515/516 Air leak test fail during DT. ~~~~~ 515/516 Air leak test fail during DT. #1515 A1 1xtest point leak & Bogie2 Underframe 1xtest point leak #2515 Bogie2 Underframe 1xtest point leak #1516 B1 1xtest point leak & bogie2 underframe 1xtest point leak 2516 B2 1xtest point leak After RSW replaced faulty parking brake,carried out air leak test ,0.5bar/5min (within criteria) Done by Joshua 29/12/20 515/516 Air leak test fail during DT.     Found test point air leak on: #1515-A1,& bogie frame test pt. #2515-Bogie 2 frame test pi.    #1516-B1,& bogie 2 test pt. #2516-test pt. #3515-ACU exhaust port heavy leaking. Also found A1 parking brake leaking. Not.2233206 raise to RSW for parking brake c/o. 0020 raise to follow up. Checked by