# STC SA5028NM - Type: Supplemental type certificate - Status: Current, Issued - Holder: Dutton William A, United States - Description: Installation of a Continental O-200-A engine, McCauley 1A101/DCM propeller, and associated installation components. Limited to installation on serial number 7274 ONLY. - Applied: June 19, 1989 - Status date: February 8, 1991 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS A-696](https://openairdocs.org/tcds/A-696) - Certificate PDF: https://openairdocs.org/files/sha256/ec/0c/ec0c51b2ca1f0e0d7d39985c27f7078754e1e4a9c0e53104b39ca3aa207312f5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A7E55802BBA7567886256E5C005775EE.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA5028NM ## ADs that name it (0) None. ## Approved models (1) - Taylorcraft Aviation LLC BC12-D ([TCDS A-696](https://openairdocs.org/tcds/A-696)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America 3103 Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5028NM This certificate issued to: WILLIAM A. DUTTON Part 04 of the CiVil Air Regulalions. as amended to May 1, 1938. Original Product - Type Gertificate Number: A-696 Make: Taylorcraft Model: BC12-D, Landplane only, S/N 7274 Only Description of Type Design Change: Installation of a Continental 0-200-A Engine, McCauley 1A101/DCM Propeller, and associated installation components in accordance with William A. Dutton Report, dated June 19, 1989, or later FAA approved revision. FAA Approved William A. Dutton Supplemental Flight Manua No. 1 for Taylorcraft BC12-D, dated January 23, 1991, also is required as part of this installation. Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Taylorcraft Model BC12-D, Serial No. 7274 only. Conversion of Model BC12-D to the equivalent of BC12-D-85 in accordance with STC SA1-210 is required with this installation. Date of Application: June 19, 1989 I ute wissued Date of Issuance: February 8, 1991 S ate unended: FEDERAL AVIATION ection of the SAdministrater Manager, Los Angeles Aircraft (Signature * MINISTRATO Certification Office (Title ) 47. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA5028NM The conditions & limitations of Aircraft Specification No. A-696 apply except as follows: This Addendum, which is part of Supplemental Type Certificate No. SA5028NM, prescribes conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations. A copy of this Addendum shall be maintained as part of the modified aircraft's permanent records. I - Model BC12-D, 2PCLM Engine: Continental 0-200-A Fuel: 80 Minimum Grade Aviation Gasoline Engine Limits: For all operations, 2500 RPM (91HP) Propeller and McCauley 1A101/DCM Propeller Limits: Diameter: Not over 69 in. Not under 67 in. Static r.p.m. at maximum permissible throttle setting: Not over 2500, not under 2400. No additional tolerance permitted. Airspeed Limits: Landplane: Level flight or climb 105 m.p.h. (ref.) Glide or dive 140 m.p.h. Maximum Weight: Landplane: 1280 lbs. Fuel Capacity: 24 gals. total, 21 gals. usable (12 gal. tank in fuselage at -9 and 6 gal. tank in each wing at +24). See NOTE 1 for data on unusable fuel. Oil Capacity: 6 Qts. (-29.4) Powerplant Instrument Markings: Tachometer: Normal Operating RPM (Green arc) Maximum 2500 RPM (Red radial) 2200 RPM to 2500 Oil Temperature: Maximum 240°F (Red Radial) Oil Pressure: Maximum 60 psi (Red Radial) Normal 30 psi to 60 psi (Green arc) Caution 10 psi to 30 psi (Yellow arc) **FAA FORM 8110-2-1 (10-69) PAGE 3 OF 4 PAGES FAA AC 82-03578** United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA5028NM Required Equipment: In addition to the equipment applicable and required by Aircraft Specification No. A-696, the equipment specified by William A. Dutton Report, dated June 19, 1989, must be installed as a result of the incorporation of this SIC. NOTE 1. Current weight and balance report including list of equipment included in certificated empty weight, and loading instructions when necessary, must be in the aircraft. The certificated empty weight and corresponding center of gravity location must include unusable fuel of 18 lbs. (-9) fwd. tank). NOTE 2. The following placards must be installed: a. At the engine oil filler cap: "Oil 6 Quarts" b. At the left and right wing auxiliary fuel tank filler caps: "FUEL - 80 MIN. GRADE AVGAS - CAPACITY 6 GAL." c. On the instrument panel near the auxiliary fuel transfer valve: "FUEL CAPACITY 24 GAL. (21 USABLE)" "AUX. WING TANK USABLE FUEL 6 GAL." (left side of panel) "REFILL MAIN TANK WHEN LESS THAN HALF EMPTY IN LEVEL FLIGHT ONLY" (center of placard) "AUX WING TANK USABLE FUEL 6 GAL." (right side of placard) d. At the main fuel shutoff valve "FUEL SHUTOFF - PULL OFF" e. At the Starter Control "STARTER PULL ON" - THE END- **FAA FORM 8110-2-1 (10-69) PAGE 4 OF 4 PAGES FAA AC 82-03578** ## Every issue (1) - February 8, 1991: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ec/0c/ec0c51b2ca1f0e0d7d39985c27f7078754e1e4a9c0e53104b39ca3aa207312f5) --- 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.