As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE GOT STRONG BURNING SMELL FOR 2 TO 3 MIN FOLLOWED BY A LOSS OF CONTROL OF THE COCKPIT PAC TEMP. TEMP WENT HOT AND COULD NOT BE REDUCED IN MANUAL MODE OR AUTO, 35 DEGREES CHECK GOOD 43.5K OHMS. CLEANED RT COALESCER IAW CE750 MM CHAPTER 12-10-01-160. FOUND METAL IN COALESCER. REMOVED ACM IAW CE750 MM CHAPTER 21-51-00. INSTALLED ACM IAW 21-51-00 750 MM. INSTALLED DUCTING 2-10. OPS CHECK GOOD. LK CHECK GOOD. OK TO INSTALL DUCTING.