As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 AFT FUEL LOW PRESSURE LIGHT DID NOT ILLUMINATE WHEN SWITCH TURNED OFF. GROUNDED - YES. PERFORMED FUEL QUANTITY BITE TEST IAW B737-900 AMM 28-41-00. NO FAULTS FOUND. PERFORMED MASTER LIGHTS TEST IAW AMM 33-18-00. #2 AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATES DURING TEST. CONFIRMED #2 AFT FUEL PUMP PROPERLY TURNS ON AND OFF IAW AMM 28-22-41. REMOVED AND REPLACED #2 AFT FUEL BOOST PUMP PRESSURE SWITCH REF AMM 28-42-11. OPS CHECK GOOD. SYSTEM RETURNED TO NORMAL.