STC SA444NW

Supplemental type certificate · Sierra Industries Inc

Holder
Sierra Industries Inc · United States
Status
Current · Reissued
Status date
September 8, 2005
Applied
March 10, 1977
Product
Aircraft · Small Airplane
Certification basis
Part 3, Part 21
Data sheet
TCDS3A10

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of fowler flaps.

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 4

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

Number: SA444NW

Part 3 of the Civil Air Regulations, dated November 1, 1949 (See T.C. Data Sheet 3A10 for amendments).

Original Product – Type Certificate Number: 310 Make: Cessna Model: 310R/T310R/T310Q (Ser. Nos.

T310Q0810 & T310Q0751)

Installation of Fowler Flaps in accordance with FAA sealed Robertson Aircraft Drawing List No. 31.

Date of Application: March 10, 1977 Date Reissued: 11/8/84; 10/10/86; 9/8/05; 7/31/17 Date of Issuance: May 12, 1977 Date Amended: 7/8/77; 7/25/77; 4/27/78; 7/31/78; 10/24/78

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 4

Transfer the ownership of Supplemental Type Certificate Number: SA444NW

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: SA444NW

FAA Form 8110-2 (5/14) Page 3 of 4

Date of Issuance: May 12, 1977 Date Amended: October 24, 1978 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 type design changes or previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

The limitations and conditions of Type Certificate Data Sheet 3A10 apply except as follows:

This addendum which is part of Supplemental Type Certificate No. SA444NW, 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. Applies to 310R/T310R all Ser. Nos.

AIRSPEED LIMITS: Remain the same, except for:

Flaps Extended 10° 167 KIAS Flaps Extended 30° 129 KIAS

II. T310Q Ser. No. 310Q0810 and 310Q0751

AIRSPEED LIMITS: Remain the same, except for:

Flaps Extended 10° 192 MPH IAS Flaps Extended 30° 148 MPH IAS

III. 310R/T310R all Ser. Nos.

C. G. LIMITS: Remain the same, except for:

(+36.3) at 5140 lbs or less (fwd. limit) Straight line variation between points given.

IV. T310Q Ser. Nos. 310Q0810 and 310Q0751

C. G. LIMITS: Remain the same, except for:

(+36.9) at 5235 lbs or less (fwd limit) Straight line variation between points given.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA444NW

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

Date of Issuance: May 12, 1977 Date Amended: October 24, 1978 Date of Reissuance: July 31, 2017

V. Applicable to all models

CONTROL SURFACE MOVEMENTS: Remain the same, except for:

Wing Flaps Down 30°

All autopilots approved on the basic models are compatible with this modification and subject to the limitations established during each autopilot certification test.

The following limitation applies to all autopilots:

Max 10° Flaps with autopilot engaged.

VI. REQUIRED PLACARDS

“Autopilot Limitations Placard” position in full view of pilot near autopilot control.

“Max 10° Flaps with autopilot engaged”.

-END-

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA444NW

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

ADs that name this STC · 0

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

No AD in this release names this STC

Approved models · 3

MakeModelData sheet
Textron Aviation Inc.310R3A10
Textron Aviation Inc.T310Q3A10
Textron Aviation Inc.T310R3A10