{"id":"F2006B03286","name":"AD/B767/105 Amdt 1 - Instrument Landing System Receivers","slug":"ad-b767-105-amdt-1-instrument-landing-system-receivers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42723,"registerId":"commonwealth-F2006B03286-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"“Category II and III operations are proh","sectionType":"part","heading":"“Category II and III operations are prohibited.”, and","content":"# “Category II and III operations are prohibited.”, and\n\n(ii) Revise Limitations Section of the AFM to include the following statement:","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":true,"description":"The instrument expands operational and maintenance obligations compared with the prior state by (a) expressly prohibiting Category II and III operations until affected ILS receivers are addressed, and (b) moving from a recurring inspection regime (Requirement 1.a at ≤64 flight cycles) to a mandatory modification/replacement pathway that, once completed (conversion to P/N 066-50006-1101 per SB M-4426 Rev 3), constitutes terminating action and permits removal of the recurring inspection and placard (see Requirement 1.a/1.b and paragraph 4)."},"complexity_factors":["Technical specificity: requires identification of internal fault codes (“N1” or “Nm”) in the ILS receiver fault memory.","Parts and configuration control: ties required action to specific part numbers P/N 066-50006-0101 (existing) and converted P/N 066-50006-1101 (modified).","Dependency on an external document: mandatory modification must follow AlliedSignal SB M-4426 (RIA-35B-34-6) Revision 3.","Multiple compliance paths: inspection with recurring intervals versus replacement/modification as terminating action (interaction with Requirement 1.a and 1.b).","Operational constraint: immediate prohibition of Category II/III operations until addressed, requiring Flight Manual and placard amendments.","Timing and scheduling: inspection interval specified (prior to 2 Oct 1998 and thereafter at intervals not to exceed 64 flight cycles) imposes regular maintenance planning.","Installation restriction: discrepant receivers found with fault codes cannot be re‑installed unless modified per the SB, creating a recordkeeping and parts-tracking burden."],"plain_english_summary":"This directive requires operators to inspect RIA‑35B ILS receivers for internal fault codes N1/Nm, prohibits Category II and III landing operations until affected receivers are addressed, and mandates replacing or modifying discrepant units to part number 066-50006-1101 in accordance with AlliedSignal Service Bulletin M-4426 Rev 3. Operators must amend the Flight Manual/placard as required and, once all affected receivers are modified, the recurring inspections and placard requirement may be removed."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This appears to be a focused amendment to an existing Airworthiness Directive. The scope remains tightly constrained to addressing a specific safety defect in ILS receivers for Boeing 767 aircraft. The amendment structure (modifying specific requirements while leaving compliance dates unchanged) suggests incremental refinement rather than scope expansion."},"complexity_factors":["Multiple cross-references to external documents (FAA AD 99-10-14, AlliedSignal Service Bulletin M-4426)","Technical aviation terminology requiring specialized knowledge (fault codes \"N1\"/\"Nm\", part numbers, terminating action)","Conditional logic: different requirements based on inspection findings","Interdependent requirements: Requirement 1.a inspection triggers actions in Requirements 2-4","Specific compliance timeline with repetitive inspection intervals (64 flight cycles)","Amendment structure (Amdt 1) modifying previous requirements without fully restating them"],"plain_english_summary":"This AD bars Category II/III landings on Boeing 767s equipped with AlliedSignal/Honeywell RIA‑35B ILS receivers (P/N 066‑50006‑0101) until required inspections and corrective work are completed.\n\nIt mandates repetitive checks for specific fault codes, replacement/modification with the updated receiver (P/N 066‑50006‑1101), and placard/flight‑manual warnings to prevent incorrect ILS guidance during low‑visibility approaches and reduce landing risk."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers","history":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers/history","analysis":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers/analysis","conflicts":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers/conflicts","importantCases":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers/important-cases","documents":"/api/acts/ad-b767-105-amdt-1-instrument-landing-system-receivers/documents"}}