As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/C BLOCK TURNBACK WITH SPOILER NR 5 INDICATION ON SPI NOT WORKING. AFTER A/C ON BLOCKS ENGINE SHUT DOWN, NR 1 ENGINE VIBRATION SHOWED 4 UNITS. ENTERED SPI FOR NR 5 SPOILER ON DMI 2. REMOVED AND REPLACED VIBRATION MONITOR AND PERFORMED ENGINE RUN UP AND TEST NR 1 PER LOCKHEED L1011 MM 77-32-0 NORMAL.