What was found
APPROXIMATELY 25 MINUTES INTO FLIGHT AT FL 290, FLIGHT CREW HAD A LOSS OF NR 1 ENG OIL PRESS. CREW PROCEEDED TO SHUT DOWN NR 1 ENG & DIVERTED. FLIGHT LANDED OVERWEIGHT, 181,500LBS. AN EMER WAS DECLARED & EMER EQUIPMENT DID ROLL IN. THE CABIN WAS PREPPED FOR AN EMER & THE LANDING WAS NORMAL. PAX DID NOT BRACE. REPLACED THE NR 1 ENG, ACCOMPLISHED OPERATIONAL & LEAK CHECKS IAW TASK CARD 26L40071001.