3704 CBTC TACHO 1 HOUSING 04 CBTC TACHO 1 HOUSING THREAD FAULTY. ED TO CHANGE TO NEW TACHO HOUSING. ~~~~~ 3704 CBTC TACHO 1 HOUSING     #3704 axle 2 B/S CBTC Tacho mounting screw cross thread(6 O'clock position and 9 O'clock position)Retap 6 O'clock position thread,satis.9 O'clock position thread retap to no avail.S & C raised notification to RSW to assist to rectify.