As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES DURING RECALL. IT DOES RESET. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801. FOUND NO CURRENT FAULTS. NO FLIGHT FAULT HISTORY. PERFORMED SUPPLY AIR CONDITIONING WITH L/H PACK AND NO FAULTS FOUND PER B737-900 AMM 21-00-00-800-803. PERFORMED FIM 21-62 TASK 801 AND FOUND NO FAULTS. COULD NOT DUPLICATE PROBLEM.