from filter‑screen fragments so the RAT will supply hydraulic power after a dual‑engine loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-32-ram-air-turbine","history":"/api/acts/ad-b767-32-ram-air-turbine/history","analysis":"/api/acts/ad-b767-32-ram-air-turbine/analysis","conflicts":"/api/acts/ad-b767-32-ram-air-turbine/conflicts","importantCases":"/api/acts/ad-b767-32-ram-air-turbine/important-cases","documents":"/api/acts/ad-b767-32-ram-air-turbine/documents"}}