What it approves
Installation of a Continental O-470 series engine, McCauley propeller, engine mount, cowling, baffles, and associated parts on the Cessna 175 and P172D series aircraft
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
Part 3 of the Civil Air Regulations.
Original Product - Type Certificate Number: 3A17 Make: Cessna Model: 175, 175A, 175B, 175C, P172D
Description of Type Design Change: Installation of a Continental O-470 series engine, McCauley propeller, engine mount, cowling, baffles, and associated parts on the Cessna 175 and P172D series aircraft, in accordance with Kammeyer Installation Instruction Manual No. 1, dated July 15, 1974, or K-Meyer Conversion Installation Instruction Manual No. 1 and Report No. KM-183 Manufacturing Data both revised November 27, 2002 or later Kammeyer Conversion Data stamped FAA approved.
Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Approval of this type design change applies to the above aircraft models only. A copy of this Certificate, Continuation Sheet Addendum No. SA122NW, and Kammeyer Installation Instruction Manual (or K-Meyer Conversion Instruction Manual) shall be maintained as part of the permanent records of the modified aircraft.
Date of application: April 16, 1974
Date of issuance: July 25, 1974
Date reissued: July 30, 1997, December 22, 1997, October 15, 2012; October 24, 2012
Date amended: May 3, 1991, November 27, 2002
Original signed by Steve Litke
( Signature) Steven C. Litke Program Manager Wichita Aircraft Certification Office
( Title)
FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES
Number SA122NW Date of Issuance: July 25, 1974 Date Amended: May 3, 1991, N ov 27, 2002, Oct 15, 2012; Oct 24, 2012 Date Reissued: July 30, 1997, Dec 22, 1997
The conditions and limitations of Type Certificate Data Sheet (TCDS) No. 3A317 apply, except as follows:
This Supplemental Type Certificate Addendum, which is part of STC SA122NW, prescribes the conditions and limitations under which the product for which the STC was issued meets the requirements of the Civil Air Regulations.
I. Cessna Models 175, 175A, 175B, 175C, and P172D 4PCLM (Normal Category as modified by STC SA122NW)
Engine: Continental 0-470-A, -E, -J, -K, -L, -R, -S Fuel: 80/87 Octane minimum grade aviation gasoline Engine Limits: For All Operations 0-470-A 2600 RPM (225 hp) 0-470-E 2600 RPM (225 hp) 0-470-J 2550 RPM (225 hp) 0-470-K, L, R, S 2600 RPM (230 hp)
Propeller: McCauley- (See Installation Instru ctions for approved models and limitations) Airspeed Limits: Same as Specified by TCDS C.G. Limits: Same as specified by TCDS
Maximum Weight: 2450 lbs All Models except Model P172D 2500 lbs Model P172D when equipped with the 0-470-S engine
Powerplant Instrument Markings
Tachometer: 2600 RPM (Radial Red Line) except 2550 RPM (Radial Red Line) 0-470-J engine only
Oil Temperature Gage: 225º F radial red line except 240º F radial red line 0-470-S engine only
Placards: 1. The following placard is to be inst alled in front and in full view of the pilot:
OPERATION WITHIN THE APPROVED WEIGHT AND CENTER OF GRAVITY LIMITS AT ALL TIMES.
REFER TO THE APPROVED LOADING SCHEDULE”
2. At the propeller control and in full view of the pilot:
“PUSH TO INCREASE RPM.”
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