As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WOULD NOT PRESSURIZE AFTER DEPARTURE. VENT DOOR LATCH FEELS LIKE THERE IS SOME RESISTANCE PREVENTING IT FROM FULLY CLOSING. GAINED ACCESS AND REMOVED MCD VENT DOOR SOLENOID I/A/W CESSNA 560XL MM CH. 52-10-00. INSTALLED REPLACEMENT VENT DOOR SOLENOID. ADJUSTED SOLENOID. RESTORED ACCESS GAINED. OPS CHECK GOOD. VERIFIED ALL 6 PACK LIGHTS EXTINGUISH AFTER SOLENOID CLOSES VENT DOOR. ALL WORK DONE IAW 560XL MM 52-10-00.