What was found
NR 1 PACK OVERHEAT, ASSOCIATED SMELL AND ODD SOUND. FOUND LEAK AT THE LH DTCV FLEXIBLE DUCTS BETWEEN THE VALVE AND Y-DUCT. REMOVED AND REPLACED DUCTS AND CLAMPS IAW EMB 140 AMM 21-60-01 AND ETN-EM-21-056. NO FIX. SUSPECT SIEZED ACM. MEL REMAINS OPEN. M-PROCEDURES COMPLIED WITH. REMOVED AND REPLACED MULTIPLE ITEMS RELATED TO L/H PACK SYSTEM. REMOVED AND REPLACED THE LEFT AIR CONDITIONING PACK OVERTEMPERATURE SWITCH IAW AMM 21-51-08. OPS CHECK DUE. PERFORMED AN OPERATIONAL CHECK OF THE L/H AIR CONDITIONAL SYSTEM IAW 21-51-00. OVERTEMPERATURE SWITCH WORK GOOD. INSTALLED LEFT PACK CONDENSER/MIXER IAW AMM 21-51-04. ACCOMPLISHED LEAK CHECK OF LEFT PACK CONDENSER/MIXER REF EO NUMBER EM-2100-051 PART A. LEAK CHECK GOOD. REPLACED LEFT PACK HEAT EXCHANGER IAW AMM 21-51-02. ACCOMPLISHED LEAK CHECK OF LEFT PACK HEAT EXCHANGER REF TO EO NUMBER EM-2100-051 PART A. LEAK CHECK GOOD. INSTALLED LEFT PACK Y DUCT IAW AMM 36-11-09. ACCOMPLISHED LEACK CHECK OF LEFT PACK Y DUCT REF EO NUMBER EM-2100-051 PART A LEAK CHECK WAS GOOD. INSTALLED LH GRATE ASSY IAW AMM 21-51-02. ACCOMPLISHED LEAK CHECK OF LH PACK EXHAUST GRATE REF EO NUMBER EM-2100-051 PART A. LEAK CHECKED GOOD. OPERATIONAL CHECKED GOOD IAW AMM 21-51-00.