AN MD80 CREW WAS CONFUSED OVER LOGBOOK SIGNOFFS FOR A L AND R FUEL INLET PRESSURE PROB WHEN ONLY THE L SWITCH WAS REPLACED.

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I WAS CALLED OUT ON ACFT X REGARDING LOG PAGE X AND THE FLT CREW NEEDED AN EXPLANATION ON WHY THE LOG PAGE WAS CLRED BY CHANGING ONLY THE L FUEL INLET PRESSURE SWITCH WHILE THE WRITE-UP WAS FOR BOTH THE L-HAND AND R-HAND. MOREOVER THEY WANTED TO KNOW THE REF GIVEN IN THE SIGNOFF. I RESEARCHED THE INFO AND WAS UNABLE TO PROVIDE THEM WITH A COMPLETE EXPLANATION. SO I NOTIFIED MY SUPVR AND STARTED A CHK OUT ON BOTH CTR BOOST PUMPS AND BOTH FUEL INLET PRESSURE SWITCHES USING CTR PUMPS. UPON XFERRING FUEL OUT OF CTR TANK; BOTH INLET PRESSURE LIGHTS FLICKERED USING CTR FORWARD PUMP AND R INLET PRESSURE FLICKERED USING CTR AFT PUMP. AT THIS POINT I GENERATED A LOG PAGE; XX; AND I SHORT SIGNED WHAT I DID AND WHAT I FOUND AND I TIED-IN TO THE ONCOMING SWING SHIFT. LOG PAGE X WAS CLOSED OUT WITH INCOMPLETE WORK. THE REF GIVEN IS A LETTER TO OPERATORS WHICH HAS NOTHING TO DO WITH THE DISCREPANCY. ALL IT TALKS ABOUT IS CTR PUMPS LOW PRESSURE INDICATION; NOT INLET PRESSURE LIGHTS. LOG PAGE XX THE ONE I GENERATED AND SHORT-SIGNED; THE INFO I PUT IN WAS XFERRED TO A DIFFERENT LOG PAGE X. IN OTHER WORDS; TO LOOK UP WHAT I SHORT SIGNED ON LOG PAGE XX YOU HAVE TO GO TO A LOG PAGE X AND I AM NOT SURE THAT THIS IS A LEGAL DOCUMENTATION.