As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, AT 360FL, ODOR OF SMOKE IN COCKPIT. PERFORMED SMOKE SOURCE IDENTIFICATION CHECKLIST. HAD DIFFICULT TIME CONTROLLING CABIN PRESSURE IN AUTO AT ALT PRESSURE SWING 2000 FT/M UP AND DOWN EVERY 10. TRANSFERRED NR 1 ENG HP REG VALVE TO DMI NR 35677 IAW MEL 36-1-5 SPECIALITY PROCEEDURES C/W PLACARD INSTALLED. REMOVED AND REPLACED NR 1 ENG HIGH STAGE BLEED VALVE SYS LEAK AND OPS CKD GOOD ON GROUND IAW MM 75-21-1 AND JRH 11.1 THIS CLEARS DMI NR35677 PLACARDS REMOVED. ACFT WAS GROUNDED.