As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/CRW - FLT 6375 - DURING CLIMB, CREW EXPERIENCED BOTH ENGINE'S TORQUE DROP TO 40 PERCENT FOR APPROXIMATELY 3-4 SECONDS. THE TORQUE THEN RETURNED TO NORMAL WITH NO OTHER INDICATIONS. AIRCRAFT RETURNED TO IAD WHERE MAINTENANCE INSPECTED AND PERFORMED ENGINE RUNS. NO DISCREPANCY COULD BE FOUND. AIRCRAFT WAS RELEASED FOR RETURN TO SERVICE. (X)