As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN-BACK. WHILE CLIMBING TO 20,000 FEET OUT OF BOGOTA, LOST CABIN PRESSURE AND WAS UNABLE TO CONTROL CABIN CLIMB. RETURNED TO BOGOTA. REINSTALLED AND SAFETIED CLAMP TO AIR DISTRIBUTION DUCT IN RIGHT NOSE WHEELWELL TUNNEL. SYSTEM OPS CHECKED NORMAL.