What was found
NR 4 MAIN TANK INTERNAL PART CLIP CRACKED STA XRS 172.000, S-74, REF ACCESS DOOR 505D. REMOVED AND REPLACED CRACKED CLIP ON NR 4 MAIN TANK INTERNAL PART STA XRS 172.000, S-74 (ACCESS DOOR 505D) IAW SRM 51-1-20D. FOR LEAK CHECK SEE NR 1482.