At least 46 elevators across Japan operated by Nippon Otis Elevator Co. have had problems with their operation, such as fractures in metal cables, a Kyodo News survey showed Sunday.
Nippon Otis launched emergency inspections of its 51,500 elevators following trouble with an elevator in the Roppongi Hills Mori Tower on April 4, and the outcome, except for those in Tokyo and Osaka Prefecture, has been reported to the Land, Infrastructure and Transport Ministry.
The ministry will announce the overall results by the end of the week after receiving the Tokyo and Osaka reports, officials said.
Because the problematic elevators do not meet Japanese Industrial Standards, Nippon Otis has taken various safety measures, including replacement of cables, company officials said.