As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESENDING THROUGH 22K NOTICED IDG DISCONNECTED AND THEN OIL PRESSURE IN THE RED. N1 AND N2 FAIL BELOW IDLE AND FF WAS LESS THAN 600LBS. TURNED FUEL CUTOFF SWITCH TO OFF. ENGINE SHOWED POSITIVE OIL PRESS THROUGHOUT THE REST OF THE DESCENTAND LANDING. EMERGENCY WAS DECLARED. R & R LT ENG PER TRANS 1T148 AD. ETOPS CATEGORY 'C': UNCOMMANDED PWR CHANGES,SURGES,OR STALLS