A B757-200 CREW EXPERIENCED A TRAILING EDGE FLAP ASYMMETRY. THE BEFORE LNDG PROCS WERE ACCOMPLISHED FOLLOWED BY A NORMAL LNDG.

Narrative

WHILE DSNDING INTO JFK WITH A CLRNC FROM 13000 FT TO 8000 FT; WE WERE ASKED TO SLOW FROM 250 KTS TO 210 KTS. JUST BELOW 220 KTS; WITH SPD BRAKES EXTENDED; THE FO (PF) ASKED FOR FLAPS 1 DEG. IMMEDIATELY AFTER SELECTING FLAPS 1 DEG; WE GOT TRAILING EDGE FLAP ASYMMETRY EICAS MESSAGE. I TOLD ATC WE HAD A FLAP PROB AND WANTED TO HOLD SO WE COULD RUN SOME CHKLISTS. THEY GAVE US A HDG AND ALT (9000 FT) RATHER THAN A HOLD. JFK WAS USING THE CANARSIE VOR APCH TO RWY 13L WITH WINDS OF 200 DEGS/16 KTS GUSTING 24 KTS. THE FO AND I AGREED FIRST THAT WE WANTED A STRAIGHT IN APCH TO RWY 22L OR RWY 22R RATHER THAN THE SEMI-CIRCLING ARR TO RWY 13L WITH LITTLE OR NO FLAPS; THEN COMPLETED THE TRAILING EDGE FLAP ASYMMETRY CHKLIST. WE CHKED THE LNDG DISTANCE FOR OUR CONFIGN. THE FO FLEW AND TOOK OVER THE RADIO COM WHILE I READ THE CHKLIST. I ADVISED THE PURSER OF THE SITUATION AND TOLD HER TO DO A CABIN ADVISORY. WE DID NOT DECLARE AN EMER BUT DID ASK FOR THE FIRE EQUIP AS A PRECAUTION. I SENT AN ACARS MESSAGE TO DISPATCH ADVISING THEM OF OUR SITUATION AND THAT WE HAD ASKED FOR THE FIRE TRUCKS. I MADE A PA ANNOUNCEMENT TO THE PAX THAT OUR LNDG WOULD BE FASTER THAN NORMAL; THAT THE FIRE TRUCKS WOULD BE ALONG SIDE OF US; BUT THAT WE EXPECTED NORMAL OPS ON LNDG AND TAXI TO THE GATE. VREF WAS 159. SELECTED AUTO BRAKES #3. THE FO FLEW THE ILS APCH ON GS; MADE A SLIGHTLY FIRM LNDG WITH NO FLOATING ON RWY 22L; AND TURNED OFF AT TXWY J; OUR NORMAL TURN-OFF POINT; WITH NO PROBS. WE ADVISED THE TWR THAT WE HAD NO PROBS AND PROCEEDED TO THE GATE WHERE WE WERE MET BY MAINT. WE DEBRIEFED MAINT AT THE GATE. ATC DID ASK SEVERAL TIMES WHEN WE'D BE READY FOR LNDG. THIS IS SLIGHTLY DISTRACTING AND INTERRUPTED THE CHKLIST; BUT IS MANAGEABLE.