As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD ENTRY DOOR LIGHT ILLUMINATED IN-FLIGHT, DEPRESSURIZED AND DESCENT TO 5000 FEET MSL. A/C WAS DEPRESSURIZED FOR REMAINDER OF FLIGHT (15 MINUTES) AT 5000 FEET. REMOVED DOOR LINER AND ADJUSTED UPPER AND LOWER LATCH TORQUE TUBE CONTROL RODS. OPS CHECK NORMAL. REINSTALLED LINER. MM REF 52-11-01 PAGES 514 - 516 AND 52-11-61.