As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AND RIGHT DUCT PRESSURE WAS OSCILLATING BETWEEN 25 TO 45 PSI FROM 1000 TO 10000 FEET DURING CLIMBOUT. INSPECTED AND LEAK CHECKED BOTH LEFT AND RIGHT AC SYSTEMS. FOUND AIR LEAK BETWEEN RIGHT PACK HEATER AND CONDENSER, REPLACED PACKING PER AMM 21-51-07, BOTH OPS AND LEAK CHECKS OK