As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT LEVEL OFF FL 380 NOTICED LEFT ENG VALVE CLOSED LIGHT ILLUM DIM. NO OTHER DISCREPANCIES NOTED. ENG OPERATING 4.0 HARD TO SEA ON LTS TEST OR PRESS TO TEST ANY BRIGHTER ILLUM LOOKED UP IMMEDIATELY AFTER SENDING ACARS TO MAINT CTRL AND NOTED LIGHT EXTINGUISHED. PERFORMED FIM TASK 73 06 00 810 805 F00 PARA A E.8, OPS CHECK NORMAL NO DEFECTS NOTED. INTERROGATED FMC ENG NR 1 NO FAULTS INDICATED, OK FOR SERVICE.