As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG ANTI ICE COWL VLV SHOWS STUCK IN CLOSED POSITION. VERBAL FROM FLT CREW: WHEN NR 1 ENG TAI SWITCH PLACED TO ON LIGHT CAME ON BRIGHT AND REMAINED IT NEVER TRANSITIONED TO DIM. ALSO HAD AN AMBER TAI LIGHT ON THE CDS DISPLAY ABOVE THE N1 SPEED DISPLAY. RAN NR 1 ENG VERIFIED FAULT. POSITION LIGHT REMAINS BRIGHT WHEN PLACED TO ON. MIG 51A'S INSTALLED ROW A COL 6&7. REPLACED NR 1 ENG COWL TAI VLV LEAK & OPS NORMAL FOR SERVICE.