As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED FAMV LT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED OPEN OR CLOSED OR LT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE. ORD 71005:04 10034, 882-26-1 ON ARR FOUND NO POSITION IND FOR THE LT FAMV ON THE MAINT PAGE WITH MSG 36-10190, 36-10531. CLEANED ELECT PLUG ON FAMV & HPFAC, NO HELP. RVDT FOR FAMV AND CIRCUIT CHECKED OK IAW FIM 36-11 T811. REPLACED NR 1 ENGINE ASCPC IAW MM. TESTED IN MAT SYS PASSED TEST.