What was found
MAIN CARGO DOOR LIGHT CAME ON. FOUND EXTERNAL UNLOCKING HANDLE LOOSE WITH DOOR CLOSED AND LOCKED AND BARBER POLE IN LOCK POSTION. MAIN CARGO DOOR ANNUNCIATOR LIGHT INOP. VERIFY MAIN CARGO DOOR IS CLOSED PRIOR TO EACH BLOCK OUT. REMOVED AND REPLACED LEVER AND ADJUSTED IND PER 52-34-9 PG 501. ADJUST 3 PROX SWITCH ON WALKING BEAM PER AMM 52-34-39 PG 401. REMOVED AND REPLACED RELAYS R9105 & R9104 PER WDM 52-31-01 PG 1 SH 2 FOR PRECAUTIONARY. SYS OPS CK GOOD.