As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT ENGINE REVERSER UNLOCK LIGHT INDICATION ILLUMINATED DURING TAKEOFF. TAKEOFF WAS ABORTED AT 101 KNOTS. AIRCRAFT RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE PLACED THE LEFT ENGINE REVERSER ON MEL 78-1 AND COMPLIED WITH DISPATCH DEVIATION GUIDE. INSTALLED PLACARD NR 701524.