Pierre Gasly apologised to Red Bull in the wake of a hefty crash that brought his running to a premature conclusion on Friday in Germany.
Gasly endured a difficult start to his Red Bull career but displayed stronger pace at the most recent event in Britain, running competitively among the leaders before classifying fourth.
But Gasly was off the pace during practice at Hockenheim and, having been only 15th during the qualifying simulations in FP2, crashed out of the session during his race run.
Gasly suffered a snap of oversteer through the final corner and, in trying to correct the car, slid through the gravel and into the barriers.
The impact caused substantial damage to the left-hand-side of the Red Bull RB15.
“It was quite a tricky day today,” said Gasly. “We managed to get some decent laps during FP1 and the feeling with the car was good.
“We completed the normal tests and then in FP2, we had a couple of issues which meant we didn’t get a short run on Soft tyres and that put us back in the classifications, but the feeling was still good.
“Unfortunately, towards the end of the session I lost the car exiting the final corner during a long run and hit the barrier.
“Fortunately I wasn’t using my race engine or gearbox, but more importantly I’m really sorry for the boys in the garage and I want to apologise to them as the repairs will make for a long night.
“Looking ahead to tomorrow, the conditions are going to be completely different so we need to learn from today and analyse all the tests we have done.”
On Gasly's crash, Red Bull motorsport consultant Helmut Marko said: "You saw it. He lost it. No issue on the car. He just lost it.
"First we have to see that we can repair the car, I’m sure we can, but we are running out of parts now, that’s the problem."