AN A320 ON TKOF CLB DECLARED AN EMER AND DIVERTED DUE TO TRAILING EDGE FLAPS LOCKED AND ECAM WARNING 'FLT CTL FLAPS LOCKED.' FOUND FLAP INTERCONNECTING STRUT ROD END NOT CONNECTED.

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AUG/TUE/05; FLT DEPARTED FROM ZZZ AND DIVERTED TO ZZZ1 DUE TO ECAM WARNING 'FLT CTL FLAPS LOCKED.' UPON ARR TO GATE; I SPOKE WITH THE FLT CREW AND CONFIRMED THAT BOTH L AND R FLAPS WERE LOCKED. WE USED THE POSTFLT RPT AND A320 TROUBLESHOOTING MANUAL FOR FAULT ISOLATION. I FOUND THE ROD END OF THE R INTERCONNECTING STRUT LOOSE IN THE FLAP ATTACHMENT FITTING. THE ROD END WAS NOT ATTACHED TO THE FITTING BY THE BOLT; WASHER; NUT; AND COTTER PIN. I VERBALLY RPTED THE DISCREPANCY TO COMPANY MAINT CTL AND THE MAINT SUPVR AT ZZZ. WE PERFORMED THE NECESSARY TESTING AND RESTORED THE R INTERCONNECTING STRUT TO NORMAL OP. WHILE PERFORMING THE OPERATIONAL TEST OF THE FLAP/SLAT SYS; THE LEAD TECHNICIAN CLRED THE AGENTS TO BOARD THE FLT. AFTER COMPLETING THE TEST; WE WENT TO THE MAINT OFFICE TO SIGN OFF THE LOG PAGE. I WAS RESEARCHING MANUAL REFS WHEN THE FLT CREW AND AGENTS BEGAN INQUIRING ABOUT THE LOCATION OF THE LOGBOOK. THE FLT WAS READY FOR DEP SO I HASTILY WROTE A BRIEF DESCRIPTION OF THE FAULT AND MAINT PERFORMED. FOR THE FAULT FOUND; I WROTE 'FOUND LOOSE INTERCONNECT ROD END.' I WROTE A BRIEF DESCRIPTION DUE TO THE IMMEDIATE NEED FOR THE LOGBOOK BY THE FLT CREW AND THAT I VERBALLY RPTED THE FAULT FOUND TO COMPANY MAINT CTL AND THE MAINT SUPVR AT ZZZ. THIS WAS AN OPERATIONAL DEV INCIDENT EVENT AND I BELIEVE I SHOULD HAVE WRITTEN A DETAILED DESCRIPTION OF THE FAULT FOUND AND REFED MANUAL PROCS. I ALSO BELIEVE WE SHOULD DELAY BOARDING UNTIL THE LOG PAGE IS SIGNED OFF AND THE BOOK RETURNED TO THE FLT DECK.