What was found
AIRCRAFT WAS NOT GROUNDED: WHILE PERFORMING OPERATIONAL TEST OF EMERGENCY LIGHTS, CIDS 1 EPSU SYS TEST, RECEIVED ERROR DIR1 ACTIVE; CLASS 1; EPSU(12WL)EMER R/; DEU-B(300RHG). MAINTENANCE READJUSTED BATTERY EPSU 12WL EMERGENCY, RIGHT IAW AMM 33-51-38 OPS CK GOOOD.