As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCOND - ZONE TEMP CAUTION. GROUNDED - YES. REMOVED AND REPLACED ZONE TRIM AIR MODULATING VALVE POSITION. R/H FPX REF B737-900 AMM 21-61-21/401. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST AMM TASK 21-61-00-700-806-002. OPS CHECK GOOD.