TAIL STRIKE AND HARD LNDG.

Narrative

UPON LNDG FROM A STABILIZED APCH AT 20 FT AGL; ELEVATOR LOST EFFECTIVENESS LEADING TO A HARD LNDG WITH A BOUNCE. THIS ELEVATOR CTL PROB HAD BEEN RPTED BY MANY LINE PLTS; SOME WRITTEN; SOME NOT ON THIS PARTICULAR DC9. ALSO THE WINDS GIVEN AT EWR WERE OFF DIRECTION AND SPD AS STATED ON CLRNC FREQ 1 HR LATER. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE DC 9-51 FOR A SECOND LEVEL ACR. THE RPTR GOT A TAIL STRIKE ON THIS HARD LNDG WHICH REQUIRED THE ACFT BE REWORKED. AT THE RPTR'S INSISTENCE; THE ACFT WAS WEIGHED. WHEN THE ACFT CAME BACK IN OP; THE EMPTY WT CTR OF GRAVITY WAS MOVED 5 INCHES FORWARD; THE EMPTY WT WAS 1000 LBS HEAVIER; AND A FIXED TAB HAD BEEN CHANGED BY 2 DEGS. THERE WAS AN INVESTIGATION BY THE FAA AND THE RPTR WAS GIVEN A 'WARNING LETTER' AND A '609 RIDE' BY A DESIGNATED EXAMINER. THE RPTR ADMITS THAT HE DID NOT GET ALONG AT ALL WELL WITH THE FAA INVESTIGATOR. THE RPTING FO IS RATHER SHORT AND HAS TO SIT CLOSE TO THE YOKE. AN ACR CHK AIRMAN LATER FOUND THAT THE FO'S SEAT CUSHION WAS LOOSE AND THAT IT COULD INTERFERE WITH THE YOKE WHEN THE SEAT WAS WELL FORWARD.