As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROACHING TOP OF DESCENT INTO DTW, BOTH -B- PUMP LOW PRESSURE LIGHTS ILLUMINATED. -A- SYSTEM SHOWED 2.5 GALLONS, -B- SYSTEM QUANTITY SHOWED 1.7 GALLONS. -B- SYSTEM PRESSURE FELL TO ZERO AFTER SOME FLUCTUATIONS. COMPLIED WITH COM PROCEDURE FOR FLUID LOSS AND DECLARED AN EMERGENCY. FLIGHT MADE AN UNEVENTFUL LANDING IN DTW. DTW MAINTENANCE FOUND -B- PUMP PRESSURE LINE HAD FAILED AND REPLACED SAME. REPLACED NR 2 -B- PUMP AND SERVICED. ALL LEAK AND OPERATIONAL CHECKS OK.