{"id":"F2006L00370","name":"AD/B767/219 - Aileron Control Override Quadrant","slug":"ad-b767-219-aileron-control-override-quadrant","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116989,"registerId":"commonwealth-F2006L00370-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 767 Series Aeroplanes","sectionType":"division","heading":"Boeing 767 Series Aeroplanes","content":"### Boeing 767 Series Aeroplanes\n\n| AD/B767/219 | Aileron Control Override Quadrant | 3/2006 |\n| ----------- | --------------------------------- | ------ |\n\n| Applicability: | Model B767 -200, -300 and -300F series aeroplanes with line numbers 837 to 918 inclusive.Note 1: AD/B767/189 covers those aeroplanes by earlier line number.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Replace the aileron control override quadrant with a modified unit, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin767-27A0175, Revision 1, dated 3 June 2004; or Boeing Service Bulletin767-27A0175, Revision 2, dated 5 August 2004.Note 2: This AD does not require accomplishing the actions specified by Step 5 of Figure 2 of Boeing Alert Service Bulletin 767-27A0175, Revision 1, or Boeing Service Bulletin 767-27A0175, Revision 2.2. Unless modified in accordance with the requirements of this Directive, no aileron control override quadrant may be installed on any aircraft.Note 3: FAA AD 2005-25-25 Amendment 39-14418 refers. |\n| Compliance:    | 1. Within 18 months after the effective date of this AD.2. As of the effective date of this AD.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 16 March 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |\n| Background:    | The existing steel ball bearings in the aileron override quadrant mechanism are subject to corrosion. In the event of other than normal conditions occurring in the primary aileron control path corroded steel balls bearings in the override quadrant may disable the secondary control path that could lead to a subsequent reduction in lateral controllability of the aeroplane. This Directive therefore requires the replacement of the aileron control quadrant with a modified assembly containing Corrosion Resistant Steel (CRES) ball bearings.                                                                                                                               |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n1 February 2006","sortOrder":0},{"sectionNumber":"AD/B767/219","sectionType":"part","heading":"AD/B767/219","content":"## AD/B767/219","sortOrder":1},{"sectionNumber":"Aileron Control Override Quadrant","sectionType":"part","heading":"Aileron Control Override Quadrant","content":"## Aileron Control Override Quadrant","sortOrder":2},{"sectionNumber":"3/2006","sectionType":"part","heading":"3/2006","content":"## 3/2006","sortOrder":3}],"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"},"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. The scope remains precisely limited to the aileron control override quadrant replacement as originally intended."},"complexity_factors":["Single, specific mechanical modification requirement with clear alternative compliance paths (two acceptable service bulletin revisions)","Limited applicability scope (specific aircraft models and line numbers only)","One explicit exemption (Step 5 of Figure 2 excluded from requirements)","Simple two-part compliance structure (replacement deadline + installation prohibition)","No defined terms section, no cross-references to other legislation beyond a reference to related FAA directive","Background provides clear safety rationale without legal conditionality"],"plain_english_summary":"This CASA Airworthiness Directive mandates that owners/operators of certain Boeing 767-200/-300/-300F (line numbers 837–918) replace the aileron control override quadrant within 18 months because its steel ball bearings can corrode and jam the backup roll control. The old, unmodified part may not be reinstalled after the effective date. The directive also exempts completing “Step 5 of Figure 2” from the referenced Boeing service bulletins."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive is narrowly scoped: it mandates replacement of the aileron control override quadrant only for Boeing 767 aircraft with line numbers 837–918 and prohibits installing unmodified units. It does not broaden applicability beyond those aircraft, and it references earlier AD coverage for other line numbers (AD/B767/189). The action aligns with the stated safety objective to address corrosion of steel ball bearings in the override quadrant."},"complexity_factors":["Targeted applicability by specific models and narrow line-number range (Applicability).","Mandatory part replacement with action tied to specific Boeing service bulletin revisions (Requirement 1 references Boeing Alert Service Bulletin 767-27A0175 Rev 1 and Service Bulletin Rev 2).","Prohibition on installing unmodified quadrants unless modified in accordance with the Directive (Requirement 1, Note 2).","Explicit exclusion of one step in the service bulletin (Step 5 of Figure 2 is not required), creating a minor procedural exception (Requirement 1, Note 2).","Fixed compliance deadline—work must be completed within 18 months—so operators must plan scheduling and downtime (Compliance 1).","Cross-reference to related ADs and authorities (FAA AD 2005-25-25 and AD/B767/189), requiring operators to reconcile multiple documents (Requirement 1, Applicability notes).","Technical task requiring parts and maintenance actions per manufacturer instructions, creating supply and shop-capacity considerations (Requirement/Accomplishment Instructions)."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 767-200, -300 and -300F aeroplanes (line numbers 837–918) to replace the aileron control override quadrant with a modified unit containing corrosion‑resistant ball bearings, following the referenced Boeing service bulletin instructions, and prohibits fitting unmodified quadrants. Compliance is required within 18 months. The stated aim is to prevent corrosion of steel ball bearings that could disable the secondary aileron control path and reduce lateral controllability. Operators pay for and schedule the replacement while the regulator enforces compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-219-aileron-control-override-quadrant","history":"/api/acts/ad-b767-219-aileron-control-override-quadrant/history","analysis":"/api/acts/ad-b767-219-aileron-control-override-quadrant/analysis","conflicts":"/api/acts/ad-b767-219-aileron-control-override-quadrant/conflicts","importantCases":"/api/acts/ad-b767-219-aileron-control-override-quadrant/important-cases","documents":"/api/acts/ad-b767-219-aileron-control-override-quadrant/documents"}}