Original Product – Type Certificate Number: 3A12, 3A17
Model: 172B, S/N 17247747 and up, -C, -D, -E, -F, -G; 175, 175A, 175B, and 175C
DESCRIPTION OF TYPE DESIGN CHANGE:
Install Lycoming O-320 or O-360 Series engine with Hartzell HC-82XL-7636D-4
propeller according to RFB Company, Inc. data on Drawing Lists of December 2, 1966, Revision C, dated
November 12, 1967; install Lycoming O-360-B2A engine and Sensenich M-74-DM-0-60 propeller according to Drawing
List Revision D, dated October 14, 1968.
Limitations and Conditions: Installation of Lycoming O-320-B2A engine and Sensenich M-74-DM-0-60 propeller
restricted to Cessna Model 175A, Serial No. 56330, Registration No. N6830E, only.
The installer must determine whether this design change is compatible with previously approved modifications. If the
holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person
written evidence of that permission
This certificate and the supporting data which is the basis for approval shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.
Date of application: September 9, 1965
Date of issuance: January 17, 1967
Date reissued: February 20, 2018; April 6, 2019
Date amended: September 20, 1967; March 15, 1968; April 1, 1969
General Aviation Concepts
172B, S/N 17247747 and up, -C, -D, -E, -F, -G;
175, 175A, 175B, and 175C