Company installing Metro cellphone service facing financial trouble

A company that is adding wireless service in Metro’s underground rail system is in dire financial straits as the deadline looms to complete the project.

Powerwave Technologies Inc. is helping Metro fulfill a pledge to Congress to install more robust wireless service in all of the transit system’s underground network by Oct. 16. But in a Securities and Exchange Commission filing made earlier this month, the company based in Santa Ana, Calif., said it has experienced “significant recurring net losses and operating cash flow deficits” for the past year.