As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4507 CRW-PIT. A/C EXPERIENCED SEVERE NOSEWHEEL SHIMMY AT ABOUT 40-45 KNOTS DURING INITIAL TAKE-OFF ROLL. CREW ABORTED TAKE-OFF AND RETURNED TO GATE. CREW DID NOT EXPERIENCE ANY SHIMMY DURING NORMAL TAXIING. A/C TAKEN OUT OF SERVICE 4-2-03 AT1519.