INTERMEDIATE OVERHAULING ( IOH ) KIT FOR SINGLE BOTTLE VCB OF M/ S AAL TYPE VCBA 25. 10Tr MANUFACTURED AFTER DEC 2016 ONWARD WITH BACHOFEN MAKE PRESSURE REGULATOR. IOH KIT NO. 4300007100/ 62B AS PER CLW/ CRJ LETTER NO. ELDD/ 3229 ( VCB ) DATED 21. 04. 2023.