What was found
LHR - DURING OVERNIGHT MAINTENANCE, FIRST CLASS NR 2 OVEN SMOKED. CLEANED FIRST CLASS OVEN. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LHR - DURING OVERNIGHT MAINTENANCE, FIRST CLASS NR 2 OVEN SMOKED. CLEANED FIRST CLASS OVEN. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)