What was found
WHEN FUELING - AT THE REFILL PANEL, THE RESET BUTTON MUST BE HELD. - ITEM SHORT SIGNED BY FLIGHT MX - T/S PER AMM 28-55-00, FOUND ALL INDICATING POINTING TO LEFT TANK AUTO SW ASSY. REMOVED LEFT WING SURGE TANK ACCESS PANEL 542AB; IAW; REF B767 AMM 28-11-03, REMOVED AND REPLACED LT TANK FUEL LEVEL SENSOR UNIT IAW REF B767; AMM 28-21-03; OK TO CLOSE ACCESS PANEL # 542AB CLOSED LT/WING SURGE TANK ACCESS PANEL # 542AB IAW REF B767 AMM 28-11-03 3519177/KR42314M ;5/3/22 ERTS PENDING FOR OPS LEAK CHECK. CHECK LEVEL FUEL SENSOR OK AMM 28-21-04 PERFORMED LEAK CHECK NO LEAKS