What was found
FOUND DAMAGED CAPTS 02 MASK DURING REACTIVATION OF SYSTEM. MASK STRAP IS LEAKING BEHIND HEAD WHEN PRESSURIZED. SPT-7000581. REMOVED AND REPLACED CAPTS O2 MASK/REGULATOR WITH SERVICEABLE MASK/REGULATOR PN MC10-25-104 SN 52474, IAW B757 AMM 35-11-51-004-0 27 AND 35-11-51-404-034, NO LEAKS AT THIS TIME. DATA WAS TRANSCRI BED FROM 7000581. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1923693 SN OFF 0236 MASK, OXYGEN, C OFF 76-3515-9-9001 0236 ON 99-3512-9-9001 2474.