What it approves
Installation of Lycoming O-320-A1A, A1B, A3A, A3B or Lycoming O-320-B1A, B1B, B3A, B3B engine, Hartzell HC-82X or HC-A2X series propellers with 7636D-4 blades and Woodward Model 210080 Governor. Data required: Doyn drawing 2000 dated February 21, 1063 and Doyn installation instructions dated February 21, 1963.
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.
This certificate issued to
Part 3 of the Civil Air Regulations.
Installation of Lycoming O-320-A1A, A1B, A3A, A3B or Lycoming O-320-B1A, B1B, B3A, B3B engine, Hartzell HC-82X or HC- A2X series propellers with 7636D-4 blades and Woodward Model 210080 Governor.
Data required: Doyn drawing 2000 dated February 21, 1063 and Doyn installation instructions dated February 21, 1963.
FAA Approved Airplane Flight Manual Supplement dated April 17, 1963, is required. Engine and propeller limits are listed on the AFMS.
Placard required: (Fuel Cap) O-320-A series engines: “ 80/87 Min. Grade Aviation Fuel.”
O-320-B series engines: “ 91/96 Min. Grade Aviation Fuel.”
Compatibility of this modification with other previously approved modifications must be determined by the installer.
D’Shannon Products, Ltd.
1309 County Road 134 Buffalo, MN 55313 799 Make : Cessna Model : 170, 170A, 170B Date of application : February 26, 1963
Date of issuance : April 17, 1963
Date reissued : 1/25/66; 5/17/78; 3/9/79; 5/12/11; 7/14/11
( Signature) Melvin D. Taylor Manager Atlanta Aircraft Certification Office
( Title)
ADs that name this STC · 2
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 3
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| July 14, 2011 | Reissued, current | Certificate |
| May 12, 2011 | Reissued, earlier issue | Certificate |