On August,31 2014 13:40 At WWI operator heard the sound, fume and strong NH3 smell at NH3 sphere tank. Shift Supervisor informed BM in order to stopped NH3 liquid receiving to RD-210.
Operation team came to checked the circumstance of NH3 sphere tank by using SCBA, the OPT found the temporary hose (N2 hose) had used for purging the modified line (MOC) at AE-135A to RD-210 so, it was broken and NH3 gas leakage to the ATM. At14:00 SV & OPT isolated valve and stopped NH3 leakage was finished and checked the NH3 smell so, none detected.