EMU 551/552 AIR LEAK TEST FAIL (DURING D ~~~~~ FOUND 2552 BOGIE  NO 1 A SIDE LEVELING VALVE ARM DISLODGE.REFIX THE ARM AND ADJUSTED CAR HEIGHT,AIR SPRING HEIGHT AND VERTICAL STOP BOLT HEIGHT.FUNCTION TEST OK.LEAK RATE 0.5 BAR FOR 5 MIN.LOW KC/JIMMY/TEH 30.10.2022