STC SA1441WE

Supplemental type certificate · Sierra Industries Ltd.

Holder
Sierra Industries Ltd. · United States
Status
Current · Reissued
Status date
July 31, 2017
Applied
May 12, 1967
Product
Aircraft · Small Airplane
Certification basis
Part 3, Part 21
Data sheet
TCDS3A24

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Installation of drooped ailerons in flaps down mode, recontoured wing leading edge (except A185F) stall fence, flap actuated elevator trim system and installation of SC-100 stall warning system. (A185F LANDPLANE; FLOATPLANE; AMPHIBIAN; SKIPLANE)

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.

FAA Form 8110-2 (5/14) Page 1 of 5

Reissued on July 31, 2017 to supersede the original STC, which has been lost or misplaced.

Number: SA1441WE

Part 3 of the Civil Air Regulation, effective May 15, 1956, as amended by 3-1 through 3-5.

Original Product – Type Certificate Number: 3A24 Make: Cessna Model: 185, 185A thru 185E, A185E, A185F Landplane, Floatplane, Amphibian, and Skiplane

Installation of drooped ailerons in flaps down mode, recontoured wing leading edge (except A185F) stall fence and as options, a flap actuated elevator trim system and installation of the SC-100 stall warning system in accordance with R/STOL Systems, Inc. FAA Sealed Drawing List No. 10. This change in type design is also eligible on Cessna Model 185 thru Skiplane conversion under STC No. SA3-717.

Date of Application: May 12, 1967 Date Reissued: 1/15/69; 8/4/69; 4/26/72; 11/5/73; 11/8/84;

10/10/86; 7/21/05; 7/31/17 Date of Issuance: June 29, 1967 Date Amended: 8/14/68; 8/4/69; 2/19/70; 11/30/70; 3/13/72;

4/26/72; 3/21/73; 2/10/75; 7/9/85

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 5

Transfer the ownership of Supplemental Type Certificate Number: SA1441WE

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: SA1441WE

FAA Form 8110-2 (5/14) Page 3 of 5

Date of Issuance: June 29, 1967 Date Amended: July 9, 1985 Date of Reissuance: July 31, 2017

The approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. This determination should include consideration of significant changes in weight distribution, such as an increase in the fixed disposable weight in the fuselage.

The limitations and conditions of Type Certificate Data Sheet 3A24 apply except as follows:

This Addendum which is part of Supplemental Type Certificate No. SA1441WE 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.

Supplemental Type Certificate Holder: R/STOL Systems, Inc.

I. MODEL 185 6PCL-SM (NORMAL CATEGORY) MODEL 185A 6PCL-SM (NORMAL CATEGORY) MODEL 185B 6PCL-SM (NORMAL CATEGORY) MODEL 185C 6PCL-SM (NORMAL CATEGORY) MODEL 185D 6PCL-SM (NORMAL CATEGORY)

C. G. Range

AMPHIBIAN

(+41.0) to (+46.5) @ 3100 lb.

(+36.8) to (+46.5) @ 2500 lb. or less straight line variation between points

Control Surface Movements

Aileron 10 – 100 Inst’l Optional 10-110 Inst’l

Flap Droop from Up Down Flap Droop from Up Down Setting Neutral ±2° ±2° ±2° Setting Neutral ±2° ±2° ±2° 0° 0° 20° 14° 0° 0° 20° 14° 25° 15° 1° 26° 20° 13° 17° 20° 38°±2° 13° 5° 26° 40° 12.5° 16° 19° -1°

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA1441WE

FAA Form 8110-2 (5/14) Page 4 of 5

Date of Issuance: June 29, 1967 Date Amended: July 9, 1985 Date of Reissuance: July 31, 2017

II. MODEL 185E 6PCL-SM (NORMAL CATEGORY)

C. G. Range

AMPHIBIAN:

Same as I above.

Control Surface Movements

AILERONS:

Same as I above.

III. MODEL A185E 6PCL-SM (NORMAL CATEGORY)

C. G. Range

AMPHIBIAN

(+42.3) to (+46.5) @ 3265 lb. Wheels Takeoff Only (+41.0) to (+46.5) @ 3100 lb.

(+36.8) to (+46.5) @ 2500 lb. or less straight line variation between points

Control Surface Movements

AILERONS:

10 – 100 Inst’l Optional 10-110 Inst’l

Flap Droop from Up Down Flap Droop from Up Down Setting Neutral ±2° ±2° ±2° Setting Neutral ±2° ±2° ±2° 0° 0° 20° 14° 0° 0° 20° 14° 25° 15° 1° 26° 20° 13° 17° 20° 38°±2° 13° 5° 26° 40° 12.5° 16° 19° -1°

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA1441WE

FAA Form 8110-2 (5/14) Page 5 of 5

Date of Issuance: June 29, 1967 Date Amended: July 9, 1985 Date of Reissuance: July 31, 2017

IV. MODEL A185F 6PCL-SM (NORMAL CATEGORY)

C. G. Range

AMPHIBIAN

Same as III above.

Control Surface Movements

AILERONS Same as III above.

“FAA Approved R/STOL Systems Inc. Pilot’s Operating Handbook Supplement P OHS 10-110 dated June 26 June 1985, or other FAA approved requirements.”

-END-

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA1441WE

FAA Form 8110-2 (5/14) Page 6 of 5

ADs that name this STC · 1

An AD can apply because an STC is installed, or mention one in its text.

Approved models · 8

MakeModelData sheet
Textron Aviation Inc.1853A24
Textron Aviation Inc.185A3A24
Textron Aviation Inc.185B3A24
Textron Aviation Inc.185C3A24
Textron Aviation Inc.185D3A24
Textron Aviation Inc.185E3A24
Textron Aviation Inc.A185E3A24
Textron Aviation Inc.A185F3A24

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
July 31, 2017Reissued, currentCertificate
July 21, 2005Reissued, earlier issueCertificate