{"id":"F2006B03299","name":"AD/B767/118 - Engine Thrust Control Cables","slug":"ad-b767-118-engine-thrust-control-cables","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42736,"registerId":"commonwealth-F2006B03299-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and © at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/B767/118 Engine Thrust Control Cables","sectionType":"part","heading":"AD/B767/118 Engine Thrust Control Cables 6/2000","content":"# AD/B767/118 Engine Thrust Control Cables 6/2000\n\nApplicability: Model 767 series aircraft powered with either P&W JT9D-7R4 series engines or GE CF6-80A series engines.\n\nRequirement: 1. Inspect the engine thrust control cables in accordance with the technical requirements in Appendix 1 of FAA AD 99-21-18 Amdt 39-11363. Repair any faults found in accordance with the procedures specified in the Boeing 767 maintenance manual before further flight.\n\n2. For those aircraft identified in Boeing Service Bulletin 767-76-0010 Revision 1 dated 20 February 1992. Replace the two non-metallic pulleys of the thrust control cables with aluminium pulleys and re rig the engine thrust control cables in accordance with Boeing SB 767-76-0010 Revision 1.\n\nNote 1: Aircraft previously fitted with aluminium pulleys in accordance with the original issue of SB 767-76-0010 can be certified as complying with Requirement 2 of this Directive.\n\nNote 2: FAA AD 99-21-18 Amendment 39-11363 refers.\n\nCompliance: 1. Within 18 months time in service or 4,500 flight hours, whichever occurs first, after the effective date of this Airworthiness Directive. Thereafter, re-inspect at intervals not exceeding 18 months time in service or 4,500 flight hours, whichever occurs first.\n\n2. Unless previously carried out, within 18 months time in service or 4,500 flight hours, whichever occurs first, after the effective date of this Airworthiness Directive.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD does not indicate an expansion or narrowing of scope beyond the described applicability. It applies to Boeing 767 aircraft with the two specified engine families and mandates inspections, repairs and pulley replacement where applicable; prior installations performed per the earlier service bulletin are accepted as compliant."},"complexity_factors":["Cross-reference to external mandatory documents (FAA AD 99-21-18 and Boeing Service Bulletin 767-76-0010 Revision 1), requiring users to consult multiple sources for full technical detail.","Technical repair instructions must follow Boeing 767 maintenance manual, creating dependency on manufacturer procedures and potentially certified maintenance facilities.","Recurring compliance interval (every 18 months or 4,500 flight hours, whichever first) creates ongoing scheduling and record-keeping obligations for operators.","Applicability limited to specific engine types (P&W JT9D-7R4 and GE CF6-80A), requiring operators to determine aircraft/engine fitment precisely.","Requirement to repair any discovered faults before further flight can impose immediate operational disruption and potential grounding until rectified.","Replacement action involves parts change (non-metallic to aluminium pulleys) and re-rigging, which may involve lead times for parts and specialised labour.","Note permitting prior-compliant modifications to be certified as meeting the AD introduces a record/verification burden for demonstrating conformity.","Legal basis under CAR 1998 subregulation 39.1(1) centralises decision-making with the CASA delegate, leaving limited operational discretion to operators."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 767s with P&W JT9D-7R4 or GE CF6-80A engines to inspect engine thrust-control cables, repair faults before further flight, and — where fitted with specified non-metallic pulleys — replace them with aluminium pulleys and re‑rig the controls. CASA issues the requirement and operators bear the inspection, repair, replacement and recurrent inspection costs. The stated aim (by referencing FAA and Boeing materials) is to correct an identified unsafe condition."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original, narrow scope: addressing a specific unsafe condition in engine thrust control cables on defined Boeing 767 aircraft models. It does not expand beyond this technical safety issue."},"complexity_factors":["Short, single-purpose document (approximately 300 words)","Only 2 main requirements with clear, sequential numbering","Minimal defined terms — relies on external technical references (FAA AD 99-21-18, Boeing Service Bulletin 767-76-0010)","Simple conditional logic: 'whichever occurs first' compliance timing and one exemption note for previously modified aircraft","No nested exceptions or complex cross-referencing within the document itself — complexity is offloaded to external technical documents"],"plain_english_summary":"This safety order requires operators of Boeing 767s with Pratt & Whitney JT9D-7R4 or GE CF6-80A engines to inspect engine thrust-control cables, repair defects before flight, and replace specified plastic pulleys with aluminum per Boeing service guidance. It aims to prevent loss of pilot control over engine power. Initial actions are due within 18 months or 4,500 flight hours (whichever first), with the same interval for repeat inspections."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-118-engine-thrust-control-cables","history":"/api/acts/ad-b767-118-engine-thrust-control-cables/history","analysis":"/api/acts/ad-b767-118-engine-thrust-control-cables/analysis","conflicts":"/api/acts/ad-b767-118-engine-thrust-control-cables/conflicts","importantCases":"/api/acts/ad-b767-118-engine-thrust-control-cables/important-cases","documents":"/api/acts/ad-b767-118-engine-thrust-control-cables/documents"}}