What was found
EICAS MSG RT PACK TEMP DISPLAYED R PACK INOP LGT ILLUM. LT EXSITING WHEN STBY SELECTED. OPERATED NORMAL IN STBY. REPLACED RT PACK TEMP CONTROL VALVE IAW MM 21-51-12. (K)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EICAS MSG RT PACK TEMP DISPLAYED R PACK INOP LGT ILLUM. LT EXSITING WHEN STBY SELECTED. OPERATED NORMAL IN STBY. REPLACED RT PACK TEMP CONTROL VALVE IAW MM 21-51-12. (K)