Starlink Launch 5

B1048 attempted to become the first booster to fly five times - and succeeded at the launch objective: 60 v1.0 satellites reached the 53° shell despite one engine shutting down near the end of the first-stage burn, the first Falcon 9 in-flight engine shutdown since CRS-1 in 2012, and the first ever on the Merlin 1D variant. Investigation later traced the cause to residual isopropyl alcohol cleaning fluid trapped in a sensor that ignited and triggered the shutdown. The booster was lost on landing, the second consecutive Starlink booster loss.

The mission also flew fairings that had previously flown on the May 2019 v0.9 Starlink launch - the second time SpaceX reused a fairing set.