{"id":"F2006B11185","name":"AD/LTS/8 - Number 4 Bearing Distress","slug":"ad-lts-8-number-4-bearing-distress","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56888,"registerId":"commonwealth-F2006B11185-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/LTS/8 - Number 4 Bearing Distress","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  AlliedSignal (Lycoming) Turbine Engines - LTS 101 Series\n\n \n\nAD/LTS/8 Number 4 Bearing Distress 3/88\n\nCANCELLED.\n\n \n\nBackground:  This Directive is cancelled because the Requirement document has been superseded by and incorporated into FAA AD 84-26-10 which is the Requirement document of new AD/LTS/9 which is issued concurrent with this cancellation notice.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a cancellation instrument that performs exactly its intended function: removing an obsolete airworthiness directive. It does not expand or alter the original scope of aviation safety regulation."},"complexity_factors":["Single operative provision: cancellation of a previous directive","No defined terms section","No conditional logic or exceptions","Minimal cross-referencing (only references to superseded FAA AD and new AD/LTS/9)","Extremely short document (under 150 words of substantive content)","Straightforward administrative action with no substantive regulatory requirements"],"plain_english_summary":"This is a **cancellation notice** for an old aviation safety rule.\n\n**What it is:**\n- An Airworthiness Directive (AD) is a mandatory safety instruction issued by the Civil Aviation Safety Authority (CASA) that requires aircraft owners or operators to inspect, repair, or modify their aircraft when a safety problem is discovered.\n\n**What this specific document does:**\n- It cancels **AD/LTS/8**, a 1988 directive concerning \"Number 4 Bearing Distress\" in AlliedSignal (Lycoming) LTS 101 series turbine engines.\n- The cancellation happens because the old safety requirement has been replaced by a newer US Federal Aviation Administration (FAA) directive (AD 84-26-10), which is now being used as the basis for a new Australian directive (**AD/LTS/9**).\n\n**Who it affects:**\n- Owners and operators of aircraft fitted with AlliedSignal (Lycoming) LTS 101 series turbine engines.\n\n**Why it matters:**\n- It tells aircraft operators they no longer need to follow the old AD/LTS/8 requirements. Instead, they must follow the new AD/LTS/9, which incorporates updated safety standards from the US regulator. This ensures Australian aircraft meet current international safety standards for engine bearing issues."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"Yes. The scope of enforceable requirements changed from AD/LTS/8 (now cancelled) to the requirement document identified as FAA AD 84-26-10, which is incorporated into and used as the Requirement document for the newly issued AD/LTS/9. The cancellation removes AD/LTS/8 as the operative instrument and shifts the locus of the requirement to the FAA AD and AD/LTS/9 (see Background paragraph)."},"complexity_factors":["Very short instrument: plain cancellation and cross-reference with no new technical requirements recorded.","Cross-jurisdictional reference: incorporation of an FAA AD (84-26-10) into a new domestic AD (AD/LTS/9) requires readers to consult an external document.","Traceability burden: regulated parties must identify and obtain the new requirement documents (FAA AD 84-26-10 and AD/LTS/9) to know their obligations.","Absence of transition detail: no transitional procedures or timing specified in the cancellation notice, so implementers must look elsewhere."],"plain_english_summary":"AD/LTS/8 (“Number 4 Bearing Distress”) is formally cancelled and its requirements have been superseded and incorporated into FAA AD 84-26-10, which is adopted as the requirement document for the concurrently issued AD/LTS/9. \n\nThis affects owners, operators and maintainers of AlliedSignal (Lycoming) LTS 101 series engines, who must follow FAA AD 84-26-10/AD/LTS/9 to determine current inspection and compliance obligations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-lts-8-number-4-bearing-distress","history":"/api/acts/ad-lts-8-number-4-bearing-distress/history","analysis":"/api/acts/ad-lts-8-number-4-bearing-distress/analysis","conflicts":"/api/acts/ad-lts-8-number-4-bearing-distress/conflicts","importantCases":"/api/acts/ad-lts-8-number-4-bearing-distress/important-cases","documents":"/api/acts/ad-lts-8-number-4-bearing-distress/documents"}}