On several occasions, debris from trunk sections of Dragon spacecraft, which are jettisoned from the capsule before the capsule performs a deorbit burn, have been found on land. They include debris from the Crew-1 Crew Dragon trunk, found in Australia in 2022; the Ax-3 Crew Dragon, which fell in Saskatchewan in February; and the Crew-7 trunk, fragments of which were found in May in North Carolina.
In August 2022, shortly after the Crew-1 debris was found in Australia, a SpaceX official downplayed the incident as an isolated case. “This was all within the expected analyzed space of what can happen,” said Benji Reed, senior director of human spaceflight programs at SpaceX, at a NASA briefing. “Nonetheless, just like we do for launches and any return, we look very closely at the data, we learn everything that we can and we always look for ways we can improve things.”
After the more recent debris sightings, NASA and SpaceX now acknowledge that improvements are needed. The agency recently stated that initial studies expected the trunk to burn up fully upon reentry. “NASA and SpaceX will continue exploring additional solutions as we learn from the discovered debris,” NASA stated.
“We did analysis back before Demo-2 and clearly the models don’t deal with the trunk very well,” Steve Stich, NASA commercial crew program manager, said in an interview after a Starliner briefing ahead of that mission’s June 6 launch. He said it’s likely because of the composite materials used in the trunk. “It’s almost like a thermal protection system.”