What was found
MAIN CARGO DOOR B LIGHT CAME ON AT 16,000 FT, DURING CLIMB. FLAPS WERE RETRACTED ALREADY. NO LOSS OF PRESSURIZATION. LIGHT WENT OUT AT 7000 FT DID NOT COME BACK ON. FOUND MAIN CARGO DOOR 'B' SWITCH OUT OF ADJUSTMENT ('A' DOOR LIGHT CAME ON BEFORE 'B' LIGHT) ADJUSTED 'B' SWITCH SO THAT BOTH 'A' AND 'B' COME ON AT THE SAME TIME AND ARE WITHIN SPECIFIED LIMITS PER NASI 727-MM14 SUPPLEMENT MANUAL. A/C OK FOR SERVICE. RII