{"id":"F2006B03365","name":"AD/B767/19 - Relocation of Engine Electronic Control Switches","slug":"ad-b767-19-relocation-of-engine-electronic-control-switches","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42815,"registerId":"commonwealth-F2006B03365-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/19 - Relocation of Engine Electronic Control Switches","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/B767/19 Relocation of Engine Electronic Control Switches 11/88\n\nApplicability: All model 767 series aeroplanes.\n\nRequirement: Relocate the engine electronic control switches in accordance with the requirements of Boeing Service Bulletin No. 767-73-0024.\n\nNote: FAA AD 88-07-02 refers.\n\nCompliance: (1) Aeroplanes incorporating the requirements of FAA AD T87-13-51 \\- Prior to 31 December 1989.\n\n(2) Aeroplanes not incorporating the requirements of FAA AD T87-13-51 \\- Prior to issue of an Australian Certificate of Airworthiness.\n\nBackground: This Directive requires relocation of the engine electronic control switches (EEC) to prevent inadvertent fuel control switch shut off in lieu of EEC switch actuation. This requirement follows two overseas incidents of inadvertent engine shut down in flight, when the crew operated the fuel control switches to shut off instead of operating the EEC switches.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope — a specific safety modification for Boeing 767 engine control switches. It has not expanded beyond this single technical requirement."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined compliance pathways based on prior modification status","Single technical requirement referencing external Boeing Service Bulletin","No nested exceptions or conditional logic","Minimal cross-referencing (only one FAA AD reference and one Boeing bulletin)","Clear, specific applicability (all 767 series aircraft)"],"plain_english_summary":"This is a **safety order for Boeing 767 aircraft** that requires airlines to move the location of certain cockpit switches.\n\n**What it does:**\n- Orders the relocation of **engine electronic control (EEC) switches** — controls that manage engine performance\n- The switches must be moved to a new position specified in a Boeing technical bulletin\n\n**Why it matters:**\n- Two overseas flights had engines accidentally shut down mid-flight because pilots confused the EEC switches with nearby **fuel control switches**\n- The switches were too close together or looked too similar, causing pilots to hit the wrong one\n- This directive prevents potentially catastrophic engine failures by physically separating or repositioning these controls\n\n**Who must comply:**\n- **All Boeing 767 aircraft** operating in Australia\n- Aircraft already modified under a previous US safety order: must comply by **31 December 1989**\n- Aircraft not yet modified: must comply **before receiving an Australian airworthiness certificate**\n\n**Key point:** This is a **mandatory fix** — no 767 can legally fly in Australia without this switch relocation being done."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies to all model 767 series aeroplanes and requires relocation of the EEC switches per Boeing Service Bulletin No. 767‑73‑0024. The source text frames this as implementing a specific technical change to address two incidents of inadvertent engine shut down; nothing in the instrument expands or narrows the stated applicability beyond that group, so the practical scope aligns with the stated original intent. (Applicability; Requirement; Background)"},"complexity_factors":["Applicability to a single, clearly defined fleet: all model 767 series aeroplanes (lowers complexity). (Applicability)","Prescriptive technical requirement tied to a specific Boeing Service Bulletin (requires technical compliance but not discretionary interpretation). (Requirement)","Cross‑reference to external regulatory actions (FAA AD 88‑07‑02 and FAA AD T87‑13‑51) creates conditional compliance paths that require checking aircraft history. (Note; Compliance (1))","Two different compliance deadlines depending on whether an earlier FAA AD has been incorporated, which adds administrative steps for operators to determine the applicable deadline. (Compliance (1) & (2))","Linkage of compliance to issuance of an Australian Certificate of Airworthiness for some aeroplanes creates an operational interface between maintenance action and regulatory certification processes. (Compliance (2))"],"plain_english_summary":"This directive makes Boeing Service Bulletin 767-73-0024’s relocation of engine electronic control switches mandatory on all Boeing 767s, converting a manufacturer alteration into a regulatory requirement. It affects owners, operators and maintenance organisations, who must perform and certify the hardware change (at their cost) to prevent inadvertent in‑flight engine shutdown and to meet airworthiness/certification deadlines tied to prior FAA AD compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches","history":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches/history","analysis":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches/analysis","conflicts":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches/conflicts","importantCases":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches/important-cases","documents":"/api/acts/ad-b767-19-relocation-of-engine-electronic-control-switches/documents"}}