As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REJECTED TAKE OFF, AT 100KTS DUE TO AN N1 EXCEEDING LIMITS. THE AIRCRAFT WAS GROUNDED. ACCOMPLISHED DFDR DOWNLOAD IAW AMM 71-00-00-860-010-B, ROTOR SPEED LIMITS FOR TRANSIENT OVER SPEED WAS LESS THAN FIVE SECONDS. NO MAINTENANCE PROCEDURE NECESSARY. DOWNLOAD RESULTS 100.03 FOR ONE SECOND.