As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON WALK AROUND FOUND LEFT PACK EXHAUST DUCT PLENUM DIFFUSER DAMAGED. REQUIRES M&E # 29-2151-3-0064. REMOVED LEFT SIDE HEAT EXCHANGERS AND PLENUM DIFFUSER THRU STEP G(11)(E).REF AMM 21-51-03-000-805-002. REMOVED AND REPLACED LEFT PACK EXHAUST DUCT PLENUM DIFFUSER AND REINSTALLED LH HEAT EXCHANGERS IAW AMM 21-51-03 VERIFIED CDCCL STEPS PRIOR TO INSTALLATION OF HEAT EXCHANGERS