As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CAB ZONE TEMP ILLUMINATEDS ON RECALL. GROUNDED - YES. VERIFIED FAULT, ACCOMP BITE TEST #1 CONTLR NO FAULTS #2 CONTLR SHOWS FLT DECK TRIM VALVE FAULT. REF B737-900 AMM 21-61-20-860-004. ACCOMPLISHED PACK/ZONE TEMP BITE TEST REF AMM 21-61-00-700-806-002. BITE TEST PASS AND SHOWS NO FAULTS FOUND ON BOTH CONTROLLERS. VERIFIED CONT CABIN ZONE TEMP LIGHT NOT ILLUMINATED, AND DOES NOT ILLUMINATE AFTER RECALL.