DURING STRONG GUSTY WINDS; FLC OF A DC9 ACCEPTED RWY FOR LNDG THAT WAS THE MOST FAVORABLE FOR THE WIND DIRECTION. AFTER AN UNEVENTFUL LNDG; THEY FOUND THAT THERE WAS NO ACFT PERFORMANCE DATA LISTED FOR THAT RWY.

Narrative

WHILE BEING VECTORED FOR THE VISUAL RWY 24 APCH AT ISP BY ZNY; THE WINDS WERE RPTED AS 310 DEGS AT 18 KTS GUSTING TO 29 KTS. CTR ASKED IF WE WANTED RWY 33L FOR LNDG. THE CAPT AND I AGREED THE WINDS FAVORED THAT RWY; SO WE SAID WE WOULD LIKE THE VISUAL RWY 33L. CTR CLRED US FOR THE VISUAL RWY 33L AND THEN HANDED US OFF TO LONG ISLAND TWR; WHO CLRED US FOR THE VISUAL RWY 33L. THEY ALSO ADVISED US THAT AN AIRBUS RPTED A +10 KT WINDSHEAR ON FINAL TO RWY 33L. I ASKED THE CAPT TO BRIEF THE CRITICAL ITEMS TO THE VISUAL RWY 33L APCH; SINCE I WAS BUSY FLYING. WHEN HE STATED THE RWY LENGTH (5186 FT) I ASKED SHOULD WE CHK THE LNDG PERFORMANCE BOOK (RWY ANALYSIS). HE SAID THAT THE QUICK REF LNDG DISTANCE SHOWN ON THE LNDG V SPD CARD SHOWED IT WOULD BE ADEQUATE DISTANCE. SO I CONTINUED THE APCH AND LANDED UNEVENTFULLY. AT THE GATE; I LOOKED IN THE LNDG PERFORMANCE BOOK ONLY TO DISCOVER RWY 33L IS NOT EVEN LISTED AS A USABLE RWY (NO PERFORMANCE DATA GIVEN FOR THAT RWY). IN THE FUTURE; I WILL NOT RELY ON THE LNDG V SPD CARDS REQUIRED RWY LENGTHS; BUT IF DOUBT EXISTS USE THE LNDG PERFORMANCE BOOK (RWY ANALYSIS).