Brake Disc part numbers

[Bob Waters]

I have a 62 PA24-250 (SN24-3110) that needs new brake discs. I have the rivit-on type. The parts manual is less than helpful. My friend with a Comanche a couple hundred units newer than mine says the part number is 159-00104 and gave me an old disc with that number on it. Spruce shows a Rapco replacement as RA164-00900 for the PA24-250. The parts desk at Johnson Aircraft, who advertise on the rear cover of the Flyer, said the 164- series is a bolt-on type using the through bolts on the wheels. Those discs are ~$100 to $120/ea. many places. He said the 159- series is the rivit-on type at almost $600/ea. He said the rivit-on type was not common enough for PMA producers, so only Cleveland has it. Am I stuck with the expensive rivit-on type from Cleveland or is there an FAA-approved substitution to the cheaper and easier to install bolt-on type? This is a $1000 difference! Help and thanks. Bob

[Bob Waters]

Additional information that may help. The Parker/Cleveland website has the applicability for the PA24 Serial Numbers 1 through 3306 that shows main wheel assembly part number 3070 with a footnote (1) that says: "3070 wheel upgraded with thru bolt disc design per SB7100." It shows the 164-00900 disc, which the Johnson parts man says is the through-bolt design. This SB7100 doesn't appear to be a Piper one, so must be Cleveland/Parker one? This might be what I'm looking for. See page 1-21 of:

http://www.parker.com/literature/Aircra ... 001-15.pdf

Thanks again, Bob

[Kristin Winter]

That is a Cleveland SB. You will have to scrounge the individual parts, and it probably takes a field approval as I didn't see any mention that it was a PMA replacement, but it would be worth talking to Cleveland as to whether there has been any FAA approval of this data. I should not be hard, however, to get a field approval.

[Bob Waters]

Here is the SB from Cleveland. Bob