ACFT EQUIP PROB SKIN DELAMINATION OF PART OF A LEADING EDGE SLAT.

Narrative

HOLE IN PORT LEADING EDGE. AFTER CLBOUT; AT APPROX 16000 FT; A PAX NOTICED A HOLE IN THE LEADING EDGE SLAT. A FLT ATTENDANT WAS NOTIFIED AND IN TURN NOTIFIED THE COCKPIT. THE CAPT ASKED THAT I TAKE A LOOK AND; UPON VERIFYING THAT IT WAS INDEED A HOLE; THE CAPT DECLARED AN EMER AND ASKED FOR A LNDG BACK IN SFO. ALL CHKLISTS WERE FOLLOWED AND; UPON SELECTING FLAPS TO 5 DEGS; A STRONG VIBRATION WAS NOTED. FLAPS 1 DEG WAS SELECTED AND A NO FLAP LNDG WAS ELECTED. LNDG WAS UNEVENTFUL. NO HOLE WAS NOTED BY MAINT UPON RELEASE OR BY THIS FO DURING HIS WALK AROUND OR THE PUSHBACK CREW AT PUSHBACK. NO VIBRATION WAS NOTED UNTIL FLAPS 5 DEGS WAS SELECTED FOR LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE B-767 FOR A MAJOR UNITED STATES ACR. A BOEING REPRESENTATIVE MET THE ACFT WHEN IT RETURNED TO THE GATE AND DETERMINED THAT THE TOP OF ONE OF THE LEADING EDGE SLATS HAD DELAMINATED. A PIECE ABOUT 1 FT WIDE AND 3 FT LONG CAME OFF FROM THE AFT OF THE SLAT FORWARD. A FOLLOWING ACR ACFT SAW THE PIECE LEAVE THE ACFT AND RPTED THIS TO SFO ATCT. THE ACFT REFUSED TO TKOF UNTIL AN INSPECTION OF THE RWY HAD BEEN MADE. THE RPTR'S ACFT WAS NOT NOTIFIED OF THE MISSING PIECE BY EITHER SFO ATCT OR BY BAY TRACON. THE VIBRATION WAS 'ALARMING' WHEN THE FLAPS AND SLATS WERE STARTED TO THE DOWN POS; SO A NO FLAP LNDG WAS MADE. THERE IS NO PROC IN THIS ACR'S FLT MANUAL TO LEAVE THE LEADING EDGE SLATS UP AND COMMAND THE TRAILING EDGE SLATS DOWN. THE LNDG WAS UNEVENTFUL BUT FAST. THE FLC HAS HEARD NOTHING FURTHER FROM THE FAA ON THIS MATTER.