{"id":"F2005L01756","name":"AD/BELL 222/14 Amdt 1 - Horizontal Stabiliser Assembly","slug":"ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":35848,"registerId":"commonwealth-F2005L01756-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bell Helicopter Textron Canada (BHTC) 22","sectionType":"division","heading":"Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters","content":"### Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters\n\n| AD/BELL 222/14 Amdt 1 | Horizontal Stabiliser Assembly | 8/2005 |\n| --------------------- | ------------------------------ | ------ |\n\n| Applicability: | Model 222, 222B, and 222U helicopters, with horizontal stabiliser assembly part number 222-035-250-101, -103, or -105, installed.                                                                                                                                                                                                                                                                                     |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Perform Part A of the Accomplishment Instructions of Bell Helicopter Textron Alert Service Bulletin 222-89-53 or 222U-89-27, as applicable.Note 1: FAA AD 89-17-05 Amendment 39-6276 refers.Note 2: The requirements of this Directive do not apply if horizontal stabiliser part number 222-035-250-107 is installed for Model 222 or part number 222-035-250-109 is installed for Models 222B and 222U helicopters. |\n| Compliance:    | For horizontal stabilisers with more than 2,100 hours total time in service:Unless the initial inspection is already accomplished, within 50 hours time in service after 4 August 2005.For horizontal stabilisers with less than 2,100 hours total time in service:Accomplish before the accumulation of 2,150 hours total time in service.Inspect thereafter at intervals not to exceed 300 hours time in service.   |\n|                | This Amendment becomes effective on 4 August 2005.                                                                                                                                                                                                                                                                                                                                                                    |\n| Background:    | There have been two in-service horizontal stabiliser fatigue failures. Undetected cracking of the horizontal stabiliser could result in failure of the stabiliser and major damage and/or loss of control.                                                                                                                                                                                                            |\n\n|     | Amendment 1 is issued to introduce the requirements of the related FAA AD, which supersedes the requirements of the original issue of this Directive. |\n| --- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n24 June 2005","sortOrder":0},{"sectionNumber":"AD/BELL 222/14 Amdt 1","sectionType":"part","heading":"AD/BELL 222/14 Amdt 1","content":"## AD/BELL 222/14 Amdt 1","sortOrder":1},{"sectionNumber":"Horizontal Stabiliser Assembly","sectionType":"part","heading":"Horizontal Stabiliser Assembly","content":"## Horizontal Stabiliser Assembly","sortOrder":2},{"sectionNumber":"8/2005","sectionType":"part","heading":"8/2005","content":"## 8/2005","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 1 changes the original Directive by introducing the requirements of the related FAA AD and superseding the original issue; it aligns the AD with the FAA's requirements and the Bell Alert Service Bulletins while retaining the same target models and specified part-number scope (Amendment 1; Requirement; Applicability)."},"complexity_factors":["Conditional applicability limited to Models 222/222B/222U with stabiliser part numbers 222-035-250-101, -103 or -105 and explicit exemptions for part numbers 222-035-250-107 (Model 222) and 222-035-250-109 (Models 222B/222U) (Applicability; Note 2).","Multiple time-in-service thresholds and recurring inspection interval: >2,100 hours require inspection within 50 hours after 4 Aug 2005; <2,100 hours before 2,150 hours; thereafter every 300 hours (Compliance).","Dependence on external technical documents: requires performing Part A of Bell Alert Service Bulletin 222-89-53 or 222U-89-27 and references FAA AD 89-17-05 (Requirement; Note 1).","Technical nature of task — inspections target fatigue cracking and may require skilled maintenance, potential repairs or parts replacement (Background; Requirement).","Short mandatory windows for higher-time components and an effective date create operational scheduling pressure for operators (Compliance; Effective date: 4 Aug 2005).","Amendment 1 introduces the FAA AD requirements and supersedes the original Directive, altering the compliance baseline and references (Amendment 1)."],"plain_english_summary":"This directive requires operators of Bell 222, 222B and 222U helicopters fitted with certain horizontal stabiliser part numbers to carry out the Part A inspection in the applicable Bell Alert Service Bulletin (222‑89‑53 or 222U‑89‑27) on the timetable set by the AD, with recurring inspections every 300 flight hours; some later part numbers are exempt. The regulator states two in‑service stabiliser fatigue failures occurred; operators bear inspection and scheduling costs and must follow the referenced service bulletins and FAA AD."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of addressing horizontal stabiliser fatigue failures. The amendment simply updates the technical requirements to align with the related FAA Airworthiness Directive, without expanding the scope beyond the original safety purpose."},"complexity_factors":["Short, single-purpose directive focused on one specific mechanical component","Only 3 defined part numbers in applicability, with 2 exemption part numbers","Clear conditional logic based on flight hours (two distinct compliance paths)","Single cross-reference to FAA AD 89-17-05 and Bell service bulletins","No nested exceptions or layered definitions","Straightforward compliance timeline (fixed date or hours-based trigger)","Total length: approximately 250 words of substantive content"],"plain_english_summary":"This CASA Airworthiness Directive requires recurring inspections of the horizontal stabiliser on Bell 222, 222B and 222U helicopters with certain older stabiliser part numbers, because metal fatigue cracks have caused in‑flight failures. Owners/operators must inspect soon or by a defined flight-hour threshold and repeat inspections at regular intervals; helicopters with newer upgraded stabilisers are exempt. It’s an updated AD aligning Australia with the FAA to prevent loss of control from stabiliser failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly","history":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly/history","analysis":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly/analysis","conflicts":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly/conflicts","importantCases":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly/important-cases","documents":"/api/acts/ad-bell-222-14-amdt-1-horizontal-stabiliser-assembly/documents"}}