Narrative:

Took over sector with 3 aircraft left to sequence; 2 in holding; one just cleared back on the arrival. Decided to bring an aircraft who was on top of the holding stack first; due to the aircraft's request; not to hold past XA30z. Descended the aircraft in hold stack expecting aircraft to descend before a confliction developed; didn't happen. Recommendation; tell aircraft what you need; don't expect aircraft to know.

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Original NASA ASRS Text

Title: ZHU controller experienced operational error while attempting to vector the top aircraft from the holding pattern for sequencing; failing to note the confliction developing with the aircraft below.

Narrative: Took over sector with 3 aircraft left to sequence; 2 in holding; one just cleared back on the arrival. Decided to bring an aircraft who was on top of the holding stack first; due to the aircraft's request; not to hold past XA30z. Descended the aircraft in hold stack expecting aircraft to descend before a confliction developed; didn't happen. Recommendation; tell aircraft what you need; don't expect aircraft to know.

Data retrieved from NASA's ASRS site as of April 2012 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.