Narrative:

I crossed aircraft Y from runway 22R at taxiway golf; and put aircraft X in line up and wait. I observed aircraft Y cross and come to a stop on taxiway B at which point he looked clear of the runway from my point of view and on the asdex. I still waited until I saw aircraft Y moving ahead slightly; and overheard ground control issue instructions to taxi via alpha. Then issued aircraft X a takeoff clearance. Aircraft X took off and then advised me airborne that an aircraft wasn't clear of the runway. The aircraft was clear of the runway from my point of view; and I issued a takeoff clearance after seeing him taxi up a little. I should have verified with ground that he would not be held there for a prolonged period of time.

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Original NASA ASRS Text

Title: EWR Controller and an air carrier flight crew reported another air carrier's tail was not clear of the runway environment; resulting in a runway incursion and jet blast event.

Narrative: I crossed Aircraft Y from RWY 22R at taxiway golf; and put Aircraft X in line up and wait. I observed Aircraft Y cross and come to a stop on taxiway B at which point he looked clear of the runway from my point of view and on the ASDEX. I still waited until I saw Aircraft Y moving ahead slightly; and overheard Ground Control issue instructions to taxi via Alpha. Then issued Aircraft X a takeoff clearance. Aircraft X took off and then advised me airborne that an aircraft wasn't clear of the runway. The aircraft was clear of the runway from my point of view; and I issued a takeoff clearance after seeing him taxi up a little. I should have verified with Ground that he would not be held there for a prolonged period of time.

Data retrieved from NASA's ASRS site 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.