What was found
GEN 1 FAULTED ON TAKEOFF IDG NR 1 WAS INTERMITTENT. VERIFIED IDG OIL COMING FROM NR 1 ENG DRAIN MANIFOLD ASSY REF TSM 24-11-00 FIG 105. OPEN REQ C/B FOR NR 1 IDG CHANGE, OPENED NR 1 ENGINE COWLINGS GAIN ACCESS AND DEPRESSED IDG VIA OVERFLOW REF TO AMM 24-11-11-401 PROCEDURE. REMOVED AND REPLACED NR 1 IDG AS PER M/M 24-11-11-4-01. OPS CK NR 1 IDG AS PER JRH VOLTS FREQS NORMAL. NO LEAKS NOTED AFTER ENG RUN NR 1 IDG SERVICED TO FULL OK TO CONTINUE.