As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
77WC PART 135 FLIGHT. ORIGINAL ROUTE WAS KBJC – KSNA. AFTER DEPARTING KBJC DURING CRUISE THE CREW LOST THE LEFT HAND FLOWPACK/ ENVIRONMENTAL BLEED SYSTEM, EXPERIENCING A CABIN RATE CLIMB AND DROP IN CABIN PRESSURIZATION. CREW DESCENDED AND LANDED SAFELY IN KGJT. WE VERIFIED THE INOPERATIVE PORTION OF THE SYSTEM AND CONTINUED OPS UNDER OPEN MEL TO KSNA.