What was found
MAIN CARGO DOOR LIGHT CAME ON PASSING 15,000 FT AT 310 KNOTS. REPEAT WRITE-UP, APPROX CABIN PRESSURE 4.5 PSI. CHECKLIST ACCOMPLISHED, RETURNED TO AUS. OPENED MAIN CARGO DOOR, INSPECTED ALL SWITCHES ON MAIN CARGO DOOR, LATCH SWITCHES, LOCK TUBE SWITCHES, FOUND ACCESS PANEL ON LOWER AFT MAIN CARGO DOOR BENT IN AND MAKING CONTACT WITH THE TARGETS ON THE AFT TWO LATCH SWITCHES. STRAIGHTENED ACCESS PANEL AND FOUND BOTH TARGETS ON AFT TWO SWITCHES BENT AND OUT OF ADJUSTMENT. ADJUSTED BOTH TARGETS AND SWITCHES PER 727-100 MM CHAPTER 52-34-009-5. CLOSED CARGO DOOR, DOOR WARNING SYSTEM OPS CHECK'S NORMAL. OK FOR SERVICE.