{"id":"F2006B10956","name":"AD/JETSTREAM/87 Amdt 2 - Propeller Blade Inspection and Engine Ground Operation Limitation","slug":"ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56523,"registerId":"commonwealth-F2006B10956-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JETSTREAM/87 Amdt 2 - Propeller Blade Inspection and Engine Ground Operation Limitation","content":"![](image.001.png)\n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/JETSTREAM/87 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CASR 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 (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nBritish Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\nAD/JETSTREAM/87\n\nAmdt 2\n\n  \n\nPropeller Blade Inspection and Engine Ground Operation Limitation\n\n  \n1/2004\n\nApplicability: Jetstream 3200 series aircraft with McCauley 4HFR34C653/L106FA-0 propellers installed.\n\nRequirement: Install a placard limiting engine operation on the ground with a tailwind component in accordance with Accomplishment Instructions, paragraph B(2), of Jetstream Service Bulletin (SB) 61-JK12170 or 61-JK12170 Revision 1. Ensure maintenance staff and flight crews are aware of the new operating restrictions for engine operation on the ground.\n\nNote : CAA (UK) AD 003-04-2000 and Jetstream mandatory SB 61-JK12170 Revision 1 refer.\n\nCompliance: Remains unchanged as detailed in amendment 1 of this Directive; Unless previously accomplished, no later than 14 November 2000.\n\nThis Amendment becomes effective on 22 January 2004.\n\nBackground: This amendment updates the reference document. The mandatory inspection requirements that were transferred to AD/PMC/46 are no longer applicable due to the manufacturer introducing life limits for the propeller blades. Placarding of the cockpit is still required.\n\nThis action was prompted by the report of a large chordwise crack found in a propeller blade during overhaul. The potential for such cracks is considered to be associated with operating the engine on the ground with a tailwind component.\n\nAmendment 1 of this Directive deleted the propeller inspection requirements that are now mandated in AD/PMC/46 because other aircraft types are affected.\n\nBritish Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\nAD/JETSTREAM/87 Amdt 2 (continued)\n\n![Signature of Jim Coyne Delegate of the Civil Aviation Safety Authority](image.002.png)  \nAmendment 1 of this Directive became effective on 2 November 2000\\. The original issue of this Directive became effective on 14 June 2000.\n\nJim Coyne\n\nDelegate of the Civil Aviation Safety Authority 4 December 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 24 December 2003.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The original AD (June 2000) required both propeller blade inspections AND placarding. Amendment 1 (November 2000) removed the inspection requirements, transferring them to AD/PMC/46 because other aircraft types were affected. Amendment 2 (this version) merely updates the reference document. The scope has narrowed significantly from a comprehensive inspection and placarding regime to purely placarding and awareness requirements, with physical inspections now handled under a different directive using life-limit methodology."},"complexity_factors":["Very short document (approximately 400 words)","Only 1 defined term implicitly referenced (the service bulletin)","Single primary requirement with clear alternative references (SB 61-JK12170 or its Revision 1)","No nested conditional logic or exceptions","Simple cross-reference structure (points to UK CAA AD and manufacturer service bulletin)","Compliance date remains unchanged from previous amendment (no new calculations required)"],"plain_english_summary":"This AD applies to British Aerospace Jetstream 3200 aircraft fitted with certain McCauley propellers and mandates a cockpit placard limiting ground engine runs with a tailwind to prevent propeller blade cracking and possible catastrophic failure.  \n\nAmendment 2 removes earlier blade inspection requirements (now covered by AD/PMC/46 via manufacturer life limits), retains the placard rule, and updates the service bulletin reference. Operators, maintenance crews and pilots must comply."},"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":3,"scope_assessment":{"changed":true,"description":"Yes. The amendment narrows the active requirements by removing the mandatory propeller-blade inspections from this AD and transferring them to AD/PMC/46, while retaining the placarding and awareness requirement and updating the service-bulletin reference (Background; Requirement). Operationally, inspection obligations now lie under a different AD, leaving this instrument to mandate only cockpit placarding and crew/maintenance awareness."},"complexity_factors":["Narrow applicability: applies only to Jetstream 3200 series with McCauley 4HFR34C653/L106FA-0 propellers (Applicability).","Single, discrete action: requires installation of a placard and crew/maintenance awareness rather than technical modification (Requirement).","Cross-references to other instruments and documents: relies on Jetstream Service Bulletin 61-JK12170/Revision 1 and cites CAA (UK) AD 003-04-2000 (Requirement / Note).","Historical/administrative changes: this amendment revokes AD/JETSTREAM/87 Amdt 1 and updates reference documents (intro / Background).","Scope transfer: mandatory inspection requirements were removed here and transferred to AD/PMC/46, changing where compliance obligations sit (Background).","Compliance timing and legal effect: compliance deadline remains as in amendment 1 (no later than 14 November 2000) while the amendment’s effective date is later, creating an administratively awkward timeline (Compliance / Effective date).","Operational burden: imposes low-cost physical and training compliance steps on operators and maintenance organisations (Requirement / Background).","Regulatory discretion: issued under CASR 1998 subregulation 39.1(1) by a CASA delegate who revoked the prior AD (intro)."],"plain_english_summary":"This Airworthiness Directive requires operators of BAe Jetstream 3200 aircraft fitted with McCauley 4HFR34C653/L106FA-0 propellers to install a cockpit placard limiting engine operation on the ground when there is a tailwind, and to ensure maintenance staff and flight crews know the restriction. It updates a service-bulletin reference and removes separate mandatory blade inspections (those inspections were moved to a different AD); the cost and work of compliance fall to aircraft operators and their maintenance organisations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation","history":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation/history","analysis":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation/analysis","conflicts":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation/conflicts","importantCases":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation/important-cases","documents":"/api/acts/ad-jetstream-87-amdt-2-propeller-blade-inspection-and-engine-ground-operation-limitation/documents"}}