As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK PRIMARY AND SECONDARY HEAT EXCHANGERS DEFECTIVE. ACFT GROUNDED. REMOVED AND REPLACED THE RT PACK PRIMARY AND SECONDARY HEAT EXCHANGERS IAW AMM 21-51-03-000-805T-002, & AMM 21-51-03-400-804-002. REMOVED AND REPLACED THE RT ACM IAW AMM 21-51-04-000-802-002 & 21-51-04-400-802-002. THE RAM AIR PRIMARY DIFFUSER ASSEMBLY FAN BYPASS CHECK VALVE DOOR WAS FOUND MISSING & WAS REPLACED. RIGHT A/C PACK LEAK AND OPS CHECKED GOOD IAW AMM 21-51-04-400-802-002, STEP 3I.