# STC SA286NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Sierra Industries Inc - Description: Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, stall fences, aileron centering springs, and conical cambered wing tips. - Status date: July 31, 2017 - Data sheets: A2CE - Certificate PDF: https://openairdocs.org/files/sha256/d5/6b/d56bfeaaebdbe4939031c4ed4050303e195ddfefd46ed0bc32286ca1caf0b221 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7A88B5FDAB24F5EE8625871E00532D5D.0001 - Page: https://openairdocs.org/stc/SA286NW ## ADs that name it None. ## Approved models (1) - Textron Aviation Inc. 336 (TCDS A2CE) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. FAA Form 8110-2 (5/14) Page 1 of 3 Reissued on July 31, 2017 to supersede the original STC, which has been lost or misplaced. Number: SA286NW Part 3 of the Civil Air Regulations, effective 15 May 1956 with amendments 3 -1 through 3-5. Original Product – Type Certificate Number: A2CE Make: Cessna Model: 336 Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, stall fences, aileron centering springs, conical cambered wing tips in accordance with FAA sealed Robertson Aircraft Drawing List No. A -14. Date of Application: March 10, 1976 Date Reissued: 11/8/84; 10/10/86; 9/8/05; 7/31/17 Date of Issuance: April 23, 1976 Date Amended: Signature Title Jim Grigg Manager, Fort Worth ACO Branch , Compliance & Airworthiness Division Sierra Industries, Ltd. 122 Howard Langford Drive Uvalde, TX 78801 FAA Form 8110-2 (5/14) Page 2 of 3 Transfer the ownership of Supplemental Type Certificate Number: SA286NW To (Name and address of transferee) From (Name and address of grantor) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA286NW FAA Form 8110-2 (5/14) Page 3 of 3 Date of Issuance: April 23, 1976 Date of Reissuance: July 31, 2017 The approval of this change in type design applies basically to the above model aircraft only. T his approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously appr oved modifications will introduce no adverse effect upon the airworthiness of that air plane. A copy of this certificate and Addendum SA286NW shall be maintained as part of the permanent records for each aircraft so modified. The conditions and limitations of Type Certificate Data Sheet A2CE apply except as follows: This Addendum, which is part of Supplemental Type Certificate No. SA286NW, 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 permanent records. Robertson Aircraft Drawing 14A104, Sheets 1 and 2 must be maintained in each airplane mo dified by this STC. Supplemental Type Certificate Holder: R/STOL SYSTEMS, INC. I - Model 336, (Normal Category), Approved May 22, 1962 *Airspeed Limits Never Exceed 212 mph (184 knots) Max. Structural Cruising 180 mph (156 knots) Flaps Extended 108 mph ( 94 knots) Maneuvering 145 mph (126 knots) C.G. Range (Landing Gear Extended) (+136.4) to (+142) at 3000 lbs. or less. (+138.8) to (+142) at 3900 lbs. or less. Straight line variation between points given. *Maximum Weight 3900 lbs. Control Surface Movements Ailerons (± 2°) Flap Position Aileron Droop Position Aileron Movement 0° 0° 20° UP 14° DN 20° 13° 8° UP 27° DN 27° (± 1°) 11° 10° UP 25° DN -END- United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA286NW FAA Form 8110-2 (5/14) Page 4 of 3 ## Every issue (2) - July 31, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d5/6b/d56bfeaaebdbe4939031c4ed4050303e195ddfefd46ed0bc32286ca1caf0b221) - September 8, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f8/8b/f88b92c76d18dc919f2b54b8d6391bcd2d000e30a41a705078b34d9dfff87d7a) --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.