TC reported after changing ends, found agap in middle of the floor of gangway between Rear M1 and R ear M2 car. Staff (PNR) checked and confirmed presence of ga p in the middle gangway between the 2 mentioned cars. Staff ~~~~~ Fault confirmed in depot. Cheked and found 2534 #1 end footplate sunken due to pin broken. Replaced and function test ok. N.ATEH.A.M/08.10.22 ------------------