What was found
DEPARTED UNDER NORMAL CONDITIONS. LEVELING OFF AT 28,000 FEET, CRUISE ALTITUDE, LOSS OF LT ENGINE OIL QUANTITY AND LOW OIL PRESSURE WAS OBSERVED BY THE FLIGHT CREW. THE NR 1 ENG WAS SHUT DOWN. FLIGHT WAS DIVERTED AND LANDED WITH NO FURTHER INCIDENTS. DURING POST FLIGHT INSP AND IN PROCESS OF TROUBLESHOOTING CAUSE OF THE NR 1 ENGINES LOSS OF OIL QUANTITY AND LOW OIL PRESSURE MAINTENANCE FOUND THE ACCESSORY GEAR BOX CHIP DETECTOR LYING IN THE BOTTOM OF THE NR 1 ENGINE LOWER COWLING. A CLOSE INSPECTION OF THE CHIP DETECTOR HOUSING REVEALED EXCESSIVE WEAR WITH PART OF THE HOUSING RETAINER BROKEN AWAY. THE CHIP DETECTOR ASSEMBLY WAS REPLACED WITH A NEW ASSEMBLY IAW MM. AIRCRAFT WAS RETURNED TO SERVICE.