{"id":"F2006B03110","name":"AD/B747/210 - Aileron Cable System","slug":"ad-b747-210-aileron-cable-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42482,"registerId":"commonwealth-F2006B03110-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/210 - Aileron Cable System","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 747 Series Aeroplanes\n\nAD/B747/210 Aileron Cable System 9/99\n\nApplicability: Model 747 series aircraft, as listed in Boeing Service Bulletin 747-27-2367 Revision 1, dated December 17 1998.\n\nRequirement: Inspect aileron cables and aileron cable markers in accordance with the technical requirements of FAA AD 99-11-15 Amdt 39-11186.\n\nNote: Boeing Service Bulletins 747-27-2367 and 747-27-2367 Revision 1 refer.\n\nCompliance: As specified in the Requirement Document with a revised effective date of 9 September 1999.\n\nThis Airworthiness Directive becomes effective on 9 September 1999.\n\nBackground: The FAA received a report of an aileron cable failure, due to improper installation onto the wrong groove of an aileron cable drum. The FAA AD issued as a result requires a one-time visual inspection to detect improperly installed or frayed aileron cables, and a one-time visual inspection to detect improper identification or location of the cable markers.","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 failure mode. It has not expanded beyond its original purpose of mandating inspections for aileron cable installation errors."},"complexity_factors":["Very short document (under 200 words)","Only 1 defined term implicitly referenced (the Boeing Service Bulletin)","No nested conditional logic or exceptions","Single compliance requirement with direct reference to external technical document","No cross-referencing between multiple sections of the instrument itself"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order for aircraft owners and operators.\n\n**What it does:**\nOrders inspections of the aileron cable systems on Boeing 747 aircraft. Ailerons are the hinged surfaces on the wings that control the plane's roll (tilting left or right). The cables connect the pilot's controls to these surfaces.\n\n**Why it matters:**\nThe US Federal Aviation Administration (FAA) discovered that an aileron cable had failed because it was installed incorrectly on the wrong groove of a cable drum. A failed aileron cable could cause loss of roll control — a serious flight safety risk. This directive prevents similar failures by requiring visual inspections to catch:\n- Improperly installed or frayed cables\n- Missing or wrongly placed cable markers (which help identify correct routing)\n\n**Who it affects:**\nOwners and operators of Boeing 747 series aircraft covered by a specific Boeing service bulletin.\n\n**What must be done:**\nA one-time visual inspection following the technical requirements set out in the referenced FAA directive (AD 99-11-15). The inspection became mandatory from 9 September 1999."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope remains focused on a one-time visual inspection of aileron cables and cable markers for the Boeing 747 models listed in Boeing Service Bulletin 747-27-2367 Revision 1. The instrument aligns with the FAA AD it references and does not expand the stated subject matter beyond detecting improperly installed or frayed cables and incorrect marker identification/location. (Applicability; Requirement; Background)"},"complexity_factors":["Relatively narrow, single-issue subject matter (one-time visual inspections of aileron cables and markers).","Dependence on external documents (FAA AD 99-11-15 and Boeing Service Bulletin 747-27-2367 Rev 1) for technical procedures and applicability increases practical complexity.","Mandatory compliance and an explicit effective date require operator action and scheduling, creating operational coordination complexity.","Limited prescriptive detail in the AD text itself (delegates inspection methods to referenced documents), meaning implementers must consult multiple sources.","Applicability is confined to aircraft listed in an external service bulletin rather than enumerated in the AD, so identifying affected tail numbers requires cross-referencing."],"plain_english_summary":"This AD requires operators of specified Boeing 747 models to perform a one‑time visual inspection of aileron cables and cable markers, following FAA AD 99‑11‑15 and Boeing Service Bulletin 747‑27‑2367 Rev 1, effective 9 September 1999. It aims to detect wrong‑groove installations, frayed cables, or mislocated markers after a reported cable failure. Operators bear the inspection and any corrective costs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-210-aileron-cable-system","history":"/api/acts/ad-b747-210-aileron-cable-system/history","analysis":"/api/acts/ad-b747-210-aileron-cable-system/analysis","conflicts":"/api/acts/ad-b747-210-aileron-cable-system/conflicts","importantCases":"/api/acts/ad-b747-210-aileron-cable-system/important-cases","documents":"/api/acts/ad-b747-210-aileron-cable-system/documents"}}