TC report MR above 10 bars intermittently with loud discharge sound since OTP WB.ver train depart MR overcharge above 10 bars. ~~~~~ Found micromesh filter element degraded/powdery, and air filter dirty. Replaced micromesh filter element and air filter. Function check ok - cut in 8.4bar, cut-out 10.35 bar. Safety valve not blowing when compressor running.  N.A KRISH //05.10.21 --------------------