# STC SA906CE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Williams Robert and Barbara, United States - Description: Installation of Lycoming O-360-A1A180 hp engine and Hartzell HC-C2YK-1B/766A-2 or 7666-2 constant speed propeller. - Applied: August 30, 1972 - Status date: August 5, 1981 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS A13CE](https://openairdocs.org/tcds/A13CE) - Certificate PDF: https://openairdocs.org/files/sha256/a8/79/a879c3de5680c8bdc8f87072f86511bc5be2e1e91340f0b9378fbbd0c06503b4 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A82F28B318C2AE7385256CC20058EA19.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA906CE ## ADs that name it (0) None. ## Approved models (1) - Cessna Aircraft Company 177 ([TCDS A13CE](https://openairdocs.org/tcds/A13CE)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. Possession of the Supplemental Type Certificate (STC) does not constitute rights to the installation of the modification or its design data. The STC and related information (drawings, data, specifications) are the property of the STC holder. The Federal Aviation Administration will not release proprietary data without authorization from the holder. The user must get installation approval or data rights from the STC holder. Knited Scotce of Simerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A906CE This certificate issued to: Robert L. & Barbara V. Williams 117 E. Fixst Uda!1, KS 67146 Certifies that the change in the type design for the filling product with tho limitutives and conditions thomfor as specified herer muls the airuvshiness ryurements fLirt 23 of the Federal Aviation Regulations. Original Product -- Sype Fertificate Number A13CE Make Cessna • Merted 177 desomplion of type I esen Ishange Installation of Lyconing 0-360-A1A 180 hp engine nd Hartzell HC-C2YK-1B/7666A-2 or 7666-2 Constant Speed Propelle: Limatuns and Punditions Installation of engine and propeller in accordance with data outlined in Avcon Industries' docunents, Conversion Kit. 17700. Cessna 177 Cardinal dated May 7, 1973. Limitations and Conditions: of Aircraft Specification No. A13CF apply except as outlined in puges 2 through 3 of this STC. A copy of this STC must be included in the permanent records of each airplane modified in accordance with this STC. This approval should not be extended to other specific airplanes of this model on which other previously approved nodifications are incorporated unless it is determined ...// Tuly 6, 1976 By dron of the menstate ORIGINAL SIGNED BY BarrYD. Clements & Signature : BARRY D. CLEMENTS Chief, Aircraft Certification Progran 11•10: I. Cessna 177 as modified by this STC; 4PCLM (Normal Category) Engine: Lycoming 0-360-A1A *Fuel: 100/130 minimum grade aviation gasoline *Engine limits: For all operations, 2700 r.p.m. (180 hp.) Propellers and propeller limits: Hartzell HC-C2YK-1B/7666A-2 or 7666-2 Diameter: 74" maximum, 72" minimum Pitch settings at 30" station († 1°): Low 140, high 290 Avoid continuous operation between 2000 and 2250 r.p.m. Governor Hartzell F-3-1 and F-3-2, F-3-2A Spinner Avcon 17015 (required) Oil capacity: 8 qt. (+44) (2 qt. unusable); See NOTE 1 for data on undrainable oil Serial numbers eligible: 661, 17700001 and 17700003 thru 17701164 NOTE 2. The following placards must be displayed as indicated: A. Applicable to Model 177 1. In full view of the pilot: This airplane nust be operated in compliance with the operating limitations as stated in the form of placards, markings and manuals." NORMAL CATEGORY Maneuvering speed. . 113 m.p.h. (CAS) Design weight. 2350 pounds Load factor .flaps up. +3.8. -1.52 Flaps down. .+3.5 Altitude loss in stall recovery. .170 ft. Normal category. .No acrobatic maneuvers including spins approved 47 PAGE 2 OF 3 PAGES July 6, 1976 Reissued August 5, 29871AAC73-2651 Anita States of Sicica Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA906CE Airplane is controllable in 16 knots crosswind. Known icing conditions to be avoided. This airplane is certificated for the foilewing flight operations as of date of original airworthiness certificate. (IFR - VFR - DAY - NIGHT) (As applicable) 5. On fuel tank cap: Service this airplane with 100/130 minimum grade aviation gasoline." "Total capacity 24.5 gal." 'Capacity to white line on indicator, 21.0 gal. 11. Tachometer: Avoid continuous operation between 2000 to 2250 r.p.m. (Red arc) (Maximum allowable) - 2700 r.p.m. (Red line) 12. On fuel pressure gauge: Minimum .5 PSI (Red line) Maximum & PSI (Red line) Normal 3T05 PSI (Green arc) 14 . Above propeller control: "Prop-Push to increase" In addition to the placards specified above, the prescribed operating limitations indicated by an asterisk (*) must also be displayed by permanent markings. - END - 47 PAGE 3 OF 3 PAGES July 6, 1976 Reissued August 5, 1981 FAA AC 73-2651 ## Every issue (1) - August 5, 1981: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a8/79/a879c3de5680c8bdc8f87072f86511bc5be2e1e91340f0b9378fbbd0c06503b4) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.