What was found
ANTI ICE DUCT WARNING ON CLIMB OUT OF DEN. QHR CLEARED THE MSG AND WE DIDN€™T NEED TO USE THE ANTI ICE AFTER THAT. (FLIGHT 5366) INTERROGATED MDC AND FOUND B1 CODES 007309 (L WING LOOP B) AND 007180 (L BLEED LOOP A). TROUBLESHOT L BLEED LOOP A PER FIM 36-21-01-810-801. USING BREAKOUT BOX TESTED RESISTANCE TO L BLEED LOOP A AND RECORDED RESISTANCE SLIGHTLY HIGHER THAN NOMINAL VALUE BUT NOT TWICE NOMINAL VALUE. TAPPED ON ALL ASSOCIATED CONNECTIONS AND MOVED BLEED LOOPS AROUND IN ORDER TO TRY TO SEE A JUMP IN VALUES. NO JUMP IN RESISTANCE VALUES NOTED AT THIS TIME. HOWEVER, DURING INSPECTION OF CONNECTIONS NOTICED THAT CONNECTOR MT137 APPEARED EXCESSIVELY BACKED OFF AND ONCE SAFETY CABLE WAS CUT COULD BE LOOSENED BY HAND. CLEANED CONNECTION AND REPLACED CERAMIC INSERT AT CONNECTION POINT MT137 PER AMM 36-21-00 AND RECONNECTED AND PROPERLY TORQUED CONNECTION PER AMM 36-21-00. UPON INITIAL ARRIVAL TO AC DUCT MON FAULT WAS POSTED HARD FAULTED. UPON POWERING UP AC AFTER WORK WAS ACCOMPLISHED, DUCT MON FAULT MESSAGE NO LONGER POSTED. PER