Here is the pertinent reference from the TC:
Interior Equipment
401. One of the following CAA (FAA) Approved Airplane Flight Manuals revised to include any statement required under
"Propellers and Propeller Accessories" and/or Item 103, if applicable.
(a) Airplane Flight Manual dated March 24, 1947, or Piper Report No. 551 dated
March 24, 1947 - includes Propeller Item 1 and O-235-C engine.
(b) Piper Report No. 570 dated April 15, 1947, includes Propeller Item 3 and O-235-C engine.
(c) Piper Report No. 565 dated June 13, 1947, includes Propeller Item 1 and Item 103.
(d) Piper Report No. 571 dated June 13, 1947, includes Propeller Item 3 and Item 103.
(e) Edo Report No. 2342 dated April 10, 1947, revised January 11, 1949, includes
Propeller Item 1, O-235-C engine and Item 204.
*(f) Supplement to Flight manual dated April 20, 1955 (Required with Item 403 Ross Control System).
MTV