They let down the rope and I fastened it to the basket.

I promised him I would meet him there, and I will not let him down.

Just as they left, the younger of the two turned around and said, "Mr. President, I just want you to know that we're praying for you," and quickly closed the door behind him.
I thought about these two men, and about the office workers that afternoon, and about the millions of others like them all across the country who still had faith in me. I knew that by resigning I would let them down.

Sooner or later / You hit the deck, you get found out / Save it for later / Don't run away and let me down

ASLEF General Secretary Mick Whelan said: "AWC has continued to cancel services and, every day, continued to let passengers down. But the Government doesn't seem to care.

Let down

Meaning

Verb