What was found
PERFORMING OPS CHECK OF MANUAL MASK RELEASE FOUND MULTIPLE MASKS FAIL DROP. WHEN INITIATING DROP TEST OF MASKS FOUND BREAKER HA06 ON THE OVERHEAD C/B PANEL POPPED WHEN PUSHING THE MAN MASK BUTTON. SUSPECT WIRES SHORTING. CHECKED WIRES END TO END, AND END TO GROUND FROM PIN 2 OF C/B HA06 TO C1 OF RELAY 10 WB. WIRE CHECKED GOOD. FOUND SHORT TO GROUND WHEN CHECKING PIN C2 ON RECEPTACLE OF RELAY 10WB. DISCONNECTED CONNECTOR 2405VC & STILL HAD SHORT TO GROUND COMING FROM PIN C2 ON RELAY RECEPTACLE 10WB. RECONNECTED CONNECTOR 2405VC & DISCONNECTED CONNECTOR 1184VC. SHORT TO GROUND GONE FROM C2. COULD NOT FIND A SHORT TO GROUND ON PIN 3 OF CONNECTOR 1184VCA. SUSPECT CONNECTOR OR RECEPTACLE. IAW AWM 35-23-1. REF AWM 35-23-01 THRU 35-23-07. FOUND DEAD SHORT AT O2 BOX SOLENOID 33WR IN AFT CABIN. SEAT ROWS 11L & 11R+32L WILL NOT RELATCH. RELATCHED 11L, 11R, & 32L, REPLACED O2 BOX AT AFT GALLEY IAW AMM 25-25-43. OPS CHKD GOOD. ALL MASK PANELS OPEN & NO BREAKERS POPPED ON DROP TEST. (LP: 1350472)