Between July 16 and 18, 2025, the Shikoku Transport Bureau conducted a safety audit of Shikoku Cable Corporation (法人番号4470001000114) headquartered in Takamatsu City, Kagawa Prefecture. The audit revealed that the maintenance regulations and inspection record books for the Tairyuji Ropeway contained some entries with incorrect or unnecessary information, and that inspection results were not properly recorded in some cases. As a result, the company was instructed to review and correct the maintenance regulations and inspection records to ensure accuracy and proper documentation of inspection outcomes. The company is required to report the corrective measures taken by September 19, 2025, in accordance with the provisions of the Ministerial Ordinance on Technical Standards for Ropeway Facilities.

On July 21-22, 2022, an safety audit was conducted on Shikoku Cable Corporation. The audit revealed the following issues: (1) discrepancies between the latest construction plans submitted to the Shikoku Transport Bureau and the actual cableway facilities, requiring prompt corrective actions and proper management of plan-facility consistency; (2) deficiencies in maintenance regulations, necessitating immediate revision and proper regulation management; (3) incomplete records of inspection and examination results, requiring correction of inspection records and thorough documentation of inspections based on maintenance regulations. The company is instructed to implement corrective measures and report by September 22, 2022.