What was found
ON LANDING WITH ALL ENGINES IN REVERSE THRUST, NR 1 ENGINE OVERTEMPED REACHING MAX EGT 980 CELSIUS. THE NR 1 ENGINE WAS SHUTDOWN WITH REVERSER UNLOCK LIGHT STILL ILLUMINATED. MAINTENANCE INSPECTED INLET AND EXHAUST, RAN ENGINE AT IDLE, AND CYCLED REVERSER SEVERAL TIMES, ALL CHECKED OK. ALSO, CHECKED RABS SYSTEM PER MM 75-30-00, CHECKED GOOD. ENGINE TEMPERATURE WITHIN LIMITS PER MM 72-00-00, PG 227.