# STC SA331SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airline Fueling Inc., United States
- Description: Electric landing gear system.
- Applied: January 3, 1964
- Status date: July 15, 2010
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/45/10/451040f55cc54090902ca10793eacf8e24bb9b7dd784ed069d4b6a1b820efb08
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/677C82D2EF7B9D128625781C007154F9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA331SW

## ADs that name it (0)

None.

## Approved models (4)

- Mooney Aviation Company Inc M20B ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aviation Company Inc M20C ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aviation Company Inc M20D ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aviation Company Inc M20E ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## 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: Installation of electric landing gear system in accordance with Nayak Drawing No. 90000 Change “E” dated 4/6/64.

NOTE: Retractable landing gear kit per note 4 of aircraft spec 2A3 is required for Mooney M20D.

Limitations and Conditions: 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 2A3 Make : Mooney Aviation Company Model : M20B, C, D, & E

Date of application : January 03, 1964

Date of issuance : January 20, 1964

Date reissued : July 15,2010

Date amended : April 17, 1964

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

( Title)

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

## Every issue (1)

- July 15, 2010: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/45/10/451040f55cc54090902ca10793eacf8e24bb9b7dd784ed069d4b6a1b820efb08)

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