What was found
NR 2 CSD DRIVE LIGHT ILLUMINATED WHILE AT GATE AND NR 1 CSD DRIVE LIGHT NOT ILLUMINATED. CONFIRMED NR 1 ENGINE DRIVE LIGHT DOES NOT ILLUMINATE WITH ENGINE OFF. LIGHT DOES PRESS TO TEST. CHARGE PRESSURE SWITCH IN IDG IS READING OPEN THROUGH PINS 5/6 OF DP1206, SHOULD BE CLOSED. VERFIED USING SRM 24-11-11 AND READING NR 2 IDG SWITCH STATUS, ITS CLOSED AS SHOULD BE. REMOVED NR 1 IDG, INSTALLED SERVICEABLE IDG, OPS AND LEAK CHECKED GOOD REF MM 24-11-11, PB401.