Starship/Superheavy on the launchpad prior to 12th test flight in May

The Federal Aviation Administration (FAA) today closed out its investigation of the 12th orbital test flight of Starship/Superheavy and cleared SpaceX to go ahead with the 13th test flight.

In truth what the FAA did was rubberstamp SpaceX’s own investigation into that flight, almost immediately after the company announced on July 11, 2026 that it was targeting July 16, 2026 for launch. The company has now posted a complete description of that investigation and the flight plan for the 13th flight.

First the cause of the failure of Superheavy to successfully return as planned:

At stage separation on Flight 12, slight differences in engine startup on the ship [Starship] caused the directional flip of the booster to be off by approximately 90 degrees. The startup sequence has been modified to be more robust to timing variability and more reliably flip in the desired direction, which is done to increase overall performance.

After stage separation and the flip, the Super Heavy booster attempted its boostback burn. Five of its 33 engines experienced issues when attempting to re-light causing the boostback burn to end early. The Super Heavy on this upcoming flight has hardware modifications to improve re-light reliability along with updates to engine alarms and aborts to match the conditions seen in the multi-engine flight environment.

In addition, hardware changes were made to the engines on Starship, addressing the failure of several to light during flight 12.

The 13th test flight will once again follow the low orbital path used in the past few flights that will bring it down in the Indian Ocean. A relight of a Raptor-3 engine in orbit will once again be on the schedule. Starship will also deploy for the first time 20 actual Starlink satellites, rather than dummy prototypes. Six will be outfitted with cameras to observe Starship’s heat shield as it and the satellites de-orbit.

Finally, the ship will do more tests of its heat shield and tiles during re-entry.

If all goes well, this will lay the groundwork for the first full orbital flight on the next launch, likely to occur about a month or so later.