As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 TANK AFT BOOST PUMP LOW PRESSURE LIGHT NOT ILLUMINATED WHEN SWITCH IN OFF POSITION. GROUNDED - YES. REMOVED AND REPLACED #2 TANK AFT BOOST PUMP PRESSURE SWITCH REF B737-800 AMM 28-42-11. OPERATIONAL TEST PASS REF AMM 28-42-11-700-801, AND LIGHT NOW ILLUMINATES WHEN SWITCH IN OFF POSITION. LEAK CHECK PASS. GROUND VERIFICATION TEST SUCCESSFUL.