As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG. OIL PRESSURE LIGHT INOP ( LOW ENG OIL PRESS INDICATION SYSTEM (-200/-300), ALL EXCEPT JT9D WITHOUT SB767-78-8 INSTALLED, AND CF6-80A/A2 WITHOUT SB767-78-8 INSTALLED )(<P>TRANSFER TO MDDR# 146554 IAW DDG 79-33-01-01 CAT "C" DUE DATE 17MAY21. PLACARD INSTALLED. C/W DDG PROCEDURES.</P><P>LP 1475963: REMOVED AND REPLACED LH ENGINE OIL PRESS LIGHT ASSY PER SWPM 20-84 AND SWITCH FUNCTION OPS CHECK GOOD, THIS CLEARS MDDR 146554.</P>)