What was found
RIGHT PACK LIGHT ILLUMINATED IN TAXI. EXTINGUISHES WITH MASTER RESET. GROUNDED - YES. REMOVED & REPLACED R. PACK TEMP CONTROL VALVE, REF B737-900 AMM 21-51-10.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT PACK LIGHT ILLUMINATED IN TAXI. EXTINGUISHES WITH MASTER RESET. GROUNDED - YES. REMOVED & REPLACED R. PACK TEMP CONTROL VALVE, REF B737-900 AMM 21-51-10.