As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN NR 1 AFT FUEL PUMP SWITCH IS POSITIONED TO OFF THE ASSOCIATED LOW PRESSURE LIGHT DOES NOT ILLUMINATE. LOW PRESSURE LIGHT TESTS GOOD. CHECKED C/B NR 1 AFT FUEL PUMP CORE SOCKET PERFORMED LIGHT TEST AND PUSH TO TEST, PERFORMED SUCCESSFUL GROUND VERIFICATION OF NR 1 AFT BOOST PUMP IAW AMM 28 22 00 730.