Sorry, but cases such as this exist.
Back around 1999/2000 I was with Cisco engineering on the GSR 12000 (the first Cisco service provider class router).
We did send a system to a POP in Denver (altitude 5000+ ft) and saw on this system a statistically significant increase in recoverable memory ECC errors.
When the affected board was returned to San Jose and retested (basically sea level) the errors could not be reproduced.
So we returned the hardware back to the Denver POP, and the recoverable ECC errors returned. No amount of swapping memory DIMMs (various vendors) made a difference.
Any satellite hardware designer will tell you that cosmic radiation is a big deal for satellite design. And lead shielding is not a cost effective option in space.