My '76 F just got out of the first annual as the new owner and this is my first plane too. Not a MSC. The inspection and basic consumables were 2100. They found lots of little things but also some more time consuming things I wasn't expecting. Being new to this, I just don't have any perspective on what is typical and what seems out of the ordinary. Here are some highlights:
1. According to the A&P, AD 73-21-01a (lube) didn't look like it had been done recently, even though it was logged last year. The plane was flown 130 hrs since the last annual and my understanding is that it is a 100 hr check - correct? He based it on the appearance/accumulation of "gunk" throughout. So 6.5 hrs of work later and all is well apparently. I wasn't there for the inspection so didn't' see it. Also there was "gunk" clogging the drain holes in the the tail/stinger area which was an additional 2 hours.
2. Left brake caliper leak required disassembly and bleed - 3 hrs
3 Brake lining rivets were installed incorrectly and had to be drilled out and new ones installed - Less than an hour but surprised to learn that something was installed backwards
4. Loose tinnerman clips on all the wing, belly, and tail panels - so they squeezed every nut with pliers to tighten....4hrs
5. Leaking fuel sending unit needed new gasket so clean/inspect 1.6hrs.
All in all, the above list and many little things doubled the cost of the annual. Though I was expecting findings during the annual that would need to be addressed, I didn't think it would be double the cost worth. I've heard of some who have had 10K+ annuals though so maybe I should consider myself lucky. This was the first annual at this facility and I'm guessing that makes a difference as well.