Batch-1 A350 prototypes have rework scheduled as part of the Final Assembly process.
This rework is a matter of weeks as compared to years for the initial 787.
Airbus has installed temporary rework hangars made out of tents to cater for this rework.
The flight test prototype MSN3 had their engines removed last weeks at Toulouse.
Based on the article “Bjorn’s Corner: Boeing’s 787 and Airbus’ 350 programs, a snapshot” published in Leeham News.