Narrative:

Air carrier X cleared into position and hold. On runway 21L an air carrier light transport landing on runway 27 as we entered position on 21L. Tower controller then cleared air carrier X for immediate takeoff on 21L. Air carrier X began immediate takeoff roll. Tower controller then told air carrier X to stop takeoff roll cancel takeoff clearance. Air carrier X then aborted takeoff roll. Air carrier Y then appeared over threshold for runway 27 and asked tower if that aircraft in stopping his roll. When air carrier X was cleared for takeoff. No aircraft were visible out left side of aircraft since runway 27 final was behind air carrier X positioned on runway 21L. After air carrier Y landed on runway 27, tower then cleared air carrier X for takeoff on 21L. I feel the tower controller misjudged the spacing and felt he could get air carrier X through the runway 27 intersection before air carrier Y landed on runway 27. This takeoff sequencing is unusual for detroit and controller misjudged the situation and compromised safety.

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Original NASA ASRS Text

Title: LCL CTLR CANCELLED ACR X TKOF CLRNC AFTER TKOF STARTED.

Narrative: ACR X CLRED INTO POS AND HOLD. ON RWY 21L AN ACR LTT LNDG ON RWY 27 AS WE ENTERED POS ON 21L. TWR CTLR THEN CLRED ACR X FOR IMMEDIATE TKOF ON 21L. ACR X BEGAN IMMEDIATE TKOF ROLL. TWR CTLR THEN TOLD ACR X TO STOP TKOF ROLL CANCEL TKOF CLRNC. ACR X THEN ABORTED TKOF ROLL. ACR Y THEN APPEARED OVER THRESHOLD FOR RWY 27 AND ASKED TWR IF THAT ACFT IN STOPPING HIS ROLL. WHEN ACR X WAS CLRED FOR TKOF. NO ACFT WERE VISIBLE OUT LEFT SIDE OF ACFT SINCE RWY 27 FINAL WAS BEHIND ACR X POSITIONED ON RWY 21L. AFTER ACR Y LANDED ON RWY 27, TWR THEN CLRED ACR X FOR TKOF ON 21L. I FEEL THE TWR CTLR MISJUDGED THE SPACING AND FELT HE COULD GET ACR X THROUGH THE RWY 27 INTXN BEFORE ACR Y LANDED ON RWY 27. THIS TKOF SEQUENCING IS UNUSUAL FOR DETROIT AND CTLR MISJUDGED THE SITUATION AND COMPROMISED SAFETY.

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.