{"id":"F2006B07600","name":"AD/WHE/5 - Michelin Aircraft Tyres","slug":"ad-whe-5-michelin-aircraft-tyres","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50275,"registerId":"commonwealth-F2006B07600-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/WHE/5 - Michelin Aircraft Tyres","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nWheels and Tyres\n\nAD/WHE/5 Michelin Aircraft Tyres 2/96 TX\n\nApplicability: Michelin Tyre Part Number 028-520-1 (22x5.75-12/10PR) that are installed on, but not limited to, Cessna Model 650 aircraft.\n\nRequirement: Remove from service the Applicable tyres with the following serial numbers:\n\n| Serial Nos. | Serial Nos. | Serial Nos. | Serial Nos. |\n| ----------- | ----------- | ----------- | ----------- |\n| 4279N00339  | 4279N00340  | 4279N00341  | 4279N00342  |\n| 4279N00343  | 4279N00597  | 4279N00598  | 4279N00599  |\n| 4279N00600  | 4279N00601  | 4280N00075  | 4280N00199  |\n| 4280N00200  | 4280N00201  | 4280N00203  | 4280N00204  |\n| 4280N00205  | 4280N00206  | 4280N00360  | 4280N00361  |\n| 4282N00352  | 4283N00099  | 4283N00100  | 4283N00101  |\n| 4283N00102  | 4283N00200  | 4283N00201  | 4283N00202  |\n| 4283N00453  | 4283N00454  | 4283N00455  | 4283N00456  |\n| 4284N00612  | 4284N00613  | 4284N00614  | 4284N00615  |\n| 4284N00616  | 4285N00100  | 4285N00101  | 4285N00102  |\n| 4285N00103  | 4285N00104  | 4285N00105  | 4285N00106  |\n| 4285N00107  | 4285N00108  | 4285N00347  | 4285N00348  |\n| 4285N00349  | 4285N00353  | 4285N00354  | 4285N00355  |\n| 4285N00356  | 4285N00608  | 4285N00609  | 4286N00103  |\n| 4286N00104  | 4286N00105  | 4286N00106  | 4286N00442  |\n| 4286N00443  | 4286N00444  | 4286N00445  | 4286N00446  |\n| 4286N00447  | 4286N00448  | 4286N00449  | 4286N00450  |\n| 4286N00600  | 4286N00601  | 4286N00602  | 4286N00603  |\n| 4286N00604  | 4286N00605  | 4286N00606  | 4286N00608  |\n| 4286N00609  | 4287N00088  | 4287N00089  | 4287N00090  |\n| 4287N00091  | 4287N00092  | 4287N00093  | 4287N00094  |\n| 4287N00095  | 4287N00096  | 4287N00097  | 4287N00357  |\n| 4287N00358  | 4287N00359  | 4287N00360  | 4287N00361  |\n| 4287N00362  | 4287N00363  | 4287N00364  | 4288N00118  |\n| 4288N00119  | 4288N00120  | 4288N00121  | 4288N00302  |\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n| 4288N00303 | 4288N00304 | 4288N00305 | 4288N00306 |\n| ---------- | ---------- | ---------- | ---------- |\n| 4288N00307 | 4290N00111 | 4290N00113 | 4290N00114 |\n| 4290N00115 | 4290N00116 | 4290N00117 | 4290N00355 |\n| 4290N00356 | 4290N00606 | 4290N00607 | 4290N00608 |\n| 4290N00609 | 4290N00610 | 4290N00611 | 4290N00612 |\n| 4291N00082 | 4291N00083 | 4291N00084 | 4291N00085 |\n| 4291N00086 | 4291N00087 | 4291N00088 | 4291N00089 |\n| 4291N00091 | 4291N00273 | 4291N00274 | 4291N00275 |\n| 4291N00276 | 4291N00277 | 4291N00278 | 4291N00620 |\n| 4291N00621 |            |            |            |\n\nNote: FAA Priority Letter AD 95-24-10 refers.\n\nCompliance: Prior to further flight after 30 November 1995.\n\nBackground: There have been two reports of failure (rupture) of the main landing gear tyre during operations on Cessna Citation VII aircraft. The cause of the failures is attributed to separations that developed in the crown region of the tyre due to low adhesion caused by misplaced rubber compound.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow, targeted scope. It addresses a specific manufacturing defect in a specific batch of tyres identified by serial number. There is no evidence of scope creep; the directive precisely targets the safety risk identified (two reported failures) without expanding to unrelated products or open-ended requirements."},"complexity_factors":["Single, unambiguous requirement: remove specific serial-numbered tyres","No conditional logic or exceptions—applies to all listed serial numbers without qualification","No defined terms requiring interpretation","Straightforward applicability test (part number + serial number matching)","Simple compliance deadline (prior to further flight after fixed date)","Minimal cross-referencing (only one external FAA document mentioned for background)","Document is essentially a lookup table of serial numbers with a single imperative command"],"plain_english_summary":"CASA orders 127 Michelin tyres (part no. 028-520-1, size 22x5.75-12/10PR) off Australian-registered aircraft immediately, with the listed serial numbers to be removed before any flight after 30 Nov 1995. \n\nThis mandatory safety order affects owners/operators of Cessna Model 650s (and any aircraft using these tyres), maintenance organisations and airworthiness officers after two in‑service ruptures caused by a manufacturing defect that risks loss of control during takeoff or landing."},"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":false,"description":"The directive confines action to Michelin tyre Part Number 028-520-1 and the listed serial numbers, applying to tyres installed on Cessna Model 650 and other aircraft; it mandates removal before further flight after 30 November 1995. There is no expansion of scope beyond those specified tyres or the stated compliance requirement within the text provided."},"complexity_factors":["Narrow, specific applicability: single part number and a long catalogue of individual serial numbers to check and match.","Immediate compliance deadline (prior to further flight after 30 Nov 1995) creating operational urgency and potential flight cancellations.","Verification and maintenance-record burden on operators and inspectors to identify and trace affected tyres.","Limited regulatory discretion — requirement is mandatory, reducing interpretive complexity but increasing enforcement clarity.","Cross-reference to FAA Priority Letter AD 95-24-10 may require operators to consult external material for background.","Replacement sourcing and logistics costs for operators once tyres are removed from service."],"plain_english_summary":"This airworthiness directive requires removal from service of Michelin tyre Part Number 028-520-1 (22x5.75-12/10PR) bearing the listed serial numbers. It affects aircraft operators using those tyres (explicitly noting Cessna Model 650 among others) and matters because two tyre ruptures were attributed to crown separations from misplaced rubber; the listed tyres must be removed prior to further flight after 30 November 1995."}},"importantCases":[],"_links":{"self":"/api/acts/ad-whe-5-michelin-aircraft-tyres","history":"/api/acts/ad-whe-5-michelin-aircraft-tyres/history","analysis":"/api/acts/ad-whe-5-michelin-aircraft-tyres/analysis","conflicts":"/api/acts/ad-whe-5-michelin-aircraft-tyres/conflicts","importantCases":"/api/acts/ad-whe-5-michelin-aircraft-tyres/important-cases","documents":"/api/acts/ad-whe-5-michelin-aircraft-tyres/documents"}}