What was found
DURING TAXI OUT, RT AFT FUEL PUMP LOW PRESSURE LIGHT AND EICAS MESSAGE CAME ON, ACFT RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C , MTX DEFERRED RT AFT FUEL PUMP IAW MEL 28-22-1. AND RETURNED A/C TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAXI OUT, RT AFT FUEL PUMP LOW PRESSURE LIGHT AND EICAS MESSAGE CAME ON, ACFT RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C , MTX DEFERRED RT AFT FUEL PUMP IAW MEL 28-22-1. AND RETURNED A/C TO SERVICE.