As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED ON RECALL IN FLIGHT. GROUNDED - YES. ACCOMPLISHED PTC BITE PROCEDURE B737-900 FIM 21-62 TASK 801, #1 CONTROLLER FAULTED SRADA EXIT, RESET CONTROLLER FAULT EXTINGUISHED, RAN BOTH PACKS FOR SEVERAL MINUTES, RECALL TEST PASSED NO FAULT NOTED B737-900 AMM 21-00-00.