As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: NUMBER 1 AFT FUEL PUMP LOW PRESSURE LIGHT DOES NOT TURN ON WITH THE PUMP OFF. VERIFIED FAULTY SWITCH; REMOVE AND REPLACED NUMBER 1 AFT LEFT FUEL BOOST PUMP PRESSURE SWITCH. PER AMM 28-42-11. OPERTIONAL TEST GOOD. LOW PRESS LIGHT ILLUMINATES ON OFF. NO LEAKS DETECTED.