As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATL-PHL, DIVERTED TO CLT ACCOUNT BLEED ISSUE. EMERGENCY DECLARED. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AIRCRAFT FROM SERVICE. REPLACED LEFT ENG PRECOOLER AND PRECOOLER EXHAUST DUCT SEAL IAW AMM 36-11-08. PERFORMED SATISFACTORY OPERATIONAL TEST OF ENGINE PNEUMATIC BLEED SYSTEM PER AMM 36-11-00-710-801-A.