As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START ON RECALL HAD A PACK LIGHT ON LEFT SIDE AND CAUTION LIGHT. BOTH LIGHTS WENT OUT ON RESET. AT TOP OF DECENT UPON PRESSING THE RECALL LIGHT THE LEFT PACK SHOWED FULLY OPERATIONAL INDICATION WITH ZERO FAULT INDICATION. GROUNDED - YES. LEFT HAND PACK PRIMARY TEMP CONTROL INOP. PERFORMED PACK ZONE TEMP CONTROLLER BITE TEST FOUND SRADA INLET LIGHT, RESET FAULT LIGHT REF 737-900 AMM 21-61-00.