Narrative:

Approximately 40 mi southwest of lga airport, climbing through 13000 ft to 17000 ft, we experienced TCASII advisory of aircraft at 12 O'clock descending through 15300 ft. Received second TCASII advisory, followed by center controller instructions to 'expedite climb through 15000 ft.' immediately initiated rapid climb. Shortly thereafter, received TCASII RA to 'descend.' due to our very high rate of climb, we continued with the controller's resolution. Aircraft was visually sighted at 1 O'clock and less than 1 mi, passing our altitude. Supplemental information from acn 266648: the ZNY controller instructed us to expedite our climb to 17000 ft and we increased our climb rate to 3500 FPM. After we increased the rate of climb to 3500 FPM, we received a TCASII RA to descend at 2500 FPM. At this time we determined that the traffic was roughly 14000 ft and at our 12 O'clock position. We next spotted the aircraft visually at 12 O'clock and decided to continue our climb. We also decided to initiate a right turn to avoid the traffic. The TCASII was an invaluable aid but the RA came after we were committed to climb. The other aircraft was descending.

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Original NASA ASRS Text

Title: ACR X TCASII RA HAD LTSS FROM ACFT Y. SYS ERROR. EVASIVE ACTION TAKEN.

Narrative: APPROX 40 MI SW OF LGA ARPT, CLBING THROUGH 13000 FT TO 17000 FT, WE EXPERIENCED TCASII ADVISORY OF ACFT AT 12 O'CLOCK DSNDING THROUGH 15300 FT. RECEIVED SECOND TCASII ADVISORY, FOLLOWED BY CTR CTLR INSTRUCTIONS TO 'EXPEDITE CLB THROUGH 15000 FT.' IMMEDIATELY INITIATED RAPID CLB. SHORTLY THEREAFTER, RECEIVED TCASII RA TO 'DSND.' DUE TO OUR VERY HIGH RATE OF CLB, WE CONTINUED WITH THE CTLR'S RESOLUTION. ACFT WAS VISUALLY SIGHTED AT 1 O'CLOCK AND LESS THAN 1 MI, PASSING OUR ALT. SUPPLEMENTAL INFO FROM ACN 266648: THE ZNY CTLR INSTRUCTED US TO EXPEDITE OUR CLB TO 17000 FT AND WE INCREASED OUR CLB RATE TO 3500 FPM. AFTER WE INCREASED THE RATE OF CLB TO 3500 FPM, WE RECEIVED A TCASII RA TO DSND AT 2500 FPM. AT THIS TIME WE DETERMINED THAT THE TFC WAS ROUGHLY 14000 FT AND AT OUR 12 O'CLOCK POS. WE NEXT SPOTTED THE ACFT VISUALLY AT 12 O'CLOCK AND DECIDED TO CONTINUE OUR CLB. WE ALSO DECIDED TO INITIATE A R TURN TO AVOID THE TFC. THE TCASII WAS AN INVALUABLE AID BUT THE RA CAME AFTER WE WERE COMMITTED TO CLB. THE OTHER ACFT WAS DSNDING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.