What was found
AFTER TAKEOFF, CREW REPORTED STRONG FUMES IN FLIGHT DECK AND CABIN. FLIGHT RETURNED TO FIELD AT CLT. MAINTENANCE ACCOMPLISHED J/C 26L00021001 (CABIN ODO T/S). DETERMINED ODOR FROM APU DUE TO HYDRAULIC INGESTION FROM LEFT BRAKE MANIFOLD LEAKING. REMOVED AND REPLACED LEFT MAIN GEAR BRAKE NORMAL MANIFOLD ASSEMBLY PER AMM TASK 32-42-16-401. LEAK CHECKS OK. ACCOMPLISHED J/C'S 26L00021005 FOR LEFT AND RIGHT ENGINES. BOROSCOPES ARE GOOD. ACCOMPLISHED J/C 26L00021002 (APU SMELL) DRAIN OIL FROM APU LEVEL AND ACCOMPLISHED APU LOAD COMPRESSOR WASH. PERFORMED J/C 26L00021004 DECONTAMINATION OF THE ECS. GROUND CHECKS GOOD. NO ODORS. REPLACED LEFT AND RIGHT HEPA FILTERS. ACCOMPLISHED SATISFACTORY TEST FLIGHT.