As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG COWL VALVE OPEN LIGHT ON BRIGHT. GROUNDED - YES. ACCOMPLISHED ENG COWL TAI VALVE TEST REF AMM 30-21-11. RAN NR 1 ENG VERIFIED COWL LIGHT & TAI INDICATION ON PFD NORMAL. GROUND VERIFICATION SUCCESSFUL NR 1 ENG COWL LT NOT ILLUMINATED IN OFF POSITION.