RWY INCURSION BY A B757 FLT MANDATES AN ABORTED TKOF AT LOW SPD FOR A B767 ON RWY AT JFK; NY.

Narrative

RWY INCURSION. JFK RWY 4L. AFTER LNDG JFK RWY 4R; TAXI INSTRUCTIONS WERE TO HOLD SHORT RWY 4L ON TXWY F; AND TO REMAIN WITH SAME TWR FREQ. (NOTE: JFK UTILIZES DIFFERENT FREQS FOR DEPS/ARRS ON PARALLEL RWYS.) WHILE HOLDING SHORT; FLT ATTENDANT CALLED THE COCKPIT TO INFORM US THAT PAX WERE STANDING AND THAT SHE WAS MAKING A PA IN ORDER TO HAVE THEM RETURN TO THEIR SEATS. THE COPLT ACKNOWLEDGED THE CALL ON INTERCOM AND RETURNED TO MONITOR TWR FREQ JUST AS TWR CALLED REQUESTING GATE AND RAMP ENTRY POINT; AND ALLEGEDLY PROVIDED TAXI CLRNC TO CROSS RWY 4L. THIS XMISSION WAS PARTIALLY BLOCKED. THE COPLT PROVIDED GATE/RAMP INFO; AND READ BACK XING CLRNC. I QUESTIONED THE COPLT ABOUT TAXI CLRNC; AND HE ACKNOWLEDGED THAT WE WERE CLRED AND THAT HE HAD READ BACK TAXI CLRNC. I TAXIED FORWARD; AND AS THE NOSE OF THE ACFT CROSSED THE RWY 4L HOLD SHORT LINE; TWR CALLED AND INSTRUCTED US TO HOLD SHORT. THE ACFT STOPPED SHORT OF RWY 4L WITH THE NOSE OF THE ACFT OVER THE HOLD SHORT LINE. SHORTLY THEREAFTER; TWR INFORMED ME THAT ACFT ON RWY WAS AT TAXI SPD; AND WELL CLR; AND PROVIDED CLRNC TO CROSS RWY 4L AND CONTACT GND CTL. WE COMPLIED AND TAXIED TO THE GATE. ENVIRONMENTAL CONDITIONS: 1) BUSY TIME OF DAY AT JFK FOR DEP/ARRS. MANY XMISSIONS; SOME BLOCKED. 2) WX: 600 FT OVCST/2 MI VISIBILITY/RAIN. 3) WINDSHIELD WIPER MALFUNCTION. UTILIZED WIPERS FOR LNDG DUE TO RAIN. AFTER CLRING RWY; TURNED WIPERS OFF; AND ONLY R WIPER WENT TO PARK WHILE THE L CONTINUED TO OPERATE. IN SPITE OF SEVERAL ATTEMPTS TO SECURE SYS; L BLADE CONTINUED (VERY LOUD). 4) INTERCOM CALL FROM FLT ATTENDANT RELIEVED JUST PRIOR TO TWRS CALL REGARDING GATE/RAMP INFO. INTERCOM PARTIALLY BLOCKED XMISSION. (WE DETERMINED LATER THAT NO TAXI CLRNC WAS GIVEN.) 5) NO QUERY OR NEGATIVE RESPONSE FROM TWR WHEN COPLT READ BACK CLRNC. THIS ADDED TO OUR BELIEF THAT WE WERE CLRED TO CROSS. SUPPLEMENTAL INFO FROM ACN 583764: ACFT HAD JUST BEEN CLRED FOR TKOF STILL AT TAXI SPD ABORTED HIS TKOF. REDUCED VISIBILITY MADE DEPARTING ACFT DIFFICULT TO SEE. EXPECTATIONS OF HEARING A XING INSTRUCTION -- YOU TEND TO HEAR WHAT YOU EXPECT TO HEAR.