AN FAA INSPECTOR NOTIFIED FLT CREW THAT THE #1 ENG WAS HARDER TO TURN THAN THE #2 ENG. FLT CREW CHKED IT OUT AND DETERMINED IT WAS OPERATING NORMALLY.

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AS I ARRIVED AT GATE AREA; GATE AGENT INFORMED ME THAT FAA INSPECTOR WANTED TO SPEAK WITH ME. FAA INSPECTOR CAME TO ACFT AND SAID THAT HE NOTED THE #1 ENG WAS HARDER TO TURN BY HAND THAN #2 ENG. I INFORMED HIM THAT FLT CTL AND OUR MAINT WOULD BE CONTACTED AND INFORMED OF THE SIT. AFTER A LENGTHY DISCUSSION; MAINT AND I DECIDED THERE WAS NOTHING IN ACFT HISTORY THAT INDICATED ANY PROB. ALSO; WE HAD BROUGHT THIS ACFT INTO THE LAYOVER STATION THE PREVIOUS NIGHT AND HAD NOT NOTED ANY PROB WITH EITHER ENG. WE DECIDED TO TEST RUN THE ENGS AT THE GATE. DURING START; WE TIMED N1 AND N2 AND EGT RISE AND TIME FOR ENGS TO STABILIZE. ALL READINGS WERE THE SAME. DURING THIS TIME THE FAA MAN LEFT AND DID NOT SAY ANYTHING TO THE CREW. AFTER ANOTHER DISCUSSION WITH MAINT WE FELT THERE WAS NOTHING WRONG WITH THE ENG AND BOARDED ALL PAX AND DEPARTED OAK FOR ATL. ENGS PERFORMED NORMALLY DURING 4 HR FLT. UPON ARR IN ATL; FLT CTL INFORMED US THAT A CONTRACT MECH HAD SHOWN UP IN OAK AND TOLD OUR OPS CTR THAT HE HAD BEEN CALLED OUT BY FAA AND WAS INSTRUCTED NOT TO ALLOW US TO LEAVE PRIOR ACFT BEING REPAIRED. UNFORTUNATELY; WE HAD ALREADY DEPARTED!