Narrative:

Gave aircraft #1 a time restr to be level at FL410 in 4 mins or less to top traffic at FL390. Aircraft #1 did not comply with the restr. Action taken was not in time to prevent a loss of separation. Supplemental information from acn 576202: use of time restr puts responsibility on aircraft so position confirmation from pilot on time involved is needed.

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Original NASA ASRS Text

Title: GLF5 CREW DOES NOT REACH FL410 IN 4 MINS AS INSTRUCTED AND CONFLICTS WITH TFC AT FL390.

Narrative: GAVE ACFT #1 A TIME RESTR TO BE LEVEL AT FL410 IN 4 MINS OR LESS TO TOP TFC AT FL390. ACFT #1 DID NOT COMPLY WITH THE RESTR. ACTION TAKEN WAS NOT IN TIME TO PREVENT A LOSS OF SEPARATION. SUPPLEMENTAL INFO FROM ACN 576202: USE OF TIME RESTR PUTS RESPONSIBILITY ON ACFT SO POS CONFIRMATION FROM PLT ON TIME INVOLVED IS NEEDED.

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.