Narrative:

Harrisburg approach asked for a higher altitude on aircraft X (lear 45) mdt larri.J110. I approved 10000 ft due to traffic aircraft Y (JS41) at 11000 ft transitioning sector 11. I was sector 27 mdt low. Sector 11 descended aircraft Y to 9000 ft. I was unaware that aircraft X was direct larri. I assumed he was direct air as per LOA. Aircraft passed with approximately 3 mi separation less than the 5 mi required. Operational error detection patch was not activated.

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Original NASA ASRS Text

Title: ZNY CTLR EXPERIENCED LOSS OF SEPARATION WITH ENRTE CLBING ACFT AT 10000 FT.

Narrative: HARRISBURG APCH ASKED FOR A HIGHER ALT ON ACFT X (LEAR 45) MDT LARRI.J110. I APPROVED 10000 FT DUE TO TFC ACFT Y (JS41) AT 11000 FT TRANSITIONING SECTOR 11. I WAS SECTOR 27 MDT LOW. SECTOR 11 DSNDED ACFT Y TO 9000 FT. I WAS UNAWARE THAT ACFT X WAS DIRECT LARRI. I ASSUMED HE WAS DIRECT AIR AS PER LOA. ACFT PASSED WITH APPROX 3 MI SEPARATION LESS THAN THE 5 MI REQUIRED. OPERATIONAL ERROR DETECTION PATCH WAS NOT ACTIVATED.

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.