USA-582

USSF-87 Mission. Approximately 1 minute and 7 seconds into the launch, the nozzle on one of the solid rocket boosters (SRBs) fell off, resulting in a shower of debris in the exhaust plume. Although the SRB continued to function for its full 90-second burn, the anomaly led to reduced, asymmetrical thrust. This caused the rocket to roll before the guidance system and main engines successfully corrected and extended their burn to compensate. Despite the anomaly, the rocket achieved a perfect orbital insertion. Following the launch, the U.S. Space Force placed an indefinite hold on national security missions on Vulcan pending investigation of the repeat SRB anomaly.