What was found
PACK LIGHT COMES ON DURING FLT, LT PACK LIGHT CLB THRU FL200 BURN ODOR FOLLOWED BY PACK LIGHT ON. QRH TRIP R ESET UNSUCCESSFUL. FAULT HISTORY SHOWS MAINTENANCE MESS. 21-55100 (LT PACK OVERHEAT SHUTDOWN IN FLT ) FIM 21-51 TASK 819 ALSO MAINTENANCE MESGE. 21-30301. LOW AIR SUPPLY OR HIGH FUSELAGE LEAKAGE FIM 21-31 TASK 839 , THIS FAULT OBSERVED BY THE CPC-2 AFTER EXPERIENCING PACK SHUTDOWN . REQUIRES ACCOMP OF FIM TASKS ASSOCIATED WITH FAULTS & FOR BURN ODOR REPORTED BY PILOTS REQUIRES FIM 21-00 TASK 830 . RAN LT PACK SEVERAL TIMES- OPS WAS NORMAL. DID NOT TRIP. LT RAM AIR INLET DOOR ACTUATOR FOUND TO BE OPS INTERMITTENTLY. ACTUATOR REPLACED ON NON ROUTINE 3241839. AS FOR THE BURN ODOR FOUND B SYS HYD TO BE OVER SERVICED. ADJUSTED HYD FLUID LEVEL. RAN PACKS SEVERAL MINS & ODOR DISCIPATED. ALL OPS CHKD NORMAL. IAW AMM 21-00-00-800-803, & 12-12-00-610-801. LT RAM AIR DOOR ACT R & R . HYD SYS B FLUID LEVEL WAS ADJUSTED FROM OVERFILLED TO PROPER LEVEL. PACKS WERE RAN SEVERAL MINUTES WITHOUT TRIPS. ODOR DIMINISHED WITH EVERY PACK RUN. ALL OPS CHKD NORMAL. IAW AMM 21-00-00-800-803 & 12-12-00-610-801.