{"id":"F2006B03279","name":"AD/B767/1 Amdt 1 - Fuel Quantity System - Inspection","slug":"ad-b767-1-amdt-1-fuel-quantity-system-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42716,"registerId":"commonwealth-F2006B03279-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/1 Amdt 1 - Fuel Quantity System - Inspection","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)  \nBoeing 767 Series Aeroplanes\n\nAD/B767/1\n\nAmdt 1\n\n  \nFuel Quantity System \\- Inspection 12/83\n\nApplicability: All models equipped with FQIS processor P/N. S345T002-41. Document: Boeing Alert Service Bulletin 767-28A5 Rev. 2.\n\nNote: FAA AD 83-15-05 AMDT. 39-4696 refers.\n\nCompliance: Unless already accomplished, initial inspection on or before 31st December 1983.\n\nSubsequent inspections as per requirement document.\n\nNote: Compliance with the original issue of this directive does not constitute compliance with this AD/B767/1 AMDT 1.\n\nBackground: To prevent loss of engine power due to fuel exhaustion resulting from erroneous fuel quantity indication. This directive is raised in issue to include the latest revision status of Boeing S.B. 767-28A5 which modifies certain aspects of the inspection procedure.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose — preventing fuel exhaustion through inspection of the FQIS processor. The amendment simply updates the reference to the latest revision of the Boeing service bulletin without expanding the scope beyond the specific fuel system safety issue."},"complexity_factors":["Very short document (approximately 150 words)","Only 1 defined term implied (FQIS - Fuel Quantity Indication System)","Single compliance date with straightforward subsequent inspection requirement","No nested exceptions or conditional logic","Clear applicability criteria (specific part number)","Minimal cross-referencing (one Boeing document, one FAA AD reference)","Simple structure: applicability, document reference, compliance deadline, background"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for **Boeing 767 aircraft**.\n\n**What it does:**\n- Requires owners and operators to inspect the **Fuel Quantity Indication System (FQIS)** on specific Boeing 767 models\n- The system being checked uses a particular processor part number (S345T002-41)\n\n**Why it matters:**\n- Faulty fuel gauges can show incorrect fuel levels, potentially causing **engine failure from fuel exhaustion** mid-flight\n- This is a critical safety issue — pilots rely on accurate fuel readings for flight planning\n\n**What must happen:**\n- **Initial inspection** must be completed by **31 December 1983**\n- **Follow-up inspections** must continue according to Boeing's service bulletin requirements\n- Even if operators already complied with the original version of this directive, they **must comply again** with this updated version (Amendment 1)\n\n**Who it affects:**\n- Airlines and operators flying Boeing 767s with the specified fuel system processor\n- Maintenance organisations servicing these aircraft in Australia\n\nThe directive references a Boeing service bulletin and a corresponding US Federal Aviation Administration directive, ensuring Australian requirements align with international safety standards."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"The amendment updates the directive to incorporate the latest revision status of Boeing Alert Service Bulletin 767-28A5, which \"modifies certain aspects of the inspection procedure\" (Background). It also states that compliance with the original issue of the directive does not meet the amended requirement, meaning operators who complied under the original AD must confirm and, if necessary, repeat or modify inspections to meet the revised procedures (Compliance note)."},"complexity_factors":["Narrow technical applicability — applies only to aircraft with FQIS processor P/N S345T002-41 (Applicability).","Reliance on an external technical document (Boeing Alert Service Bulletin 767-28A5 Rev. 2) for the required inspection method and intervals (Document).","Fixed historical initial compliance deadline combined with continuing inspection obligations increases scheduling and record-keeping tasks (Compliance).","Amendment effect — prior compliance under the original issue is explicitly stated to be insufficient, requiring operators to check revision status and potentially rework earlier inspections (Compliance note; Background).","Cross-reference to an FAA AD increases the need to track related regulatory material, though the AD itself sets the local obligation (Note)."],"plain_english_summary":"This directive requires operators of Boeing 767s fitted with FQIS processor P/N S345T002-41 to carry out an initial inspection by 31 December 1983 (if not already done) and recurring inspections per Boeing Alert Service Bulletin 767-28A5 Rev. 2, which the AD incorporates. Operators fund and arrange inspections/repairs. The measure, superseding earlier compliance, aims to prevent engine power loss from erroneous fuel quantity indications."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection","history":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection/history","analysis":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection/analysis","conflicts":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection/conflicts","importantCases":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection/important-cases","documents":"/api/acts/ad-b767-1-amdt-1-fuel-quantity-system-inspection/documents"}}