List, Easier puzzler for newer technicians... Steinway L, 502XXX: Customer complained that key was sticking and sure enough the A2 key was hanging down a bit. I pulled the action and depressed the key and the hammer/shank stuck up at a 45 degree angle. The key had play at the balance rail and front rail. I pulled the hammer/shank off and the center was not tight. Same with the wippen. I removed neighbor parts and they had no effect on the problem. Clue (in hindsight for me): when I pulled the stack I noticed all the bass keys had 6 leads. What was the problem and no, the leads were not rubbing or causing friction... David I.
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