# STC SA2495WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Sierra Industries Ltd., United States - Description: Installation of recontoured wing leading edge, staff fences, drooped ailerons in flaps down mode, flap actuated stabilator trim system, new wing tips, SC-100 stall warning system. - Applied: December 15, 1971 - Status date: July 31, 2017 - Product: Aircraft, Small Airplane - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15) - Certificate PDF: https://openairdocs.org/files/sha256/35/c2/35c26ac20263b77e7aae097f6c890501b0fed98f898d0c0027570a6740edc808 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F45ADAA6E9795D5086258720005258F1.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA2495WE ## ADs that name it (1) - [AD 82-23-01 R1](https://openairdocs.org/ad/82-23-01-R1): Placard Near Flap Actuator · Leading edge cuffs, stall fences, stall strips drooped… (Sierra Industries STC SA2312WE or SA2495WE). Effective Apr 7, 1983. Named in the applicability ## Approved models (4) - Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) ## 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 6 Reissued on July 31, 2017 to supersede the original STC, which has been lost or misplaced. Number: SA2495WE Part 3 of the Civil Air Regulations, dated 9 November 1949, including Amendments 3-1 through 3-12. Original Product – Type Certificate Number: 1A15 Make: Piper Model: PA-24, PA24-250, PA24-260, PA24-400 Installation of the following modification in accordance with the drawings noted on FAA sealed Robertson Aircraft Drawing List 19: Recontoured Wing Leading Edge Staff fences Drooped Ailerons in Flaps Down Mode Flap Actuated Stabilator Trim System New Wing Tips (Optional) SC-100 Stall Warning System (Optional) Date of Application: December 15, 1971 Date Reissued: 11/8/84; 10/10/86; 9/8/05; 7/31/17 Date of Issuance: March 20, 1972 Date Amended: September 21, 1976 Signature Title Jim Grigg Manager, Fort Worth A CO Branch, Compliance & Airworthiness Division Sierra Industries, Ltd. 122 Howard Langford Drive Uvalde, TX 78801 FAA Form 8110-2 (5/14) Page 2 of 6 Transfer the ownership of Supplemental Type Certificate Number: SA2495WE 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: SA2495WE FAA Form 8110-2 (5/14) Page 3 of 6 Date of Issuance: March 20, 1972 Date Amended: September 21, 1976 Date of Reissuance: July 31, 2017 Supplemental Type Certificate Addendum No. SA2495WE is a part of this Certificate. A copy of this Certificate must be maintained as a part of the permanent records for each aircraft so modified. This approval should not be extended to other specific airplanes of these same 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 approved modifications will introduce no adverse effect upon the airworthiness of the airplane. The limitations and conditions of Aircraft Specification No. 1A15 apply except as follows: This Addendum which is part of Supplemental Type Certificate No. SA2495WE prescribes conditions and limitations under which the product for which the STC was issued meets the airworthiness requireme nts of the Civil Air Regulations. A copy of this Addendum shall be maintained as part of the modified aircraft permanent records. Supplemental Type Certificate Holder: R/STOL SYSTEMS, INC. **I. MODEL PA24, 4PCLM (NORMAL CATEGORY)** Control Surface Movements **AILERONS** Droop from Neutral UP DOWN Flaps @ 0° ± 2° 0° ± 2° 19° ± 2° 15° ± 1° Flaps @ 18° ± 2° 10° ± 2° 10° ± 2° 24.5° ± 2° Flaps @ 26° + 0° ± 2° 8° ± 2° 10° ± 2° 22.5° ± 2° **FLAPS** 0° ± 2° Full up 26° + 0° Full down REQUIRED EQUIPMENT In addition to the equipment applicable and required by Aircraft Specification 1A15, the following item of equipment must be installed: Robertson Aircraft FAA Approved Airplane Flight Manual Supplement 19-1 to PA24 and PA24-250 