{"id":"F2006B07360","name":"AD/TBM 700/13 Amdt 1 - Oil Cooler Interference","slug":"ad-tbm-700-13-amdt-1-oil-cooler-interference","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49477,"registerId":"commonwealth-F2006B07360-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TBM 700/13 Amdt 1 - Oil Cooler Interference","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAerospatiale (Socata) TBM 700 Series Aeroplanes\n\nAD/TBM 700/13\n\nAmdt 1\n\n  \nOil Cooler Interference 10/96\n\nApplicability: TBM 700 aircraft serial numbers 63, 68 to 71, 74, 76 to 106 and 108.\n\nRequirement: To prevent interference between the oil cooler outlet protective screen and the oil cooler core resulting in an engine oil leak, modify the oil cooler in accordance with Socata TBM 700 Aircraft Service Bulletin Number SB 70-060-79 Amendment 1.\n\nNote: DGAC Airworthiness Directive 95-034(B)R1 refers.\n\nCompliance: Effective 12 September 1996; unless previously accomplished in accordance with the original issue of this directive, before further flight.\n\nBackground: This directive was originally issued in July 1995 to require a modification of the oil cooler installation. The modification addressed reports of a possible oil leak developing if interference existed between the oil cooler core and the oil cooler outlet protective screen. This amendment reflects the manufacturer's revision to the requirement document. The revision, in part, clarifies the aircraft applicable and that the protective screen is to be removed permanently.\n\nThe original issue of this Airworthiness Directive became effective on 22 June 1995.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly scoped to its original purpose. The changes from the original 1995 directive are minor clarifications: specifying exact aircraft serial numbers and confirming the protective screen removal is permanent. There is no scope creep."},"complexity_factors":["Single, specific technical requirement with clear reference to manufacturer service bulletin","Limited applicability list (specific serial numbers only)","No defined terms section","No cross-referencing to other legislation beyond a single note about a French aviation authority document","Simple conditional logic: comply unless already done under previous version","Total length: approximately 200 words"],"plain_english_summary":"This safety order requires owners, operators and maintenance organisations of TBM 700 aeroplanes with serial numbers 63, 68–71, 74, 76–106 and 108 to modify the engine oil cooler per Socata Service Bulletin SB 70‑060‑79 Amendment 1, permanently removing the protective screen before the next flight (unless already done under the 1995 order).\n\nThe modification prevents the screen from rubbing the oil cooler core, eliminating a known source of in‑flight oil leaks and potential engine failure; the amendment clarifies affected aircraft and confirms permanent screen removal."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The amendment revises the original directive by clarifying which TBM 700 serial numbers are applicable and by specifying that the oil cooler outlet protective screen must be removed permanently. In short, it refines and clarifies the original requirement document rather than introducing a new technical concept (Background)."},"complexity_factors":["Narrow applicability to a listed set of TBM 700 serial numbers increases administrative checking of affected airframes (Applicability).","Requires a physical technical modification carried out to the manufacturer’s Service Bulletin SB 70-060-79 Amendment 1 — needs maintenance capability, parts and work time (Requirement).","Immediate compliance condition: action must be done before further flight after the effective date, creating operational scheduling pressure for operators (Compliance: effective 12 September 1996; before further flight).","Mandated permanent removal of the protective screen changes maintenance and parts decisions for affected aircraft (Background: clarification that the protective screen is to be removed permanently).","Cross-reference to a foreign airworthiness directive (DGAC 95-034(B)R1) may require harmonised documentation and traceability for records and regulators (Note).","Enforcement sits with the Civil Aviation Safety Authority under the Part 39 directive framework, so regulatory compliance and record-keeping are required (header: Civil Aviation Regulations 1998, PART 39 - 105).","Costs and downtime impliedly borne by aircraft operators since the directive mandates modification but does not provide funding or alternatives (Requirement/Compliance)."],"plain_english_summary":"Requires specified Socata TBM 700 aeroplanes to have their oil cooler modified to remove the oil cooler outlet protective screen, following the manufacturer’s service bulletin, to prevent interference that could cause an engine oil leak. Affects TBM 700 serial numbers 63, 68–71, 74, 76–106 and 108. Operators must complete the modification before further flight; the amendment clarifies which aircraft are covered and that the protective screen is to be removed permanently."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference","history":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference/history","analysis":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference/analysis","conflicts":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference/conflicts","importantCases":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference/important-cases","documents":"/api/acts/ad-tbm-700-13-amdt-1-oil-cooler-interference/documents"}}