The lacquer is used to mask components during surface treatment. Koenigsmann speculated that a minuscule amount dropped down into the tiny vent hole most likely in the cleaning process.
Upon closer inspection, the team found the same potential issue on two of the Crew-1 booster’s engines and one engine for the booster to be used in the Sentinel 6 mission, which is scheduled to launch a satellite on November 10.
NASA Commercial Crew program manager Steve Stich says the team is “in the process of swapping out two engines on the first stage of the Crew-1 vehicle due to this problem.”
NASA will send four astronauts to the space station
The crew is now in “soft quarantine” until after NASA’s will host a static test fire of the rocket on Monday, November 9, a routine check that fires the engines without moving the rocket.
The Crew-Dragon launch will send 4 astronauts on a mission in space. Mission specialist Shannon Walker, pilot Victor Glover, Crew-Dragon commander Michael Hopkins and Japan Aerospace Exploration Agency (JAXA) astronaut and mission specialist Soichi Noguchi are scheduled for a practice launch on November 11.
