WE HAVE EXPERIENCED 5 SIMILAR STEERING GEAR BOX FAILURES ON OUR 2001 FREIGHTLINER COLUMBIA TRUCKS. IN EACH FAILURE THE TRUCK WOULD NOT TURN. NO ACCIDENTS OCCURRED IN FAILURES #2 - #5.ON 12/20/01 OUR 2ND FAILURE, [XXX] AT 170780 MILES, UNIT 3657.ON 04/01/02 OUR 3RD FAILURE, [XXX] AT 238661 MILES, UNIT 3725. ON 6-11-02 OUR 4TH & 5TH FAILURES, [XXX] AT 195001 MILES, UNIT 3747 AND #5 WAS [XXX] AT 305185 MILES UNIT 3634.*AK INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR