What was found
AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB, FWD CABIN DUCT TEMP REACHED 140 DEGREES C. CONT CAB & FWD CABIN, ILLUMINATED, UNABLE TO CONTROL. R & R TRIM AIR MODULATION FWD VLV V144 IAW AMM 21-61-21, ZONE TEMP CONTROLLER M1443 IAW AMM 21-61-17 & AIR CONDITIONING ACCESSORY UNIT M324 IAW AMM 21-51-02. OPERATIONAL CHECKED GOOD. SEE ALSO AALA 20160403001 & AALA 20160404005.