As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF AND INITIAL CLIMB WITH TAKEOFF POWER, HOT AIR CONDITIONING PACK ODOR WITH HAZE FILLED CABIN AND COCKPIT. HAZE AND ODOR DISSIPATED A FEW MINUTES AFTER CLIMB POWER SELECTED AND REST OF FLIGHT NORMAL. APU WAS OFF. ACCOMPLISHED REPLACEMENT OF LT AND RT AIR CONDITIONING PRESSURE REGULATING SHUT OFF VALVE. PERFORMED PACK BURN. SYSTEM GROUND CHECKED NORMAL OPERATION.