What was found
SHORTLY AFTER BOTH ENGINE START, SMOKE AND FUMES APPEARED. DONNED OXYGEN COMPLETED EVAC CHECKLIST. R1 DOOR/SLIDE JAMMED WOULD NOT OPEN, L1 OPENED NORMALLY, SLIDE DEPLOYED. (SLIDE ADDRESSED IN ANOTHER SDR) T/S SMOKE/FUMES TO NR 1 PACK, CONTAMINATION FROM AIR CHECK VALVE TO HYD RES HEAD PRESS SYS. REPAIRED BY REPLACING ALL CK VALVES AND CLEANING AIR LINES AND CLEANED PACK DUCKS. THE DISCOVERED DAMAGE/CRACK IN DUCTING TO BE REPAIRED IN B-CK.