DC10 DEVELOPED ELECTRICAL PROBLEMS DURING CRUISE. FLT CREW DISCONNECTED AND RECONNECTED THE GENERATOR; AND POWER WAS RESTORED. THE ANOMALY WAS NOT 'WRITTEN UP' AFTER LNDG.

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OPERATING PART 91 ON A REPOS FLT; APPROX 2 HRS ENRTE; I ENCOUNTERED AN ELECTRICAL PROB THAT I COULD NOT IDENT VIA THE ELECTRICAL PANEL. AFTER SOME SELF DIAGNOSIS; WE DISCONNECTED THE #3 GENERATOR. ONCE THE GENERATOR WAS BROUGHT BACK ON LINE; ALL ELECTRICAL INCONSISTENCIES DISAPPEARED. I HAD TO GO TO AN ALTERNATE ARPT DUE TO WINDSHEAR AT MY DEST. I DID NOT MAKE AN ENTRY INTO THE LOGBOOK DUE TO THE FACT THAT AFTER EVERYTHING WAS RESTORED ON THE ELECTRICAL PANEL; THERE WAS NOTHING TO WRITE UP -- ALL SYS WERE WORKING NORMALLY. I ALSO WAS UNDER COMPANY PRESSURE TO GET THE ACFT TO ITS DEST. IF I HAD WRITTEN UP THE ACFT AT ITS ALTERNATE DEST; MAINT WOULD NOT HAVE BEEN ABLE TO SVC THE ACFT AND IT WOULD HAVE DELAYED FLTS DOWN THE LINE FOR AN UNDETERMINABLE AMOUNT OF TIME. BESIDES; THERE WAS AN ACFT MECH ON BOARD THE ACFT AND WITNESSED ALL OF THE IRREGULARITIES AND SUGGESTED NO ACTION. THE MECH TESTED ALL ASPECTS THAT HE KNEW ABOUT THE ELECTRICAL SYS THE FOLLOWING DAY AND COULD NOT FIND ANY PROBS. AFTER DISCUSSING THE INCIDENT WITH MY FLEET MGR; I REALIZED THAT I SHOULD HAVE WRITTEN THE ACFT UP. I WAS REMINDED THAT ANY TIME WE HAVE TO DISCONNECT A GENERATOR TO TROUBLESHOOT AN ELECTRICAL PROB; IT SHOULD BE NOTED IN THE LOGBOOK.