A FOKKER 100 R-HAND FUELING VALVE WAS INSTALLED INCORRECTLY. SAME VALVE AS L-HAND BUT REQUIRES A RESTRICTOR WHICH WAS OMITTED.

Narrative

ON NOV/THU/03; F100 ACFT X WENT OTS FOR A R-HAND FUELING SHUT-OFF VALVE THAT WOULD NOT CLOSE. UPON ARRIVING AT THE HANGAR; A FUELING TRUCK WAS CALLED TO DEFUEL THE ACFT FOR TANK ENTRY. WHEN THE TRUCK ARRIVED WE ASKED THE FUELER TO ATTEMPT TO DUPLICATE THE PROB. ALTHOUGH HE WAS NOT ABLE TO; HE MADE THE COMMENT THAT THE R-HAND WING TOOK FUEL AT A MUCH GREATER RATE THAN THE L-HAND WING WHICH IS ABNORMAL FOR THE F100 ACFT. ACFT WAS DEFUELED; TANK OPENED AND VALVE REMOVED. MAINT MANUAL PROCS WERE FOLLOWED BUT WERE CONFUSING IN THE RESPECT THE PROC ALTERNATES BTWN R-HAND AND L-HAND REMOVAL AND INSTALLATION AND PER PRE- AND POST-SVC BULLETIN. IT IS POSSIBLE THE PROC FOR THE L-HAND VALVE WAS FOLLOWED WHICH APPEARED CORRECT SINCE THE RESTRICTOR PLATE AND THE SEAL WERE NOT INSTALLED IN THE VALVE WE HAD REMOVED BUT ARE CALLED FOR IN THE R-HAND VALVE REPLACEMENT. THE R-HAND VALVE WAS REPLACED IN THE SAME CONFIGN AS IT WAS REMOVED. THE ACFT WAS FUELED AND OPS NORMAL WITH A FUELING TRUCK. SUPPLEMENTAL INFO FROM ACN 605538: WHEN REMOVING THE R-HAND SHUTOFF VALVE; THE RESTRICTOR WAS NOT INSTALLED ORIGINALLY. MAINT; AT SOME PRIOR POINT; MUST HAVE REMOVED THE RESTRICTOR AND NEVER REINSTALLED IT. THE FINAL FIX OF THE AIRPLANE REQUIRED BOTH THE RESTRICTOR AND PLT VALVE.