An All Nippon Airways Co. unit was searched Wednesday, the same day that a pilot with a Japan Airlines Co. unit was found to have consumed alcohol over the company's limit, amid a growing scandal over drinking by Japanese airline pilots.
The on-site inspection of ANA Wings Co. was conducted just a day after the transport ministry began a three-day inspection of JAL.
Authorities are also expected to search Skymark Airlines Inc. in the near future.