White said the problem will have `` a pretty major impact on operations '' and the cancellations will have a ripple effect . NEW : Air traffic controllers ' group says problem will cause delays throughout day . Comment: : FAA says officials working to pinpoint cause of computer system glitch . `` I 'm frustrated . I have to be somewhere , '' delayed passenger says . Air safety not compromised , FAA says .
NEW : Air traffic controllers ' group says problem will cause delays throughout day . Comment: : FAA says officials working to pinpoint cause of computer system glitch . `` I 'm frustrated . I have to be somewhere , '' delayed passenger says . Air safety not compromised , FAA says .