B737 FLT CREW; DURING LOADING OF CARGO; INADVERTENTLY MISS LOCATION OF HAZMAT AND IT IS LOADED IN THE WRONG SECTION OF THE ACFT. THIS MAKES THE HAZMAT INACCESSIBLE DURING FLT.

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HAZMAT DOCUMENTATION WAS INCORRECT. WAS TOLD HAZMAT WOULD BE PUT IN CORRECT POS. WE DID NOT VERIFY IT WAS IN CORRECT POS. HAZMAT WAS LOADED IN POS #5; SHOULD HAVE BEEN IN POS #1. ALL FREIGHT OP. DELAYED LOADING; FUELING AND PAPERWORK. LOADING WAS NOT EVEN STARTED TILL 1 HR AFTER DEP. MAINT LOG WAS FIRST ITEM TO BE READY AND IT SHOWED 1 HR 5 MINS AFTER SCHEDULED DEP TIME. THERE WAS NO MAINT ISSUES OR WX OR SCHEDULING ISSUES THAT CAUSED THIS DELAY. IT SEEMED TO BE GENERAL LACK OF INTEREST IN THE FLT. I LET THIS PERCEIVED ATTITUDE DISTRACT ME AND AFFECT MY ATTITUDE. THE RESULT; WHEN THE HAZMAT SHOWED I CHKED THAT ALL WAS FILLED OUT PROPERLY AND SIGNED. I WAS TOLD EARLIER BY AGENT (PRIOR TO GETTING PAPERWORK) THAT WE WOULD HAVE HAZMAT AND THAT IT WOULD BE LOADED IN PALLET POS #1. ON ARRIVING KTN; FOUND OUT IT WAS IN FACT INCORRECTLY LOADED IN POS #5. WITH WIDE PALLETS; THIS IS INCORRECT. THE PAPERWORK DID SAY IN FACT SAY POS #5. IT WAS AN ERROR THAT I SHOULD HAVE TRAPPED. SUPPLEMENTAL INFO FROM ACN 686945: WITH WIDE 125 INCH PALLETS BTWN POS #1 AND POS #5 WE COULD NOT HAVE GAINED ACCESS TO PALLET POS #5 IF NECESSARY. PREVENTIVE MEASURES: GO WHEN YOU ARE READY AS A FLT DECK CREW MEMBER; DON'T ALLOW YOURSELF TO BE RUSHED BY A LATE ARR OF A MAINT LOGBOOK OR THE LAST SECOND FORM THAT SHOWS UP. SET YOUR OWN PACE.