During PM found #1539 Bogie 1 A/S Levelling valve heaving air leak. To
rectify. ~~~~~ During PM found #1539 Bogie 1 A/S Levell   Changed out 1539 bogie #1 A side leveling valve.Function check OK. Old-1039276   New-1034248 N/O:2538014 Raised Done by Fazil/Syahmi/Henry.1/11/23.