As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 133 - EN ROUTE JFK-LAX - JUST AFTER TAKEOFF, LEFT ENGNE REVERSER UNLOCK LIGHT ILLUMINATED. NO ADVERSE YAW NOTED. RETURNED JFK AND LANDED WITHOUT INCIDENT. REPLACED MICRO SWITCH PACK TO LEFT ENGINE REVERSER PER MM. ALL OPERATIONAL CHECKS NORMAL. (M)