# STC SA590SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airline Fueling Inc., United States
- Description: Gross weight increased.
- Applied: July 15, 2010
- Status date: July 15, 2010
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/93/e8/93e8af2630fa10951d88b1fd6a5748390817addd580bd9919e87678c102f5229
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C09C21F977E4CA748625781C0062605C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA590SW

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-23 Series ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

## 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.

Part 3 of the Civil Air Regulations.

Description of Type Design Change: Increase gross weight to 5200 lbs. take-off and 4940 lbs. landing according to Installation Instructions dated 1/12/65.

Limitations and Conditions: 1. FAA Approved Airplane Flight Manual Supplement dated 1/12/66 required. 2.

Eligible only on Serial No. 27-2001 through 27-2504 with Piper Airplane Flight Manual dated 12/15/61. 3. Weight and C.G. limits as shown on AFM Supplement. 4. Original landing gear doors or doors approved by STC SA423SW are eligible according to E.O. One(1) dated 4/20/71. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Airline Fueling, Inc.

513 Waring-Welfare Rd.

Waring, TX 78074 1A10 Make : Piper Model : PA-23-250 Date of application:

Date of issuance: January 13, 1966

Date reissued: April 22, 1971; July 15, 2010

( Signature) S. Frances Cox Manager, Special Certification Office Southwest Region

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 3

FAA Form 8110-2-1(10-69) Page 3 of 3

Number SA590SW Date of Issuance: January 13, 1966

## Every issue (1)

- July 15, 2010: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/93/e8/93e8af2630fa10951d88b1fd6a5748390817addd580bd9919e87678c102f5229)

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