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2495WE FAA Form 8110-2 (5/14) Page 4 of 6 Date of Issuance: March 20, 1972 Date Amended: September 21, 1976 Date of Reissuance: July 31, 2017 **II. MODEL PA24-250, 4PCLM (NORMAL CATEGORY)** Control Surfaces AILERONS (For Serial No. 24-1, 24-103 through 24-2843 except 24-2563) Droop from Neutral UP DOWN Flaps @ 0° ± 2° 0° ± 2° 19° ± 2° 15° ± 1° Flaps @ 18° ± 2° 10° ± 2° 10° ± 2° 24.5° ± 2° Flaps @ 26° + 0° - 2° 8° ± 2° 10° ± 2° 22.5° ± 2° AILERONS (For Serial No. 24-2563, 24-2844 and up) Droop from Neutral UP DOWN Flaps @ 0° ± 2° 0° ± 2° 19° ± 2° 15° ± 1° Flaps @ 18° ± 2° 10° ± 2° 10° ± 2° 24.5° ± 2° Flaps @ 31° ± 2° 7.5° ± 2° 12° ± 2° 22° ± 2° FLAPS (For Serial No. 24-1, 24-103 through 24-2843 except 24-2563) 0° ± 2° Full up 26° + 0° -2°Full down FLAPS (For Serial No. 24-2563, 24-2844 and up) 0° ± 2° Full up 31° ± 2°Full down REQUIRED EQUIPMENT In addition to the equipment applicable and required by Aircraft Specification 1A15, the following item of equipment must be installed: Robertson Aircraft FAA Approved Airplane Flight Manual Supplement 19-1 to PA24 and PA24-250 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2495WE FAA Form 8110-2 (5/14) Page 5 of 6 Date of Issuance: March 20, 1972 Date Amended: September 21, 1976 Date of Reissuance: July 31, 2017 **III. MODEL PA24-400, 4PCLM (NORMAL CATEGORY)** Center of Gravity (Straight Line Variation between Points) +87 to +90 inches aft of datum @ 3800 lbs. +81.5 to +90 inches aft of datum @ 3300 lbs. +77 to +90 inches aft of datum @ 2500 lbs. Maximum Weight 3800 lbs. Control Surfaces AILERONS Droop from Neutral UP DOWN Flaps @ 0° ± 2° 0° ± 2° 19° ± 2° 15° ± 1° Flaps @ 18° ± 2° 13° ± 2° 5.5° ± 2° 28° ± 2° Flaps @ 34° + 2° 9° ± 2° 11.5° ± 2° 23° ± 2° **FLAPS** 0° ± 2° Full up 34° ± 2°Full down REQUIRED EQUIPMENT In addition to the equipment applicable and required by Aircraft Specification 1A15, the following item of equipment must be installed: Robertson Aircraft FAA Approved Airplane Flight Manual Supplement 19-3 to PA24-400 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2495WE FAA Form 8110-2 (5/14) Page 6 of 6 Date of Issuance: March 20, 1972 Date Amended: September 21, 1976 Date of Reissuance: July 31, 2017 **IV. MODEL PA24-260, 4PCLM (NORMAL CATEGORY)** Center of Gravity (Straight Line Variation between Points) Note: Applicable to Serial No. 24-4002 and the aircraft listed under “Maximum Weight” if main gear side brace modification has been accomplished. +89.6 to +93.0 inches aft of datum @ 3200 lbs. +86.0 to +93.0 inches aft of datum @ 2900 lbs. +82.5 to +93.0 inches aft of datum @ 2600 lbs. Maximum Weight Note: Applicable to Serial No. 24-4002 and the following if the main gear side brace has been updated per Piper Drawing 26462: Serial Nos. 24-3642, 24-4000, 24-4001, 24-4003 through 24-4782, and 24-4784 through 24-4803. 3200 lbs. Maximum Takeoff, 3040 lbs. Maximum Landing. Control Surfaces AILERONS Droop from Neutral UP DOWN Flaps @ 0° ± 2° 0° ± 2° 19° ± 2° 15° ± 1° Flaps @ 18° ± 2° 10° ± 2° 10° ± 2° 24.5° ± 2° Flaps @ 31° + 2° 7.5° ± 2° 12° ± 2° 22° ± 2° **FLAPS** 0° ± 2° Full up 31° ± 2°Full down REQUIRED EQUIPMENT In addition to the equipment applicable and required by Aircraft Specification 1A15, the following item of equipment must be installed: Robertson Aircraft FAA Approved Airplane Flight Manual Supplement 19-2 to PA24-260. -END- United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2495WE FAA Form 8110-2 (5/14) Page 7 of 6 ## Every issue (2) - July 31, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/35/c2/35c26ac20263b77e7aae097f6c890501b0fed98f898d0c0027570a6740edc808) - September 8, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/1a/43/1a43b1c49eda580f3af16a83c091355143e6026ba6366d7c0e9c5ab64f69b666) --- 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.